ZOJ 2507 Let's play a game

题目链接：http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemId=1507

MisereNim博弈。代码如下：

 //============================================================================
 // Name        : test.cpp
 // Author      :
 // Version     :
 // Copyright   : Your copyright notice
 // Description : Hello World in C++, Ansi-style
 //============================================================================

 #include <iostream>
 #include <math.h>
 #include <stdio.h>
 #include <cstdio>
 #include <algorithm>
 #include <string.h>
 #include <string>
 #include <sstream>
 #include <cstring>
 #include <queue>
 #include <vector>
 #include <functional>
 #include <cmath>
 #include <set>
 #define SCF(a) scanf("%d", &a)
 #define IN(a) cin>>a
 #define FOR(i, a, b) for(int i=a;i<b;i++)
 #define Infinity 999999999
 #define NInfinity -999999999
 #define PI 3.14159265358979323846
 #define MAXN 1000000005
 #define RATIO (sqrt(5.0)+1.0)/2.0
 typedef long long Int;
 using namespace std;

 int main()
 {
     int t;
     int n;
     SCF(t);
     while (t--)
     {
         SCF(n);
         int ans = ;
         int num;
         bool flag = false;
         FOR(i, , n)
         {
             SCF(num);
             if (num > )
                 flag = true;
             ans = ans^num;
         }
         if (flag)
         {
             if (ans == )
                 printf("2\n");
             else
                 printf("1\n");
         }
         else
         {
             if (ans == )
                 printf("1\n");
             else
                 printf("2\n");
         }
     }
     return ;
 }