【POJ 1704】 Georgia and Bob

【题目链接】

           http://poj.org/problem?id=1704

【算法】

            阶梯博弈

【代码】

           

#include <algorithm>  
#include <bitset>  
#include <cctype>  
#include <cerrno>  
#include <clocale>  
#include <cmath>  
#include <complex>  
#include <cstdio>  
#include <cstdlib>  
#include <cstring>  
#include <ctime>  
#include <deque>  
#include <exception>  
#include <fstream>  
#include <functional>  
#include <limits>  
#include <list>  
#include <map>  
#include <iomanip>  
#include <ios>  
#include <iosfwd>  
#include <iostream>  
#include <istream>  
#include <ostream>  
#include <queue>  
#include <set>  
#include <sstream>  
#include <stdexcept>  
#include <streambuf>  
#include <string>  
#include <utility>  
#include <vector>  
#include <cwchar>  
#include <cwctype>  
#include <stack>  
#include <limits.h> 
using namespace std;
#define MAXN 1010

int i,n,T,s;
int a[MAXN];

int main() 
{
        
        scanf("%d",&T);
        while (T--)
        {
                scanf("%d",&n);
                for (i = 1; i <= n; i++) scanf("%d",&a[i]);
                a[0] = 0;
                sort(a+1,a+n+1);
                if (n & 1)
                {
                        s = 0;
                        for (i = 1; i <= n; i++) 
                        {
                                if (i % 2) 
                                        s ^= (a[i] - a[i-1] - 1);
                        }
                        if (s) printf("Georgia will win
");
                        else printf("Bob will win
");
                } else
                {
                        s = 0;
                        for (i = 2; i <= n; i++) 
                        {
                                if (i % 2 == 0)
                                        s ^= (a[i] - a[i-1] - 1);
                        }
                        if (s) printf("Georgia will win
");
                        else printf("Bob will win
");
                }
        }
        
        return 0;
    
}