C program to find the sum of first n natural numbers.

C Programming Language / Loop control in C Language

5691

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Program:

#include<stdio.h>
int main()
{
    int i,n,s=0;
    printf("Enter value of n:");
    scanf("%d",&n);
    for(i=1;i<=n;i++)
    {
        s=s+i;
    }
    printf("Sum = %d \n",s);
    return 0;
}

Output:

Enter value of n:10
Sum = 55
Press any key to continue . . .

Explanation:

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