C program to find Sum of even numbers between 1 to n given range
#include<stdio.h>
int main()
{
int i,start,end,sum=0;
printf("Enter Start number for Sum: ");
scanf("%d",&start);
printf("Enter End number for Sum: ");
scanf("%d",&end);
if(start%2!=0)
{
start++;
}
for(i=start;i<=end;i+=2)
{
sum += i;
}
printf("Sum of Even number: %d",sum);
return 0;
}
Output
Enter Start number for Sum: 11
Enter End number for Sum: 25
Sum of Even number: 126