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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5.     ios::sync_with_stdio(false);
  6.     cin.tie(nullptr);
  7.  
  8.     int t;
  9.     cin >> t;
  10.  
  11.     while (t--) {
  12.         int n;
  13.         string s;
  14.         cin >> n >> s;
  15.  
  16.         int x = 0, y = 0;
  17.         for (char move : s) {
  18.             if (move == 'U') y++;
  19.             else if (move == 'D') y--;
  20.             else if (move == 'L') x--;
  21.             else x++;
  22.         }
  23.  
  24.         if ((abs(x) == 2 && y == 0) || (abs(y) == 2 && x == 0))  cout << "YES\n";
  25.         else  cout << "NO\n";
  26.     }
  27. }
  28.  
Success #stdin #stdout 0.01s 5316KB
comments (?)
stdin
copy 
Standard input is empty
stdout
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NO
NO
https://ideone.com/WKxjEv
language:
C++ (gcc 8.3)
created:
2 days ago
visibility:
public

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