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#include<iostream>
#include<cmath>
#include<typeinfo>
#define DIM 30
using namespace std;
class A {
public:
A(short m, int a, int b) : len(m) {
srand(time(NULL));
vec = new int[m];
for(int i = 0; i < m; ++i) {
vec[i] = rand()%b + a;
}
}
~A() {
delete vec;
}
virtual double foo(short a) = 0;
short getLen() {
return len;
}
virtual void print(ostream& o) = 0;
int operator()(int i1, int i2) {
if(i1 < 0) i1 = 0;
if(i2 > len) i2 = len;
int sum = 0;
for(int i = i1; i < i2; ++i) {
sum+=vec[i];
}
return sum;
}
protected:
int get(short i) {
return vec[i];
}
private:
int* vec;
short len;
};
class B : public A {
public:
B(short m, int x, int y) : A(m, x, y) {
srand(time(NULL));
short rand_num = rand()%m;
p = get(rand_num);
}
double foo(short a) {
return static_cast<double>(prod(a)) / static_cast<double>(p);
}
void print(ostream& os) {
os << "vec=[";
for(int i = 0; i < getLen(); ++i) {
os << get(i) << ' ';
}
os << "], p=" << p;
}
protected:
int prod(short s) {
int index = s%getLen();
int _prod = 1;
for(int i = index; i < getLen(); ++i) {
_prod *= get(i);
}
return _prod;
}
private:
int p;
};
template<class T> class C : public A {
public:
C(short n, int a, int b) : A(n, a, b) {
if(typeid(T) == typeid(short)) {
x = n;
} else {
x = log(1+pow(sin(n), 2));
}
}
double foo(short r) {
return g(r);
}
T g(T k) {
return 2*x*(k+1);
}
void print(ostream& os) {
os << "vec=[";
for(int i = 0; i < getLen(); ++i) {
os << get(i) << ' ';
}
os << "], x=" << x;
}
private:
T x;
};
ostream& operator<<(ostream& os, A& a) {
os << typeid(a).name() << ", ";
a.print(os);
return os;
}
int main() {
srand (time(0));
A* vett[DIM];
double sum_cd = 0;
short num_cd = 0;
for(int i=0; i < DIM; ++i) {
short n = 1+rand()%10;
switch ( rand ()%3) {
case 0:
vett[i]= new B(n, rand()%5 + 1, rand()%10 + 5);
break ;
case 1: {
vett[i]= new C<double>(n, rand()%5 + 1, rand()%10 + 5);
++num_cd;
C<double>& cc = dynamic_cast<C<double>& >(*(vett[i]));
sum_cd += cc.g(5);
break ;
}
case 2:
vett[i]= new C<short>(n, rand()%5 + 1, rand()%10 + 5);
}
}
double max_foo = -100000;
for(int i = 0; i < DIM; ++i) {
auto foo3 = vett[i]->foo(3);
if(foo3 > max_foo) {
max_foo = foo3;
}
cout << (*(vett[i])) << ", foo(3)=" << foo3 <<endl;
}
// max_foo => Valore maggiore calcolato per foo(3)
// sum_cd / num_cd => media valori g(5) per C<Double>
cout << (*vett[0])(0, 2) << endl;
return 0;
}
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