Sum of First Odd Numbers in C from 1 to N

Learn about Sum of First Odd Numbers in C from 1 to N in the below code example. Also refer the comments in the code snippet to get a detailed view about what’s actually happening.

Contents

Sum of First Odd Numbers in C from 1 to N

Program:

#include<stdio.h>
int main()
{
  int n, sum=0;

  printf("Enter n value: ");
  scanf("%d",&n);

  for(int i=1; i<=n; i++)
  {
    if(i%2!=0) sum += i;
  }

  printf("Sum of odd numbers from 1 to %d is: %d", n, sum);

  return 0;
}

Output:

Enter n value: 50
Sum of odd numbers from 1 to 50 is: 625

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