Codeforces Round #156 (Div. 2) B. Code Parsing

题目：http://codeforces.com/problemset/problem/255/B

这题被ljc剧透了...

#include <iostream>
#include <stdio.h>
#include <cmath>

using namespace std;

int main()
{
    char c;
    int xnum=0,ynum=0;
    while((c=cin.get())!=EOF)
    {
        if(c=='x')  xnum++;
        else if(c=='y') ynum++;
    }
    int t=abs(xnum-ynum);
    if(xnum>ynum)
        for(int i=0;i<t;i++)
            cout<<'x';
    else
        for(int i=0;i<t;i++)
            cout<<'y';
    return 0;
}