C Program to calculate the sum of even and odd numbers is given below.

#include <stdio.h> int main() { int number,i,sum_odd=0,sum_even=0; printf("\nEnter the number: "); scanf("%d",&number); for(i=1;i<=number;i++) { if(i%2==0) { sum_even=sum_even+i; } else { sum_odd=sum_odd+i; } } printf("\nThe sum of even number is: %d",sum_even); printf("\nThe sum of odd number is: %d",sum_odd); printf("\n"); return 0; }

**OUTPUT:**

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