657. Judge Route Circle

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

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

很简单