Program for Subtraction of two input number using 'C'.
#include <stdio.h>
#include<conio.h>//not necessary
void main()
{
int num1, num2, sub; //declaration
printf("Enter first number: "); //for input
scanf("%d", &num1);
printf("Enter second number: "); //for input
scanf("%d", &num2);
sub = num1 - num2; //substraction
printf("Substraction of the entered numbers: %d", sub);
clrscr();//not necessary
}