E29940: 机器猫斗恶龙

greedy, http://cs101.openjudge.cn/practice/29940/

#include<bits/stdc++.h>
using namespace std;
int n,ans,a,sum=-1;
int main(){
    scanf("%d",&n);
    for(int i=1;i<=n;i++){
        scanf("%d",&a);
        sum+=a;
        ans=min(ans,sum);
    }
    printf("%d",-ans);
    return 0;
}