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#include<iostream>
#include<cstdlib>
#include<cmath>
#define DIM 50
using namespace std;
class A {
public:
A(short m, char c) : len{m} {
ptr = new char[len];
srand(time(NULL));
for(int i = 0; i < m; ++i) {
ptr[i] = static_cast<char>(rand()%(c-'a'+1) + 'a');
}
}
A(const A& a) = default;
~A() {
delete ptr;
}
virtual string elab(short a, char c) = 0;
virtual void print(ostream& o) = 0;
short getLen() {
return len;
}
char& operator[](int i) {
return ptr[i];
}
protected:
char get(short i) {
if(i > len)
return ptr[0];
return ptr[i];
}
private:
char* ptr;
short len;
};
class B : public A {
public:
B(short m, double y, char c) : A{m, c}, x{y} {}
double foo(short s) {
return sin(x+s)/log(x+s);
}
string elab(short a, char c) {
string st{};
for(int i = 0; i < getLen(); ++i) {
auto ch = get(i);
if(abs(ch-c) <= a) {
st+=ch;
}
}
return st;
}
void print(ostream& os) {
os << "B ptr=[";
for(int i = 0; i < getLen(); ++i)
os << get(i) << ' ';
os << "], x=" << x << ", elab(5, z)=" << elab(5, 'z');
}
private:
double x;
};
template<typename T>
class C : public A {
public:
C(short n, double k, char c) : A{n, c} {
if(typeid(T) == typeid(short))
y = static_cast<int>(100*k);
else
y = k;
}
string elab(short a, char c) {
string st{};
if(getLen() >= a) {
if(a >= 1) {
for(int i = 0; i < getLen(); st+=c, ++i);
}
} else {
for(int i = 0; i < getLen(); st += get(i++));
}
return st;
}
double g(short w) {
return sin(w+y);
}
void print(ostream& os) {
os << "C<" << typeid(T).name() << "> ptr=[";
for(int i = 0; i < getLen(); ++i)
os << get(i) << ' ';
os << "], y=" << y << ", elab(5, z)=" << elab(5, 'z');
}
private:
T y;
};
ostream& operator<<(ostream& os, A& a) {
a.print(os);
return os;
}
int main() {
srand(time(NULL));
A *vett[DIM];
short cb{}, cc{};
double sumb{}, sumc{};
for(int i=0; i<DIM; i++) {
short n=1+rand()%10;
switch(rand()%3) {
case 0:
{
vett[i]= new B(n, (double) rand()/RAND_MAX, rand()%('z' - 'a' + 1) + 'a');
auto temp = dynamic_cast<B&>(*(vett[i]));
sumb+=temp.foo(5);
++cb;
break;
}
case 1:
vett[i]= new C<double>(n, (double) rand()/RAND_MAX, rand()%('z' - 'a' + 1) + 'a');
break;
case 2:
{
vett[i]= new C<short>(n, (double) rand()/RAND_MAX, rand()%('z' - 'a' + 1) + 'a');
auto temp = dynamic_cast<C<short>&>(*(vett[i]));
sumc+=temp.g(5);
++cc;
}
}
}
for(int i=0; i<DIM; i++) {
cout << *vett[i] << endl;
}
cout << "avg(foo(5))=" << sumb/cb << " ";
cout << "avg(g(5))=" << sumc/cc << endl;
cout << endl;
cout << *vett[0] << endl;
(*vett[0])[0] = '$';
cout << *vett[0] << endl;
return 0;
}
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