Codeforces Round #235 (Div. 2), problem: (A) Vanya and Cards solution

Codeforces Round #235 (Div. 2), problem: (A) Vanya and Cards: http://codeforces.com/contest/401/problem/A

Codeforces Round #235 (Div. 2), problem: (A) Vanya and Cards solution: http://ideone.com/d0UFV7

#include <iostream>
#include <cstdio>
using namespace std;

int main() {
    int n, x, b, cnt, a;
    b=cnt=0;
    scanf("%d%d", &n, &x);
    for(int i=0; i<n; i++) {
        scanf("%d", &a);
        b+=a;
    }
    while(b!=0) {
        if(b>0) {
            if(b-x>0)  {
                cnt++;
                b-=x;
            }
            else {
                cnt++;
                b=0;
            }
        }
        else {
            if(b+x<0) {
                cnt++;
                b+=x;
            } 
            else {
                cnt++;
                b=0;
            }
        }
    }
    printf("%d\n", cnt);
    return 0;
}