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C Program To Find The Sum Of Odd And Even Numbers From 1 To N.

The C program calculates the sum of odd numbers and sum of even numbers from 1 to N.

It first separates the odd and even numbers from 1 to N, and then adds all odd and even numbers separately. The program can be successfully compiled and run on any system:

#include <stdio.h>

int main() {
int i, N, oddSum = 0, evenSum = 0;

printf("Enter the value of N: ");
scanf ("%d", &N);

for (i=1; i <=N; i++) {

if (i % 2 == 0)
evenSum = evenSum + i;
else
oddSum = oddSum + i; 
}

printf ("\nSum Of Odd Numbers from 1 to N = %d\n", oddSum);
printf ("\nSum Of Even Numbers from 1 to N = %d\n", evenSum);
}
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