what is the problem?

Question

#include <iostream>

using namespace std;

int main() {
float x; int y;
cin >> x;
y=x; cout <<y<<endl;
x=x-y;
for(; ;){
x=x*10;
y=x;
if(y==x)
break;
}

cout << x;

return 0;
}

Answer 1

Here, I modified your code a bit, hope this helps.

#include <iostream>

int main()
{
float x;
int y;

std::cin >> x;
std::cout << "float: " << x;
y = static_cast<int>(x);
x -= y;
std::cout << "\nfloat: " << x << "\nint: " << y;

return 0;
}