Submission #2212183

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Source Code Expand

#include <iostream>
#include <string>

using namespace std;

int main(){
    string S;
    cin >> S;
    int N = S.size();

    int64_t ans = 0;
    for(int i = 1; i <= N; ++i){
        if(S[i-1] == 'U'){
            ans += N - i;
            ans += 2 * (i-1);
        }
        else {
            ans += 2 * (N - i);
            ans += i - 1;
        }
    }

    cout << ans << endl;
}

Submission Info

Judge Result