Start: Jul, 01, 2019 08:30:00
2019年度暑期短学期第四天
End: Jul, 01, 2019 11:30:00
Time elapsed:
Time remaining:

Problem_ID: D
Result: Accepted
Time: 4ms
Memory: 1120kB
Author: 2018212212244
In contest: 1277

#include<stdio.h>
int main(){
	int n,i,x,a,sum,y;
	while(scanf("%d",&n)!=EOF){
		sum=0;
		y=0;
	for(i=0;i<n;++i){
		scanf("%d",&a);
		if(a>0){
			a=a/2;
	    }
		sum+=a;
		if(sum<0){
			++y;
		}
	}
	printf("%d\n",y);
	}
	return 0;
}