Submission #8597424

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Source Code Expand

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

int main() {
  string S; cin >> S;
  int N = S.size();
  vector<int> u(N), d(N);
  for (int i = 0; i < N; i++) {
    u.at(i) = N-1-i;
    d.at(i) = i;
  }
  long long ans = 0;
  for (int i = 0; i < N; i++) {
    if (S.at(i) == 'U') ans += d.at(i) * 2 + u.at(i);
    else ans += d.at(i) + u.at(i) * 2;
  }
  cout << ans << endl;
}

Submission Info

Judge Result