LRUD Instructions 2

#include <bits/stdc++.h>
using namespace std;

#define int long long

signed main()
{
    int n;
    string s;
    int x = 0 , y = 0;
    cin >> n;
    cin >> s;

    map<pair<int , int> , bool> visited;
    visited[{0 , 0}] = true;
    for(int i = 0; i < n; i++){
        if(s[i] == 'L')
            x--;
        if(s[i] == 'R')
            x++;
        if(s[i] == 'D')
            y--;
        if(s[i] == 'U')
            y++;
        if(visited[{x , y}]){
            cout << "Yes" << endl;
            return 0;
        }
        visited[{x , y}] = true;
    }
    cout << "No" << endl;

}