C Exercises: Sum of n odd numbers starting from m

Last update on September 19 2025 12:45:14 (UTC/GMT +8 hours)

Compute sum of nnn odd numbers starting from mmm

Write a C program that reads two integers m, n and computes the sum of n odd numbers starting from m.

Sample Solution:

C Code:

`
#include <stdio.h>

int main () {
    int m, n, i, j, k, sum_odd_nums = 0;

    // Prompt user for input
    printf("\nInput two integers (m, n):\n");

    // Read two integer values 'm' and 'n' from user
    scanf("%d %d", &m, &n);

    // Print a message indicating what the program will do
    printf("\nSum of %d odd numbers starting from %d: ",n,m);

    // Loop to find and sum 'n' odd numbers starting from 'm'
    for (k = 0, j = m; k < n; j++) {

        // Check if 'j' is odd
        if (j % 2 != 0) {
            sum_odd_nums += j; // Accumulate odd numbers
            k++; // Increment the count of odd numbers found
        }
    }

    // Print the sum of odd numbers
    printf("\n%d", sum_odd_nums);

    return 0; // End of program
}

Sample Output:

Input two integes (m, n):
65
5

Sum of 5 odd numbers starting from 65:
345

Flowchart:

C Programming Flowchart: Sum of n odd numbers starting from m.

For more Practice: Solve these Related Problems:

Write a C program to calculate the sum of n consecutive odd numbers starting from m using a loop.
Write a C program to generate the odd number sequence starting from m and compute their sum with a for-loop.
Write a C program to accumulate the sum of n odd numbers using recursion from a starting value m.
Write a C program to compute the sum of odd numbers using the arithmetic series formula after generating the sequence.

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