Bittijono

input/code.cpp: In function 'int main()':
input/code.cpp:14:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < ui.length(); i++) {
                     ~~^~~~~~~~~~~~~
input/code.cpp:27:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < ui.length(); i++) {
                     ~~^~~~~~~~~~~~~

#include <iostream>
#include <vector>
#include <string>
#include <map>
#include <math.h>

using namespace std;

int main() {
    string ui;
    cin >> ui;
    vector<int> ykkoset;
    for (int i = 0; i < ui.length(); i++) {
        ykkoset.push_back(0);
    }
    
    int yk = 0;
    for (int it = ui.length()-1; it >= 0; it--) {
        ykkoset[it] = yk;
        if (ui[it] == '1') {
            yk += 1;
        }
    }
    
    int ans = 0;
    for (int i = 0; i < ui.length(); i++) {
        if (ui[i] == '1') {
            ans += int(ykkoset[i]/2);
        } else {
            ans += ykkoset[i];
        }
    }
    cout << ans << endl;
    return 0;
}

Test 1

Group: 1

Verdict: WRONG ANSWER

Test 2

Group: 1

Verdict: WRONG ANSWER

Test 3

Group: 1

Verdict: WRONG ANSWER

Test 4

Group: 1

Verdict: WRONG ANSWER

Test 5

Group: 1

Verdict: WRONG ANSWER

Test 6

Group: 1

Verdict: WRONG ANSWER

Test 7

Group: 1

Verdict: ACCEPTED

Test 8

Group: 2

Verdict: WRONG ANSWER

Test 9

Group: 2

Verdict: WRONG ANSWER

Test 10

Group: 2

Verdict: WRONG ANSWER

Test 11

Group: 2

Verdict: WRONG ANSWER

Test 12

Group: 2

Verdict: WRONG ANSWER

Test 13

Group: 2

Verdict: WRONG ANSWER

Test 14

Group: 2

Verdict: ACCEPTED

Test 15

Group: 3

Verdict: WRONG ANSWER

Test 16

Group: 3

Verdict: WRONG ANSWER

Test 17

Group: 3

Verdict: WRONG ANSWER

Test 18

Group: 3

Verdict: WRONG ANSWER

Test 19

Group: 3

Verdict: WRONG ANSWER

Test 20

Group: 3

Verdict: WRONG ANSWER

Test 21

Group: 3

Verdict: ACCEPTED