#include <iostream>
#include <cmath>
void foo(double x, double y)
{
double a=std::cos(x);
double b=std::cos(y);
if (a != b)
std::cout << "Я знаю точно невозможное возможно";
}
int main()
{
foo(1.0, 1.0);
return 0;
}
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