It keep saying WRONG ANSWER. Why? Here is the code that i have
submitted.
/////1068
#include <iostream>
int main () {
    int a,suma;
    suma = 0;
    std::cin>>a;
    if (a<10000){
        if (a > 0){for(int i=1; i<=a; i++){
    suma = suma + i;
        }}
else for (int k=1;a<=k;a++)
        suma = suma + a;
    std::cout<<suma;
    }
    return 0;

}

The input consists of a single integer N that is not greater than 10000 by
it's absolute value



(abs(a)<=10000) not (a<10000)