diff options
Diffstat (limited to 'I_anno/Programmazione_2/exercises')
22 files changed, 0 insertions, 2184 deletions
diff --git a/I_anno/Programmazione_2/exercises/carattere-maggiore.cc b/I_anno/Programmazione_2/exercises/carattere-maggiore.cc deleted file mode 100644 index 2e89fcd..0000000 --- a/I_anno/Programmazione_2/exercises/carattere-maggiore.cc +++ /dev/null @@ -1,40 +0,0 @@ -#include<iostream> -#include<map> -#include<fstream> - -using namespace std; - - - -int main() { - ifstream in("input.txt"); - ofstream out("output.txt"); - - for(int ts = 0; ts < 100; ++ts) { - string line; - getline(in, line); - map<char, int> chs; - for(auto const& c : line) { - if(c == ' ') continue; - if(chs.find(c) != chs.end()) - chs[c]++; - else - chs[c] = 1; - } - int n = 0; - char c = 'a'; - for(auto const& i : chs) { - if(i.second >= n) { - if(i.first >= c) { - n = i.second; - c = i.first; - } - } - } - out << c << ' ' << n << endl; - } - - out.close(); - in.close(); - return 0; -} diff --git a/I_anno/Programmazione_2/exercises/dequeue.cc b/I_anno/Programmazione_2/exercises/dequeue.cc deleted file mode 100644 index 4b012c4..0000000 --- a/I_anno/Programmazione_2/exercises/dequeue.cc +++ /dev/null @@ -1,137 +0,0 @@ - -#include<iostream> -#include<fstream> - -using namespace std; - -template<class T> -class node { -public: - node(T key, node<T>* next) : _key{key}, _next{next} {} - node(T key) : _key{key}, _next{nullptr} {} - const T& key() const { return _key; } - T& key() { return _key; } - const node<T>*& next() const { return _next; } - node<T>*& next() { return _next; } -private: - T _key; - node<T>* _next; -}; - -template<class T> -class Coda { -public: - Coda() : _head{nullptr}, _tail{nullptr} {} - ~Coda() { - - } - Coda<T>* enqueue(T val) { - if(!_head) { - _head = new node<T>{val, nullptr}; - _tail = _head; - } else { - _tail->next() = new node<T>{val, nullptr}; - _tail = _tail->next(); - } - - return this; - } - node<T>* dequeue() { - if(!_head) return nullptr; - node<T>* elem = _head; - delete _head; - _head = elem->next(); - - return elem; - } - - bool is_empty() { return _head == nullptr; } -private: - node<T>* _head; - node<T>* _tail; -}; - -int main() { - ifstream in("input.txt"); - ofstream out("output.txt"); - - for(int ts = 0; ts < 100; ++ts) { - string t; - int n; - in >> t; - switch(t.at(0)) { - case 'b': { - Coda<bool>* queue = new Coda<bool>{}; - in >> n; - string s; - for(int i = 0; i < n; ++i) { - in >> s; - if(s.at(0) == 'i') { - queue->enqueue(s.at(1) - '0'); - } else { - queue->dequeue(); - } - } - while(!queue->is_empty()) - out << queue->dequeue()->key() << ' '; - out << endl; - break; - } - case 'd': { - Coda<double>* queue = new Coda<double>{}; - in >> n; - string s; - for(int i = 0; i < n; ++i) { - in >> s; - if(s.at(0) == 'i') { - queue->enqueue(stod(s.substr(1, s.length()-1))); - } else { - queue->dequeue(); - } - } - while(!queue->is_empty()) - out << queue->dequeue()->key() << ' '; - out << endl; - break; - } - case 'c': { - Coda<char>* queue = new Coda<char>{}; - in >> n; - string s; - for(int i = 0; i < n; ++i) { - in >> s; - if(s.at(0) == 'i') { - queue->enqueue(s.at(1)); - } else { - queue->dequeue(); - } - } - while(!queue->is_empty()) - out << queue->dequeue()->key() << ' '; - out << endl; - break; - } - case 'i': { - Coda<int>* queue = new Coda<int>{}; - in >> n; - string s; - for(int i = 0; i < n; ++i) { - in >> s; - if(s.at(0) == 'i') { - queue->enqueue(stoi(s.substr(1, s.length()-1))); - } else { - queue->dequeue(); - } - } - while(!queue->is_empty()) - out << queue->dequeue()->key() << ' '; - out << endl; - break; - } - } - } - in.close(); - out.close(); - return 0; -} - diff --git a/I_anno/Programmazione_2/exercises/doppioni.cc b/I_anno/Programmazione_2/exercises/doppioni.cc deleted file mode 100644 index fdd3e88..0000000 --- a/I_anno/Programmazione_2/exercises/doppioni.cc +++ /dev/null @@ -1,77 +0,0 @@ -#include<iostream> -#include<fstream> - -using namespace std; - -template<class T> -class node { -public: - node(T key, node* parent, node* right, node* left) : _key{key}, _parent{parent}, _right{right}, _left{left} {} - T& key() { return _key; } - const T& key() const { return _key; } - node<T>*& parent() { return _parent; } - const node<T>*& parent() const { return _parent; } - node<T>*& right() { return _right; } - const node<T>*& right() const { return _right; } - node<T>*& left() { return _left; } - const node<T>*& left() const { return _left; } -private: - T _key; - node<T>* _parent; - node<T>* _right; - node<T>* _left; -}; - -class bst { -public: - bst() : _duplicates{0}, _root{nullptr} {} - bst* add(int val) { - node<int>* iter = _root; - node<int>* prev = nullptr; - while(iter) { - prev = iter; - if(iter->key() == val) { - _duplicates++; - return this; - } - - if(iter->key() > val) - iter = iter->right(); - else - iter = iter->left(); - } - - node<int>* nodus = new node<int>{val, prev, nullptr, nullptr}; - if(!prev) - _root = nodus; - else if(prev->key() > val) - prev->right() = nodus; - else - prev->left() = nodus; - - return this; - } - const int& duplicates() const { return _duplicates; } -private: - int _duplicates; - node<int>* _root; -}; - -int main() { - ifstream in("input.txt"); - ofstream out("output.txt"); - for(int ts = 0; ts < 100; ++ts) { - bst* b = new bst{}; - int n; - in >> n; - int e; - for(int i = 0; i < n; ++i) { - in >> e; - b->add(e); - } - out << b->duplicates() << endl; - } - in.close(); - out.close(); - return 0; -} diff --git a/I_anno/Programmazione_2/exercises/estremi-uguali.cc b/I_anno/Programmazione_2/exercises/estremi-uguali.cc deleted file mode 100644 index 63ac019..0000000 --- a/I_anno/Programmazione_2/exercises/estremi-uguali.cc +++ /dev/null @@ -1,32 +0,0 @@ -#include<iostream> -#include<string> -#include<fstream> - -using namespace std; - -int result(string s) { - if(s.at(0) == s.at(s.length()-1)) - return 1; - - return 0; -} - -int main() { - ifstream in("input.txt"); - ofstream out("output.txt"); - - for(int ts = 0; ts < 100; ++ts) { - int _; - string s; - int size{}; - for(int i = 0; i < 3; ++i) { - in >> _ >> s; - size += result(s); - } - out << size << '\n'; - } - - in.close(); - out.close(); - return 0; -} diff --git a/I_anno/Programmazione_2/exercises/even-length.cc b/I_anno/Programmazione_2/exercises/even-length.cc deleted file mode 100644 index 2d3d6a4..0000000 --- a/I_anno/Programmazione_2/exercises/even-length.cc +++ /dev/null @@ -1,27 +0,0 @@ -#include<iostream> -#include<string> -#include<fstream> - -using namespace std; - -string result(string s) { - if(s.length() % 2 == 0) - return s; - - return s.substr(0, s.length()-1); -} - -int main() { - ifstream in("input.txt"); - ofstream out("output.txt"); - - for(int ts = 0; ts < 100; ++ts) { - string s; - in >> s; - out << result(s) << '\n'; - } - - in.close(); - out.close(); - return 0; -} diff --git a/I_anno/Programmazione_2/exercises/exam_08_10_14.cc b/I_anno/Programmazione_2/exercises/exam_08_10_14.cc deleted file mode 100644 index c9c33be..0000000 --- a/I_anno/Programmazione_2/exercises/exam_08_10_14.cc +++ /dev/null @@ -1,202 +0,0 @@ -#include<iostream> - -using namespace std; - -template<class H> class MultiBST { - virtual MultiBST<H>* ins(H x) = 0; - virtual int multiplicity(H x) = 0; - virtual void inorder() = 0; -}; - -template<class H> -class node { -public: - node(H val) : _key{val}, _parent{nullptr}, _left{nullptr}, _right{nullptr}, _rk{1} {} - H& key() { return _key; } - const H& key() const { return _key; } - node<H>*& parent() { return _parent; } - const node<H>*& parent() const { return _parent; } - node<H>*& left() { return _left; } - const node<H>*& left() const { return _left; } - node<H>*& right() { return _right; } - const node<H>*& right() const { return _right; } - int& rk() { return _rk; } - const int& rk() const { return _rk; } -private: - H _key; - node<H>* _parent; - node<H>* _left; - node<H>* _right; - int _rk; -}; - -template<class H> -class MyMultiBST : public MultiBST<H> { -public: - MyMultiBST() : _root{nullptr} {} - node<H>*& root() { return _root; } - const node<H>*& root() const { return _root; } - int multiplicity(H x) { - auto elem = _search(x); - if(elem) - return elem->rk(); - return 0; - } - MyMultiBST<H>* ins(H x) { - auto iter = _search(x); - if(iter) { - iter->rk() = iter->rk()+1; - } else { - iter = _root; - node<H>* y{nullptr}; - - while(iter) { - y = iter; - if(iter->key() > x) - iter = iter->left(); - else - iter = iter->right(); - } - - node<H>* nodus = new node<H>{x}; - nodus->parent() = y; - if(!y) { - _root = nodus; - } else if(y->key() > x) { - y->left() = nodus; - } else { - y->right() = nodus; - } - } - - return this; - } - void inorder() { - _inorder(_root); - } - MyMultiBST<H>* del(H x) { - node<H>* y; - node<H>* z = _search(x); - - if(!z) return this; - - if(z->rk() > 1) { - z->rk() = z->rk()-1; - } else { - if(!z->left()) { - _transplant(z, z->right()); - } else if(!z->right()) { - _transplant(z, z->left()); - } else { - y = _min(z->right()); - if(y->parent() != z) { - _transplant(y, y->right()); - y->right() = z->right(); - y->right()->parent() = y; - } - _transplant(z, y); - y->left() = z->left(); - y->left()->parent() = y; - delete z; - } - } - - return this; - } - node<H>* predecessor(H x) { - auto iter = _search(x); - if(!iter) return nullptr; - if(iter->left()) - return _max(iter->left()); - - auto y = iter->parent(); - while(y && iter == y->left()) { - iter = y; - y = y->parent(); - } - - return y; - } - int rank(H x) { - auto iter = predecessor(x); - int sum{1}; - while(iter) { - sum+=iter->rk(); - iter = predecessor(iter->key()); - } - return sum; - } -private: - void _transplant(node<H>* u, node<H>* v) { - if(!u->parent()) _root = v; - else if(u == u->parent()->left()) - u->parent()->left() = v; - else - u->parent()->right() = v; - - if(v) - v->parent() = u->parent(); - } - node<H>* _max(node<H>* x) { - if(!x) return nullptr; - - auto iter = x; - while(iter->right()) { - iter = iter->right(); - } - - return iter; - } - node<H>* _min(node<H>* x) { - if(!x) return nullptr; - - auto iter = x; - while(iter->left()) { - iter = iter->left(); - } - - return iter; - } - void _inorder(node<H>* p) { - if(p) { - _inorder(p->left()); - for(int i = 0; i < p->rk(); ++i) { - cout << p->key() << ' '; - } - _inorder(p->right()); - } - } - node<H>* _search(H val) { - auto iter = _root; - while(iter && iter->key() != val) { - if(iter->key() > val) - iter = iter->left(); - else - iter = iter->right(); - } - - return iter; - } - node<H>* _root; -}; - -int main() { - MyMultiBST<int>* t = new MyMultiBST<int>{}; - - for(auto const& i : {10, 7, 7, 23, 30, 4, 1, 5, 9, 5, 1, 7, 1, 9}) - t->ins(i); - - t->inorder(); - cout << '\n'; - for(auto const& i : {5, 7, 17}) - cout << i << ": " << t->multiplicity(i) << endl; - - for(auto const& i : {7, 4, 23, 7, 7}) - t->del(i); - t->inorder(); - cout << '\n'; - for(auto const& i: {5, 9, 30}) - cout << t->rank(i) << ' '; - delete t; - return 0; -} diff --git a/I_anno/Programmazione_2/exercises/exam_20_07_20/ex1.cpp b/I_anno/Programmazione_2/exercises/exam_20_07_20/ex1.cpp deleted file mode 100644 index 4f08a74..0000000 --- a/I_anno/Programmazione_2/exercises/exam_20_07_20/ex1.cpp +++ /dev/null @@ -1,39 +0,0 @@ -#include<iostream> -#include<sstream> -#include<fstream> -#include<vector> - -using namespace std; -int insertionsort(vector<int>& a, int n) { - int c = 0; - for(int i = 1; i < n; ++i) { - int j = i-1; - int key = a[i]; - while(j > -1 && a[j] > key) { - swap(a[j+1], a[j]); - --j; - c++; - } - a[j+1] = key; - } - return c; -} -int main() { - ifstream in("input.txt"); - ofstream out("output.txt"); - - for(int ts = 0; ts < 100; ++ts) { - int N; - in >> N; - int a, b; - vector<int> v; - for(int i = 0; i < N; ++i) { - in >> a >> b; - v.push_back(a+b); - } - out << insertionsort(v, v.size()) << endl; - } - in.close(); - out.close(); - return 0; -} diff --git a/I_anno/Programmazione_2/exercises/exam_20_07_20/ex2.cpp b/I_anno/Programmazione_2/exercises/exam_20_07_20/ex2.cpp deleted file mode 100644 index aed25e4..0000000 --- a/I_anno/Programmazione_2/exercises/exam_20_07_20/ex2.cpp +++ /dev/null @@ -1,63 +0,0 @@ -#include<iostream> -#include<sstream> -#include<fstream> -#include<queue> - -using namespace std; -using pi = tuple<int, int, vector<int>>; - -class comp { -public: - bool operator()(const pi& lhs, const pi& rhs) const { - auto xl = get<0>(lhs); - auto yl = get<0>(rhs); - - auto il = get<1>(lhs); - auto jl = get<1>(rhs); - if(xl == yl) - return il > jl; - return xl > yl; - } -}; - -int main() { - ifstream in("input.txt"); - ofstream out("output.txt"); - - for(int ts = 0; ts < 100; ++ts) { - int R, C; - in >> R >> C; - vector<vector<int>> v; - priority_queue<pi, vector<pi>, comp> pq; - int k; - for(int i = 0; i < R; ++i) { - v.push_back(vector<int>{}); - for(int j = 0; j < C; ++j) { - in >> k; - v[i].push_back(k); - } - } - - int index = 0; - for(auto const& i : v) { - int s = 0; - pi qq; - for(auto const& j : i) - s += j; - get<0>(qq) = s; - get<1>(qq) = index++; - get<2>(qq) = i; - pq.push(qq); - } - while(!pq.empty()) { - auto q = pq.top(); - pq.pop(); - for(auto const& i : get<2>(q)) - out << i << ' '; - } - out << endl; - } - in.close(); - out.close(); - return 0; -} diff --git a/I_anno/Programmazione_2/exercises/exam_20_07_20/ex3.cpp b/I_anno/Programmazione_2/exercises/exam_20_07_20/ex3.cpp deleted file mode 100644 index 71f9c65..0000000 --- a/I_anno/Programmazione_2/exercises/exam_20_07_20/ex3.cpp +++ /dev/null @@ -1,284 +0,0 @@ -#include<iostream> -#include<sstream> -#include<fstream> - -using namespace std; - -template<class T> -struct node { - T key; - node<T>* prev; - node<T>* right; - node<T>* left; -}; - -template<class T> -class bst { -public: - bst() : root{nullptr} , _val{0}{} - - ~bst() { - // TODO - } - - bst<T>* insert(initializer_list<T>&& list) { - for(auto const& i : list) - insert(i); - - return this; - } - - bst<T>* insert(T k) { - node<T>* nodus = new node<T>{k, nullptr, nullptr, nullptr}; - node<T>* iter = root; - node<T>* prev = nullptr; - - while(iter) { - prev = iter; - iter = (k < iter->key) ? iter->left : iter->right; - } - - nodus->prev = prev; - if(!prev) - root = nodus; - else if(k < prev->key) - prev->left = nodus; - else - prev->right = nodus; - - return this; - } - - bst<T>* remove(initializer_list<T>&& list) { - for(auto const& i : list) - remove(i); - - return this; - } - - bst<T>* remove(T k) { - node<T>* nodus = search(k); - if(!nodus) return this; - - if(!nodus->left) { - _transplant(nodus, nodus->right); - } else if(!nodus->right) { - _transplant(nodus, nodus->left); - } else { - node<T>* iter = _min(nodus->right); - if(iter->prev != nodus) { - _transplant(iter, iter->right); - iter->right = nodus->right; - iter->right->prev = iter; - } - _transplant(nodus, iter); - iter->left = nodus->left; - iter->left->prev = iter; - } - - delete nodus; - return this; - } - - node<T>* min() { - return _min(root); - } - - node<T>* min(node<T>* nodus) { - return _min(nodus); - } - - node<T>* max() { - return _max(root); - } - - node<T>* max(node<T>* nodus) { - return _max(nodus); - } - - node<T>* search(T k) { - node<T>* iter = root; - while(iter && iter->key != k) - iter = (iter->key > k) ? iter->left : iter->right; - - return iter; - } - - node<T>* successor(T k) { - node<T>* nodus = search(k); - if(!nodus) return nullptr; - - if(nodus->right) - return min(nodus->right); - - node<T>* prev = nodus->prev; - while(prev && nodus == prev->right) { - nodus = prev; - prev = prev->prev; - } - - return prev; - - } - node<T>* predecessor(T k) { - node<T>* nodus = search(k); - if(!nodus) return nullptr; - - if(nodus->left) - return max(nodus->left); - - node<T>* prev = nodus->prev; - while(prev && nodus == prev->left) { - nodus = prev; - prev = prev->prev; - } - - return prev; - } - - friend ostream& operator<<(ostream& os, bst<T>* tree) { - tree->_inorder(os, tree->root); - return os; - } - T sol(T k) { - return _max(search(k))->key; - } -private: - int _val; - void _transplant(node<T>* u, node<T>* v) { - if(!u->prev) { - root = v; - } else if(u == u->prev->left) { - u->prev->left = v; - } else { - u->prev->right = v; - } - - if(v) - v->prev = u->prev; - } - - node<T>* _min(node<T>* root) { - node<T>* iter = root; - while(iter && iter->left) - iter = iter->left; - - return iter; - } - - node<T>* _max(node<T>* root) { - node<T>* iter = root; - while(iter && iter->right) - iter = iter->right; - - return iter; - } - - void _inorder(ostream& os, node<T>* root) { - if(root) { - if(root->right && root->left) { - _val++; - } - _inorder(os, root->left); - os << root->key << ' '; - _inorder(os, root->right); - } - } - - void _preorder(ostream& os, node<T>* root) { - if(root) { - os << root->key << ' '; - _inorder(os, root->left); - _inorder(os, root->right); - } - } - - void _postorder(ostream& os, node<T>* root) { - if(root) { - _inorder(os, root->left); - _inorder(os, root->right); - os << root->key << ' '; - } - } - node<T>* root; -}; - -int main() { - ifstream in("input.txt"); - ofstream out("output.txt"); - - for(int ts = 0; ts < 100; ++ts) { - string t, comm; - in >> t; - int n; - switch(t.at(0)) { - case 'd': - { - bst<double>* b = new bst<double>{}; - in >> n; - double k; - for(int i = 0; i < n; ++i) { - in >> comm; - stringstream tcomm(comm); - int ex= 0; - while(getline(tcomm, comm, ':')) { - if(ex == 0) { - if(comm == "ins") - ex = 1; - else - ex = 2; - } else { - if(ex == 1) - b->insert(stod(comm)); - else - b->remove(stod(comm)); - ex = 0; - } - } - } - in >> k; - cout << b << endl; - out << b->sol(k) << endl; - - delete b; - break; - } - case 'i': - { - bst<int>* b = new bst<int>{}; - in >> n; - int k; - for(int i = 0; i < n; ++i) { - in >> comm; - stringstream tcomm(comm); - int ex= 0; - while(getline(tcomm, comm, ':')) { - if(ex == 0) { - if(comm == "ins") - ex = 1; - else - ex = 2; - } else { - if(ex == 1) - b->insert(stoi(comm)); - else - b->remove(stoi(comm)); - ex = 0; - } - } - } - in >> k; - cout << b << endl; - out << b->sol(k) << endl; - - delete b; - break; - } - } - } - - in.close(); - out.close(); - return 0; -} - diff --git a/I_anno/Programmazione_2/exercises/exam_20_07_20/ex4.cpp b/I_anno/Programmazione_2/exercises/exam_20_07_20/ex4.cpp deleted file mode 100644 index e234363..0000000 --- a/I_anno/Programmazione_2/exercises/exam_20_07_20/ex4.cpp +++ /dev/null @@ -1,293 +0,0 @@ -#include<iostream> -#include<sstream> -#include<fstream> - -using namespace std; - -template<class T> -struct node { - T key; - node<T>* prev; - node<T>* right; - node<T>* left; -}; - -template<class T> -class bst { -public: - bst() : root{nullptr} , _val{0}{} - - ~bst() { - // TODO - } - - bst<T>* insert(initializer_list<T>&& list) { - for(auto const& i : list) - insert(i); - - return this; - } - - bst<T>* insert(T k) { - node<T>* nodus = new node<T>{k, nullptr, nullptr, nullptr}; - node<T>* iter = root; - node<T>* prev = nullptr; - - while(iter) { - prev = iter; - iter = (k < iter->key) ? iter->left : iter->right; - } - - nodus->prev = prev; - if(!prev) - root = nodus; - else if(k < prev->key) - prev->left = nodus; - else - prev->right = nodus; - - return this; - } - - bst<T>* remove(initializer_list<T>&& list) { - for(auto const& i : list) - remove(i); - - return this; - } - - bst<T>* remove(T k) { - node<T>* nodus = search(k); - if(!nodus) return this; - - if(!nodus->left) { - _transplant(nodus, nodus->right); - } else if(!nodus->right) { - _transplant(nodus, nodus->left); - } else { - node<T>* iter = _min(nodus->right); - if(iter->prev != nodus) { - _transplant(iter, iter->right); - iter->right = nodus->right; - iter->right->prev = iter; - } - _transplant(nodus, iter); - iter->left = nodus->left; - iter->left->prev = iter; - } - - delete nodus; - return this; - } - - node<T>* min() { - return _min(root); - } - - node<T>* min(node<T>* nodus) { - return _min(nodus); - } - - node<T>* max() { - return _max(root); - } - - node<T>* max(node<T>* nodus) { - return _max(nodus); - } - - node<T>* search(T k) { - node<T>* iter = root; - while(iter && iter->key != k) - iter = (iter->key > k) ? iter->left : iter->right; - - return iter; - } - - node<T>* successor(T k) { - node<T>* nodus = search(k); - if(!nodus) return nullptr; - - if(nodus->right) - return min(nodus->right); - - node<T>* prev = nodus->prev; - while(prev && nodus == prev->right) { - nodus = prev; - prev = prev->prev; - } - - return prev; - - } - node<T>* predecessor(T k) { - node<T>* nodus = search(k); - if(!nodus) return nullptr; - - if(nodus->left) - return max(nodus->left); - - node<T>* prev = nodus->prev; - while(prev && nodus == prev->left) { - nodus = prev; - prev = prev->prev; - } - - return prev; - } - - friend ostream& operator<<(ostream& os, bst<T>* tree) { - tree->_inorder(os, tree->root); - return os; - } - T sol(T k) { - auto x = search(k); - auto m = _max(x)->key; - auto mnn = _min(x); - T mn; - if(mnn->right) - mn = _min(mnn->right)->key; - else - mn = mnn->key; - cout << m << ' ' << mn << endl; - return m - mn; - } -private: - int _val; - void _transplant(node<T>* u, node<T>* v) { - if(!u->prev) { - root = v; - } else if(u == u->prev->left) { - u->prev->left = v; - } else { - u->prev->right = v; - } - - if(v) - v->prev = u->prev; - } - - node<T>* _min(node<T>* root) { - node<T>* iter = root; - while(iter && iter->left) - iter = iter->left; - - return iter; - } - - node<T>* _max(node<T>* root) { - node<T>* iter = root; - while(iter && iter->right) - iter = iter->right; - - return iter; - } - - void _inorder(ostream& os, node<T>* root) { - if(root) { - if(root->right && root->left) { - _val++; - } - _inorder(os, root->left); - os << root->key << ' '; - _inorder(os, root->right); - } - } - - void _preorder(ostream& os, node<T>* root) { - if(root) { - os << root->key << ' '; - _inorder(os, root->left); - _inorder(os, root->right); - } - } - - void _postorder(ostream& os, node<T>* root) { - if(root) { - _inorder(os, root->left); - _inorder(os, root->right); - os << root->key << ' '; - } - } - node<T>* root; -}; - -int main() { - ifstream in("input.txt"); - ofstream out("output.txt"); - - for(int ts = 0; ts < 100; ++ts) { - string t, comm; - in >> t; - int n; - switch(t.at(0)) { - case 'd': - { - bst<double>* b = new bst<double>{}; - in >> n; - double k; - for(int i = 0; i < n; ++i) { - in >> comm; - stringstream tcomm(comm); - int ex= 0; - while(getline(tcomm, comm, ':')) { - if(ex == 0) { - if(comm == "ins") - ex = 1; - else - ex = 2; - } else { - if(ex == 1) - b->insert(stod(comm)); - else - b->remove(stod(comm)); - ex = 0; - } - } - } - in >> k; - cout << b << endl; - out << b->sol(k) << endl; - - delete b; - break; - } - case 'i': - { - bst<int>* b = new bst<int>{}; - in >> n; - int k; - for(int i = 0; i < n; ++i) { - in >> comm; - stringstream tcomm(comm); - int ex= 0; - while(getline(tcomm, comm, ':')) { - if(ex == 0) { - if(comm == "ins") - ex = 1; - else - ex = 2; - } else { - if(ex == 1) - b->insert(stoi(comm)); - else - b->remove(stoi(comm)); - ex = 0; - } - } - } - in >> k; - cout << b << endl; - out << b->sol(k) << endl; - - delete b; - break; - } - } - } - - in.close(); - out.close(); - return 0; -} - diff --git a/I_anno/Programmazione_2/exercises/exam_20_07_20/ex5.cpp b/I_anno/Programmazione_2/exercises/exam_20_07_20/ex5.cpp deleted file mode 100644 index dd8fc98..0000000 --- a/I_anno/Programmazione_2/exercises/exam_20_07_20/ex5.cpp +++ /dev/null @@ -1,285 +0,0 @@ -#include<iostream> -#include<vector> -#include<algorithm> -#include<queue> -#include<stack> -#include<fstream> -#define INF 99999999 -#define W -1 -#define G 0 -#define B 1 - -using namespace std; - -template<class H> -class graph { -public: - graph(int len) : _len{len}, _nodes{0}, _edges{0} { - _k = new H*[len]; - _adj = new vector<int>[len]; - _colors = new int[len]; - _d = new int[len]; - _f = new int[len]; - _p = new int[len]; - - for(int i = 0; i < len; ++i) { - _k[i] = nullptr; - } - } - ~graph() { - delete[] _k; - delete[] _adj; - } - - graph<H>* add_node(H x) { - if(_index(x) > -1) return this; - if(_nodes == _len) return this; - _k[_nodes++] = new H(x); - - return this; - } - graph<H>* add_edge(H u, H v) { - int i = _index(u); - int j = _index(v); - if(i < 0 || j < 0) return this; - - if(find(_adj[i].begin(), _adj[i].end(), j) == _adj[i].end()) { - _adj[i].push_back(j); - } - return this; - } - void print() { - for(int i = 0; i < _nodes; ++i) { - cout << "(" << *_k[i] << ", " << i << "): "; - for(auto const& j : _adj[i]) { - cout << "(" << *_k[j] << ", " << j << ") "; - } - cout << endl; - } - } - void dfsvisit(int u, bool visited[]) { - visited[u] = true; - cout << "(" << *_k[u] << ", " << u << ") "; - for(auto const& i : _adj[u]) { - if(!visited[i]) - dfsvisit(i, visited); - } - } - int dfsvisit(int u) { - int cycle = 0; - _colors[u] = G; - _d[u] = _time++; - - for(auto const& j : _adj[u]) { - if(_colors[j] == W) - cycle |= dfsvisit(j); - } - - _colors[u] = B; - _stack.push(u); - _f[u] = _time++; - return cycle; - } - int dfs() { - int cycle = 0; - for(int i = 0; i < _nodes; ++i) { - _colors[i] = W; - } - _time = 0; - for(int i = 0; i < _nodes; ++i) { - if(_colors[i] == W) - cycle |= dfsvisit(i); - else if(_colors[i] == G) - cycle = 1; - } - for(int i = 0; i < _nodes; ++i) { - cout << "(" << *_k[i] << ", " << i << "): [" << _d[i] << "," << _f[i] << "]" << endl; - } - return cycle; - } - - void top_sort() { - int cycle = dfs(); - if(cycle) { - cout << "cyclic graph!" << endl; - return; - } - int* s = new int[_nodes]; - for(int i = 0; i < _nodes; ++i) s[i] = i; - _sort(s, _nodes, _f); - for(int i = 0; i < _nodes; ++i) { - cout << "(" << s[i] << ", " << _f[s[i]] << ") "; - } - - } - - void bfs(H v) { - int s = _index(v); - if(s < 0) return; - - for(int i = 0; i < _nodes; ++i) { - _colors[i] = W; - _d[i] = INF; - _p[i] = -1; - } - _colors[s] = G; - _d[s] = 0; - queue<int> q; - q.push(s); - while(!q.empty()) { - int u = q.front(); - q.pop(); - for(auto const& j : _adj[u]) { - if(_colors[j] == W) { - _colors[j] = G; - _d[j] = _d[u]+1; - _p[j] = u; - q.push(j); - } - } - _colors[u] = B; - } - for(int i = 0; i < _nodes; ++i) { - cout << "(" << *_k[i] << ", " << i << "): [" << _d[i] << "]" << endl; - } - } - int ssc() { - dfs(); - cout << endl << endl; - bool* visited = new bool[_nodes]; - for(int i = 0; i < _nodes; ++i) - visited[i] = false; - int count = 0; - while(!_stack.empty()) { - int v = _stack.top(); - _stack.pop(); - if(!visited[v]) { - dfsvisit(v, visited); - count++; - cout << endl; - } - } - delete[] visited; - return count; - } -private: - graph<H>* _transpose() { - graph<H>* g = new graph<H>{_len}; - for(int i = 0; i < _nodes; ++i) { - g->add_node(*_k[i]); - } - - for(int i = 0; i < _nodes; ++i) { - for(auto const& j : _adj[i]) { - g->add_edge(j, i); - } - } - - return g; - } - void _sort(int* d, int n, int* s) { - for(int i = -1; i < n; ++i) { - int j = i-1; - while(j > -1 && s[d[j+1]]>s[d[j]]) { - swap(d[s[j+1]], d[s[j]]); - --j; - } - } - } - int _index(H x) { - for(int i = 0; i < _nodes; ++i) - if(*_k[i] == x) return i; - - return -1; - } - stack<int> _stack; - H** _k; - vector<int>* _adj; - int _len, _nodes, _edges; - int* _colors; - int _time; - int* _d; - int* _f; - int* _p; -}; - -int main() { - ifstream in("input.txt"); - ofstream out("output.txt"); - - for(int ts = 0; ts < 100; ++ts) { - int n, e; - in >> n>>e; - string t; - in >> t; - char _t; - switch(t.at(0)){ - case 'd':{ - graph<double>* g = new graph<double>{n}; - double x, y; - for(int i = 0; i < n; ++i) { - in >> x; - g->add_node(x); - } - for(int i = 0; i < e; ++i) { - in >>_t; - in >> x >> y; - in >> _t; - g->add_edge(x, y); - g->add_edge(y, x); - } - g->print(); - cout << endl << endl; - out << g->ssc()<<endl; - delete g; - break; - } - case 'i':{ - - graph<int>* g = new graph<int>{n}; - int x, y; - for(int i = 0; i < n; ++i) { - in >> x; - g->add_node(x); - } - for(int i = 0; i < e; ++i) { - in >>_t; - in >> x >> y; - in >> _t; - g->add_edge(x, y); - g->add_edge(y, x); - } - g->print(); - cout << endl << endl; - out << g->ssc()<<endl; - delete g; - break; - } - case 'c': { - - graph<char>* g = new graph<char>{n}; - char x, y; - for(int i = 0; i < n; ++i) { - in >> x; - g->add_node(x); - } - for(int i = 0; i < e; ++i) { - in >>_t; - in >> x >> y; - in >> _t; - g->add_edge(x, y); - g->add_edge(y, x); - } - g->print(); - cout << endl << endl; - out << g->ssc()<<endl; - delete g; - break; - } - } - } - in.close(); - out.close(); - return 0; -} - diff --git a/I_anno/Programmazione_2/exercises/inizia-con.cc b/I_anno/Programmazione_2/exercises/inizia-con.cc deleted file mode 100644 index 97f0c39..0000000 --- a/I_anno/Programmazione_2/exercises/inizia-con.cc +++ /dev/null @@ -1,33 +0,0 @@ -#include<iostream> -#include<string> -#include<fstream> - -using namespace std; - -string result(string s, char c) { - if(s.at(0) == c) - return s + ' '; - - return ""; -} - -int main() { - ifstream in("input.txt"); - ofstream out("output.txt"); - - for(int ts = 0; ts < 100; ++ts) { - int _; - string s; - char c; - in >> c; - for(int i = 0; i < 3; ++i) { - in >> _ >> s; - out << result(s, c); - } - out << '\n'; - } - - in.close(); - out.close(); - return 0; -} diff --git a/I_anno/Programmazione_2/exercises/inserimento-coda.cc b/I_anno/Programmazione_2/exercises/inserimento-coda.cc deleted file mode 100644 index 6775ca2..0000000 --- a/I_anno/Programmazione_2/exercises/inserimento-coda.cc +++ /dev/null @@ -1,119 +0,0 @@ -#include<iostream> -#include<fstream> - -using namespace std; - -template<class T> -class node { -public: - node(T key, node<T>* next) : _key{key}, _next{next} {} - node(T key) : _key{key}, _next{nullptr} {} - const T& key() const { return _key; } - T& key() { return _key; } - const node<T>*& next() const { return _next; } - node<T>*& next() { return _next; } -private: - T _key; - node<T>* _next; -}; - -template<class T> -class Coda { -public: - Coda() : _head{nullptr}, _tail{nullptr} {} - ~Coda() { - - } - Coda<T>* enqueue(T val) { - if(!_head) { - _head = new node<T>{val, nullptr}; - _tail = _head; - } else { - _tail->next() = new node<T>{val, nullptr}; - _tail = _tail->next(); - } - - return this; - } - node<T>* pop() { - if(!_head) return nullptr; - node<T>* elem = _head; - delete _head; - _head = elem->next(); - - return elem; - } - - bool is_empty() { return _head == nullptr; } -private: - node<T>* _head; - node<T>* _tail; -}; - -int main() { - ifstream in("input.txt"); - ofstream out("output.txt"); - - for(int ts = 0; ts < 100; ++ts) { - string t; - int n; - in >> t; - switch(t.at(0)) { - case 'b': { - Coda<bool>* queue = new Coda<bool>{}; - in >> n; - bool e; - for(int i = 0; i < n; ++i) { - in >> e; - queue->enqueue(e); - } - while(!queue->is_empty()) - out << queue->pop()->key() << ' '; - out << endl; - break; - } - case 'd': { - Coda<double>* queue = new Coda<double>{}; - in >> n; - double e; - for(int i = 0; i < n; ++i) { - in >> e; - queue->enqueue(e); - } - while(!queue->is_empty()) - out << queue->pop()->key() << ' '; - out << endl; - break; - } - case 'c': { - Coda<char>* queue = new Coda<char>{}; - in >> n; - char e; - for(int i = 0; i < n; ++i) { - in >> e; - queue->enqueue(e); - } - while(!queue->is_empty()) - out << queue->pop()->key() << ' '; - out << endl; - break; - } - case 'i': { - Coda<int>* queue = new Coda<int>{}; - in >> n; - int e; - for(int i = 0; i < n; ++i) { - in >> e; - queue->enqueue(e); - } - while(!queue->is_empty()) - out << queue->pop()->key() << ' '; - out << endl; - break; - } - } - } - in.close(); - out.close(); - return 0; -} diff --git a/I_anno/Programmazione_2/exercises/inserimento-pila.cc b/I_anno/Programmazione_2/exercises/inserimento-pila.cc deleted file mode 100644 index 0dbe99b..0000000 --- a/I_anno/Programmazione_2/exercises/inserimento-pila.cc +++ /dev/null @@ -1,116 +0,0 @@ -#include<iostream> -#include<fstream> - -using namespace std; - -template<class T> -class node { -public: - node(T key, node<T>* next) : _key{key}, _next{next} {} - node(T key) : _key{key}, _next{nullptr} {} - const T& key() const { return _key; } - T& key() { return _key; } - const node<T>*& next() const { return _next; } - node<T>*& next() { return _next; } -private: - T _key; - node<T>* _next; -}; - -template<class T> -class Pila { -public: - Pila() : _head{nullptr}{} - ~Pila() { - - } - Pila<T>* push(T val) { - if(!_head) { - _head = new node<T>{val, nullptr}; - } else { - _head = new node<T>{val, _head}; - } - - return this; - } - node<T>* pop() { - if(!_head) return nullptr; - node<T>* elem = _head; - delete _head; - _head = elem->next(); - - return elem; - } - - bool is_empty() { return _head == nullptr; } -private: - node<T>* _head; -}; - -int main() { - ifstream in("input.txt"); - ofstream out("output.txt"); - - for(int ts = 0; ts < 100; ++ts) { - string t; - int n; - in >> t; - switch(t.at(0)) { - case 'b': { - Pila<bool>* stack = new Pila<bool>{}; - in >> n; - bool e; - for(int i = 0; i < n; ++i) { - in >> e; - stack->push(e); - } - while(!stack->is_empty()) - out << stack->pop()->key() << ' '; - out << endl; - break; - } - case 'd': { - Pila<double>* stack = new Pila<double>{}; - in >> n; - double e; - for(int i = 0; i < n; ++i) { - in >> e; - stack->push(e); - } - while(!stack->is_empty()) - out << stack->pop()->key() << ' '; - out << endl; - break; - } - case 'c': { - Pila<char>* stack = new Pila<char>{}; - in >> n; - char e; - for(int i = 0; i < n; ++i) { - in >> e; - stack->push(e); - } - while(!stack->is_empty()) - out << stack->pop()->key() << ' '; - out << endl; - break; - } - case 'i': { - Pila<int>* stack = new Pila<int>{}; - in >> n; - int e; - for(int i = 0; i < n; ++i) { - in >> e; - stack->push(e); - } - while(!stack->is_empty()) - out << stack->pop()->key() << ' '; - out << endl; - break; - } - } - } - in.close(); - out.close(); - return 0; -} diff --git a/I_anno/Programmazione_2/exercises/matrice-adj.cc b/I_anno/Programmazione_2/exercises/matrice-adj.cc deleted file mode 100644 index 7830f97..0000000 --- a/I_anno/Programmazione_2/exercises/matrice-adj.cc +++ /dev/null @@ -1,151 +0,0 @@ -#include<iostream> -#include<vector> -#include<fstream> -#include<sstream> - -using namespace std; - -template<class H> -class matrix_graph { -public: - ~matrix_graph() { - delete[] _m; - delete[] _k; - } - matrix_graph(int len) : _len{len}, _nodes{0}, _edges{0} { - _m = new int*[len]; - _k = new H*[len]; - for(int i = 0; i < len; ++i) { - _m[i] = new int[len]; - _k[i] = nullptr; - for(int j = 0; j < len; ++j) - _m[i][j] = 0; - } - } - - matrix_graph<H>* add_node(H k) { - if(_len == _nodes) return this; // no more space for new nodes - if(_index(k) > -1) return this; // nodes already exists - - _k[_nodes++] = new H(k); - - return this; - } - - matrix_graph<H>* add_edge(H x, H y) { - int i = _index(x); - int j = _index(y); - if(i < 0 || j < 0) return this; - if(!_m[i][j]) { - _m[i][j] = 1; - _edges++; - } - return this; - } - vector<vector<H>> print() { - vector<vector<H>> v; - for(int i = 0; i < _len; ++i) { - v.push_back(vector<H>{*_k[i]}); - vector<H> temp; - for(int j = 0; j < _len; ++j) { - if(_m[i][j]) { - temp.push_back(*_k[j]); - } - } - sort(begin(temp), end(temp)); - for(auto const& j : temp) - v[i].push_back(j); - } - - sort(begin(v), end(v)); - return v; - } -private: - int _len, _nodes, _edges; - int** _m; - H** _k; - int _index(H x) { - for(int i = 0; i < _nodes; ++i) - if(*_k[i] == x) return i; - return -1; - } -}; - -template<class H> -string result(vector<vector<H>> v) { - string s{""}; - ostringstream ss; - for(auto const& i : v) { - s += "("; - for(auto const& j : i) { - ss << j; - s+= ss.str(); - s+= ' '; - ss.str(""); ss.clear(); - } - s.pop_back(); - s += ") "; - } - return s; -} - -int main() { - ifstream in("input.txt"); - ofstream out("output.txt"); - for(int ts = 0; ts < 100; ++ts) { - int n, m; - in >> n >> m; - string t; - in >> t; - if(t == "int") { - matrix_graph<int>* g = new matrix_graph<int>(n); - int x,y; - for(int i = 0; i < n; ++i) { - in >> x; - g->add_node(x); - } - char ex; - for(int i = 0; i < m; ++i) { - in >> ex >> x >> y >> ex; - g->add_edge(x, y); - } - auto v = g->print(); - out << result(v) << endl; - delete g; - } else if(t == "double") { - matrix_graph<double>* g = new matrix_graph<double>(n); - double x,y; - for(int i = 0; i < n; ++i) { - in >> x; - g->add_node(x); - } - char ex; - for(int i = 0; i < m; ++i) { - in >> ex >> x >> y >> ex; - g->add_edge(x, y); - } - auto v = g->print(); - out << result(v) << endl; - delete g; - } else { - matrix_graph<char>* g = new matrix_graph<char>(n); - char x,y; - for(int i = 0; i < n; ++i) { - in >> x; - g->add_node(x); - } - char ex; - for(int i = 0; i < m; ++i) { - in >> ex >> x >> y >> ex; - g->add_edge(x, y); - } - - auto v = g->print(); - out << result(v) << endl; - delete g; - } - } - in.close(); - out.close(); - return 0; -} diff --git a/I_anno/Programmazione_2/exercises/minore.cc b/I_anno/Programmazione_2/exercises/minore.cc deleted file mode 100644 index 677da76..0000000 --- a/I_anno/Programmazione_2/exercises/minore.cc +++ /dev/null @@ -1,27 +0,0 @@ -#include<iostream> -#include<string> -#include<fstream> - -using namespace std; - -int main() { - ifstream in("input.txt"); - ofstream out("output.txt"); - - for(int ts = 0; ts < 100; ++ts) { - string s; - in >> s; - int minor = stoi(s); - for(in >> s; s != "STOP"; in >> s) { - int si = stoi(s); - if(si < minor) - minor = si; - } - - out << minor << '\n'; - } - - in.close(); - out.close(); - return 0; -} diff --git a/I_anno/Programmazione_2/exercises/pop-stack.cc b/I_anno/Programmazione_2/exercises/pop-stack.cc deleted file mode 100644 index 3739450..0000000 --- a/I_anno/Programmazione_2/exercises/pop-stack.cc +++ /dev/null @@ -1,132 +0,0 @@ -#include<iostream> -#include<fstream> - -using namespace std; - -template<class T> -class node { -public: - node(T key, node<T>* next) : _key{key}, _next{next} {} - node(T key) : _key{key}, _next{nullptr} {} - const T& key() const { return _key; } - T& key() { return _key; } - const node<T>*& next() const { return _next; } - node<T>*& next() { return _next; } -private: - T _key; - node<T>* _next; -}; - -template<class T> -class Pila { -public: - Pila() : _head{nullptr}{} - ~Pila() { - - } - Pila<T>* push(T val) { - if(!_head) { - _head = new node<T>{val, nullptr}; - } else { - _head = new node<T>{val, _head}; - } - - return this; - } - node<T>* pop() { - if(!_head) return nullptr; - node<T>* elem = _head; - delete _head; - _head = elem->next(); - - return elem; - } - - bool is_empty() { return _head == nullptr; } -private: - node<T>* _head; -}; - -int main() { - ifstream in("input.txt"); - ofstream out("output.txt"); - - for(int ts = 0; ts < 100; ++ts) { - string t; - int n; - in >> t; - switch(t.at(0)) { - case 'b': { - Pila<bool>* stack = new Pila<bool>{}; - in >> n; - string s; - for(int i = 0; i < n; ++i) { - in >> s; - if(s.at(0) == 'i') { - stack->push(s.at(1) - '0'); - } else { - stack->pop(); - } - } - while(!stack->is_empty()) - out << stack->pop()->key() << ' '; - out << endl; - break; - } - case 'd': { - Pila<double>* stack = new Pila<double>{}; - in >> n; - string s; - for(int i = 0; i < n; ++i) { - in >> s; - if(s.at(0) == 'i') { - stack->push(stod(s.substr(1, s.length()-1))); - } else { - stack->pop(); - } - } - while(!stack->is_empty()) - out << stack->pop()->key() << ' '; - out << endl; - break; - } - case 'c': { - Pila<char>* stack = new Pila<char>{}; - in >> n; - string s; - for(int i = 0; i < n; ++i) { - in >> s; - if(s.at(0) == 'i') { - stack->push(s.at(1)); - } else { - stack->pop(); - } - } - while(!stack->is_empty()) - out << stack->pop()->key() << ' '; - out << endl; - break; - } - case 'i': { - Pila<int>* stack = new Pila<int>{}; - in >> n; - string s; - for(int i = 0; i < n; ++i) { - in >> s; - if(s.at(0) == 'i') { - stack->push(stoi(s.substr(1, s.length()-1))); - } else { - stack->pop(); - } - } - while(!stack->is_empty()) - out << stack->pop()->key() << ' '; - out << endl; - break; - } - } - } - in.close(); - out.close(); - return 0; -} diff --git a/I_anno/Programmazione_2/exercises/prima-maiuscola.cc b/I_anno/Programmazione_2/exercises/prima-maiuscola.cc deleted file mode 100644 index 6273219..0000000 --- a/I_anno/Programmazione_2/exercises/prima-maiuscola.cc +++ /dev/null @@ -1,30 +0,0 @@ -#include<iostream> -#include<string> -#include<fstream> - -using namespace std; - -string result(string s) { - s.at(0) = toupper(s.at(0)); - - return s; -} - -int main() { - ifstream in("input.txt"); - ofstream out("output.txt"); - - for(int ts = 0; ts < 100; ++ts) { - int _; - string s; - for(int i = 0; i < 3; ++i) { - in >> _ >> s; - out << result(s) << ' '; - } - out << '\n'; - } - - in.close(); - out.close(); - return 0; -} diff --git a/I_anno/Programmazione_2/exercises/ripetute.cc b/I_anno/Programmazione_2/exercises/ripetute.cc deleted file mode 100644 index 23d151a..0000000 --- a/I_anno/Programmazione_2/exercises/ripetute.cc +++ /dev/null @@ -1,20 +0,0 @@ -#include<iostream> -#include<string> -#include<fstream> - -using namespace std; - -int main() { - ifstream in("input.txt"); - ofstream out("output.txt"); - - for(int ts = 0; ts < 100; ++ts) { - string s; - in >> s; - out << s+s << '\n'; - } - - in.close(); - out.close(); - return 0; -} diff --git a/I_anno/Programmazione_2/exercises/sol-ripetute.cc b/I_anno/Programmazione_2/exercises/sol-ripetute.cc deleted file mode 100644 index 1518d76..0000000 --- a/I_anno/Programmazione_2/exercises/sol-ripetute.cc +++ /dev/null @@ -1,25 +0,0 @@ -#include<iostream> -#include<string> -#include<fstream> - -using namespace std; - -string result(string s) { - int half = s.length()/2; - return s.substr(0, half); -} - -int main() { - ifstream in("input.txt"); - ofstream out("output.txt"); - - for(int ts = 0; ts < 100; ++ts) { - string s; - in >> s; - out << result(s) << '\n'; - } - - in.close(); - out.close(); - return 0; -} diff --git a/I_anno/Programmazione_2/exercises/sottosequenza.cc b/I_anno/Programmazione_2/exercises/sottosequenza.cc deleted file mode 100644 index 1d7c481..0000000 --- a/I_anno/Programmazione_2/exercises/sottosequenza.cc +++ /dev/null @@ -1,26 +0,0 @@ -#include<iostream> -#include<fstream> - -using namespace std; - -int main() { - ifstream in("input.txt"); - ofstream out("output.txt"); - - for(int ts = 0; ts < 100; ++ts) { - int n; string s; - in >> n >> s; - string tm; - for(int i = 0; i < n; ++i) { - in >> tm; - if(tm.find(s) != string::npos) - out << tm << ' '; - } - out << '\n'; - } - - in.close(); - out.close(); - - return 0; -} diff --git a/I_anno/Programmazione_2/exercises/stringa-inversa.cc b/I_anno/Programmazione_2/exercises/stringa-inversa.cc deleted file mode 100644 index 5c37718..0000000 --- a/I_anno/Programmazione_2/exercises/stringa-inversa.cc +++ /dev/null @@ -1,26 +0,0 @@ -#include<iostream> -#include<fstream> - -using namespace std; - -int main() { - ifstream in("input.txt"); - ofstream out("output.txt"); - - for(int ts = 0; ts < 100; ++ts) { - int n; - in >> n; - for(int i = 0; i < 3; ++i) { - string s; - in >> s; - for(int j = s.length()-1; j > -1; --j) { - out << s.at(j); - } - out << ' '; - } - out << endl; - } - - out.close(); - in.close(); -} |