C program to find Sum of natural numbers from 1 to n
#include<stdio.h>
int main()
{
int i,n,sum=0;
printf("Enter Number 1 to n for Sum: ");
scanf("%d",&n);
for(i=1;i<=n;i++)
{
sum = sum + i;
}
printf("%d",sum);
return 0;
}
Output
Enter Number 1 to n for Sum: 10
55