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用异或看取得的值是否为0判断
思想换没搞懂
#include<stdio.h>
int main()
{
    int ans,n,a;
    while(scanf("%d",&n),n){
        ans=0;
        while(n--){
            scanf("%d",&a);
            ans=ans^a;
        }
        if(ans==0) printf("Grass Win!\n");
        else printf("Rabbit Win!\n");
    }
    return 0;
}
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原文地址:http://blog.csdn.net/a197p/article/details/46336141