Leetcode657. Judge Route Circle

一直刷水题，从未进步过。

class Solution {
public:
    bool judgeCircle(string moves) {
        int x=0,y=0;
        for(int i=0;i<moves.size();i++)
        {
            if(moves[i]=='L'){
                x-=1;
            }
             if(moves[i]=='R'){
                x+=1;
            }
             if(moves[i]=='U'){
                y+=1;
            }
             if(moves[i]=='D'){
                y-=1;
            }
        }
        if(x==0&&y==0)return true;
        else return false;
    }
};