C program to calculate sum of first n odd numbers

C program to calculate sum of first n odd numbers

Output:

To find sum of first 'n' odd numbers, Enter the value of 'n': 3
The sum of first 3 odd numbers is: 9

Implementation:

#include <stdio.h> int main(void) { int i,n,sum=0,k=1; printf("To find sum of first 'n' odd numbers, Enter the value of 'n':\n"); scanf("%d",&n); for(i=1;i<=n;i++) { sum += k; k += 2; } printf("The sum of first %d odd numbers is: %d",n,sum); return 0; }