B. Painting Eggs 夜

http://codeforces.com/contest/282/problem/B

很水的题呀，结果比赛时没有想出来

直接上代码：

#include<iostream>
#include<cstdio>
#include<cstring>
#include<cmath>
#include<algorithm>
#include<vector>
#include<set>
#include<map>
#include<string>
#include<queue>
#include<stack>
#include <iomanip>
using namespace std;
#define LL long long
#define ULL unsigned long long
const double eps=1e-6;
const int INF=0x3f3f3f3f;
int main()
{
    //freopen("data.in","r",stdin);
    int n;
    while(cin>>n)
    {
        int a,b,A=0,B=0;
        while(n--)
        {
            cin>>a>>b;
            if(abs(A+a-B)<=500)
            {cout<<"A";A+=a;}
            else
            {cout<<"G";B+=b;}
        }
        cout<<endl;
    }

    return 0;
}