1 files changed, 0 insertions, 164 deletions
diff --git a/1_anno/Programmazione_2/data_structures/graph.cc b/1_anno/Programmazione_2/data_structures/graph.cc
deleted file mode 100644
index 12837be..0000000
--- a/1_anno/Programmazione_2/data_structures/graph.cc
+++ /dev/null
@@ -1,164 +0,0 @@
-#include<iostream>
-#include<vector>
-
-using namespace std;
-
-template<class H>
-class node {
-public:
-    explicit node(H key, node<H>* next) : _key{key}, _next(next) {}
-    const H& key() const { return _key; }
-    H& key() { return _key; }
-    const node<H>*& next() const { return _next; }
-    node<H>*& next() { return _next; }
-private:
-    H _key;
-    node<H>* _next;
-};
-
-template<class H>
-class list {
-public:
-    list() : _head{nullptr} {}
-    ~list() {
-        while(_head) {
-            auto tmp = _head;
-            _head = _head->next();
-            delete tmp;
-        }
-    }
-    list<H>* push(H val) {
-        auto iter = _head;
-        while(iter && iter->next())
-            iter = iter->next();
-
-        if(!iter)
-            _head = new node<H>{val, nullptr};
-        else
-            iter->next() = new node<H>{val, nullptr};
-
-        return this;
-    }
-    list<H>* pop(H val) {
-        auto elem = search(val);
-        if(!elem)
-            return this;
-
-        auto iter = _head;
-        // This is the case when head is the element we want to pop
-        if(iter == elem) {
-            delete _head;
-            _head = nullptr;
-            return this;
-        }
-
-        while(iter && iter->next() != elem)
-            iter = iter->next();
-
-        auto tmp = iter->next();
-        if(iter->next()->next()) { 
-            iter->next() = iter->next()->next();
-        } else { // the element we want to pop is the tail
-            iter->next() = nullptr;
-        }
-        delete tmp;
-
-        return this;
-    }
-    void print() {
-        auto iter = _head;
-        while(iter) {
-            cout << iter->key() << ' ';
-            iter = iter->next();
-        }
-    }
-    vector<H> as_vector() {
-        vector<H> v;
-        auto iter = _head;
-        while(iter) {
-            v.push_back(iter->key());
-            iter = iter->next();
-        }
-        return v;
-    }
-    node<H>* search(H val) {
-        auto iter = _head;
-        while(iter && iter->key() != val) {
-            iter = iter->next();
-        }
-
-        return iter;
-    }
-private:
-    node<H>* _head;
-};
-
-template<class H>
-class graph {
-public:
-
-private:
-    int _len, _nodes, _edges;
-    H **_k;
-    list<int> **_adj;
-    int _index(H val) {
-        for(int i = 0; i < _nodes; ++i)
-            if(*_k[i] == val) return i;
-
-        return -1;
-    }
-public:
-    graph(int len) : _len{len}, _nodes{0}, _edges{0} {
-        _k = new H*[len];
-        _adj = new list<int>*[_len];
-        for(int i = 0; i < _len; ++i) {
-            _k[i] = nullptr;
-            _adj[i] = new list<int>{};
-        }
-    }
-
-    graph<H>* add_node(H k) {
-        if(_nodes == _len) return this;
-        if(_index(k) >= 0) return this; // node is already there
-
-        _k[_nodes++] = new H(k);
-
-        return this;
-    }
-
-    graph<H>* add_edge(H x, H y) {
-        int i = _index(x);
-        int j = _index(y);
-        if(i < 0 || j < 0) return this;
-
-        if(!_adj[i]->search(j)) {
-            _adj[i]->push(j);
-            _edges++;
-        }
-
-        return this;
-    }
-
-    void print() {
-        for(int i = 0; i < _nodes; ++i) {
-            cout << "(" << i << ", " << *_k[i] << "): ";
-            for(auto const& j : _adj[i]->as_vector())
-                cout << "(" << j << ", " << *_k[j] << "), ";
-            cout << '\n';
-        } 
-    }
-};
-
-
-int main() {
-    graph<string>* g = new graph<string>(5);
-    g->add_node("hello")->add_node("greg")->add_node("yes");
-    g->add_node("nop")->add_node("ok");
-    g->add_edge("hello", "ok");
-    g->add_edge("ok", "yes")->add_edge("yes", "ok")->add_edge("yes", "yes");
-    g->add_edge("yes", "nop");
-    g->print();
-
-    delete g;
-    return 0;
-}