C program to add the even numbers within a given number.
C Program
#include <stdio.h> #include <conio.h> void main() { int i,n; unsigned long sum=0; clrscr(); printf("\nENTER A NUMBER: "); scanf("%d",&n); for(i=2;i<=n;i+=2) { sum=sum+i; } printf("\nSUM OF THE EVEN NUMBERS BETWEEN 1 TO %d IS %lu",n,sum); getch(); }