Bittijono

input/code.cpp: In function 'int main()':
input/code.cpp:16:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int it = 0; it < ui.length(); it++) {
                      ~~~^~~~~~~~~~~~~

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

using namespace std;

int main() {
    string ui;
    cin >> ui;
    int ykkoset = 0;
    int parit = 0;
    int ans = 0;
    for (int it = 0; it < ui.length(); it++) {
        if (ui[it] == '1') {
            ykkoset += 1;
        }
        if (ykkoset % 2 == 0) {
            parit += 1;
            ans += parit;
        }
    }
    
    ykkoset = 0;
    parit = 0;
    for (int i = ui.length()-1; i >= 0; i--) {
        if (ui[i] == '1') {
            ykkoset += 1;
        }
        if (ykkoset % 2 == 0) {
            ans += 1;
            ans += parit;
        }
    }
    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