Sum_Odd_Sample.c

#include<stdio.h>

int main()
{
    int sum;
    int counter;
    int rest;

    sum = 0;
    counter = 0;

    for(counter=0; counter <= 1000; counter++){
        rest = counter%2;
        if ( rest > 0){
            sum = counter + sum;
        }
    }

    printf("Result: %d", sum);

    return 0;
}