hdu 1850
地址:http://acm.hdu.edu.cn/showproblem.php?pid=1850
题意:中文……
mark:Nim游戏,参见http://baike.baidu.com/view/1101962.htm
代码:
#include <stdio.h> int main() { int m,a[110]; int i,n,sum; while(scanf("%d", &m), m) { for(i = n = 0; i < m; i++) { scanf("%d", a+i); n ^= a[i]; } for(i = sum = 0; i < m; i++) if((a[i] ^ n) < a[i]) sum++; printf("%d\n", sum); } return 0; }