657. Judge Route Circle

static int wing=[]()
{
    std::ios::sync_with_stdio(false);
    cin.tie(NULL);
    return 0;
}();

class Solution 
{
public:
    bool judgeCircle(string moves) 
    {
        int count1=0,count2=0;
        for(char c:moves)
        {
            if(c=='U')
                count1++;
            else if(c=='D')
                count1--;
            else if(c=='L')
                count2++;
            else
                count2--;
        }
        return count1==0&&count2==0;
    }
};

很简单