Submission #1612025

---

Source Code Expand

#include<bits/stdc++.h>
typedef long long ll;
using namespace std;
int INF = 1e9;
int MOD = 1e9+7;
main(){
    string S;
    cin >> S;
    int N = S.length();
    ll cnt = 0;
    for(int i = 0;i < N;i++){
        if(S[i] == 'U')cnt += N-i-1 + i*2; 
        else cnt += (N-i-1)*2 + i;
    }
    cout << cnt << endl;
}

Submission Info

Judge Result