My calculator displays an integer why?

Question

C++ / C#

My calculator displays an integer. And as planned, it should display a number with a comma and round up to 3 digits after the decimal point. I already changed to double and float, but I can’t % with them. And I need 123.656 -> 123/656 = 5.333

#include

using namespace std;

int main()
{
float a = 123.656f; // Change
int b, c, d;
float y; // Change
b = a * 1000;
c = b % 1000; // After the comma
d = b / 1000; // Before the comma

y = c / d;

cout << y ;
}

Answer 1

y = c / d;
You are dividing an integer by an integer. In the C language, in this case, there is an integer division. In order for the result to be a float, you need to convert one of the operands to float / double. You can either write it explicitly, or just add 0.0:
y = (c + 0.0) / d;