// Program: diff.cpp
// Check subtraction of two floating point numbers
#include
int main()
{
// Input
float n1;
std::cout << "First number =? ";
std::cin >> n1;
float n2;
std::cout << "Second number =? ";
std::cin >> n2;
float d;
std::cout << "Their difference =? ";
std::cin >> d;
// Computation and output
std::cout << "Computed difference - input difference = "
<< n1 - n2 - d << ".\n";
return 0;
}