Answer to Question #320543 in C for Pratik

Question

Write a loop that will calculate the sum of every third integer beginning with i = 2 (i-e. calculate the sum of 2+5+8+11+) for all values of i that are less than 100, Write the loop in

two ways:

(1) Using a do---- while statement.

() Using a for statement.

Answer 1

#include <stdio.h>

int main()
{
    int i, sum;
    //  Using a do---- while statement
    sum = 0;
    i = 0;
    do{
        if (i % 3 == 0)
            sum += (i+2);
        i++;    
    } while (i<98);
    printf("Sum = %d\n", sum);
    //  Using a for statement
    sum = 0;
    for (i=0; i<98; i++)
        if (i % 3 == 0)
            sum += (i+2);
    printf("Sum = %d", sum);
}