1015 - Brush (I) (Light OJ)

#include<iostream>
#include<cstdio>
#include<cmath>
#include<cstring>
#include<algorithm>
#include<vector>
#include<map>
using namespace std;
#define pf printf
#define sf scanf
#define loop(i, n) for(i=0; i<(n); i++)
#define MAX 100

int main()
{
    int test, t;
    int n, st, sum;
    sf("%d", &test);
    for(t=1; t<=test; t++)
    {
        sf("%d", &n);
        sum=0;
        while(n--)
        {
            sf("%d", &st);
            if(st<=0)
                continue;
            sum+=st;
        }
        pf("Case %d: %d\n", t, sum);
    }
    return 0;
}