问题:
代码:
#include<stdio.h>
int main()
{
int a[20001];
int b[20001];
int c[20001];
int n,i;
while(scanf("%d",&n)&&n!=0)
{
n=n*2;
int sum=0;
for(i=1; i<=n; i++)
{
scanf("%d",&a[i]);
b[i]=b[i-1]+a[i];
}
for( i=1; i<=n; i++)
{
c[i]=b[n]-b[n-i];
}
int x1=1,x2=1;
while(x1<=n&&x2<=n)
{
if(b[x1]==c[x2])
{
sum++;
x