Submission #1311253

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Source Code Expand

#include <iostream>
#include <algorithm>
#include <string>

#define REP(i,a,b) for(int i=int(a);i<int(b);i++)

using namespace std;

typedef long long int lli;

int main () {
    string s;
    cin >> s;
    lli ans = 0;
    lli N = s.size();
    REP (i, 0, N) {
        if (s[i] == 'U') {
            ans += (N - i - 1) + i * 2;
        } else {
            ans += (N - i - 1) * 2 + i;
        }
    }
    cout << ans << endl;
    return 0;
}

Submission Info

Judge Result