Bittijono

input/code.cpp: In function 'int main()':
input/code.cpp:11:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < b.size(); i++) {
                     ~~^~~~~~~~~~
input/code.cpp:15:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < sums.size(); i++) {
                     ~~^~~~~~~~~~~~~
input/code.cpp:16:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int j = i + 1; j < sums.size(); j++) {
                             ~~^~~~~~~~~~~~~

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

int main() {
    string b;
    cin >> b;
    vector <int> sums;
    sums.push_back(0);
    int c = 0;
    for (int i = 0; i < b.size(); i++) {
        sums.push_back(b[i] - 48 + sums[i]);
        // if (b[i] == '0') ++c;
    }
    for (int i = 0; i < sums.size(); i++) {
        for (int j = i + 1; j < sums.size(); j++) {
            if ((sums[j] - sums[i]) % 2 == 0) {
                ++c;
            }
        }
    }
    cout << c << "\n";
    return 0;
}

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 1

Verdict: ACCEPTED

Test 3

Group: 1

Verdict: ACCEPTED

Test 4

Group: 1

Verdict: ACCEPTED

Test 5

Group: 1

Verdict: ACCEPTED

Test 6

Group: 1

Verdict: ACCEPTED

Test 7

Group: 1

Verdict: ACCEPTED

Test 8

Group: 2

Verdict: ACCEPTED

Test 9

Group: 2

Verdict: ACCEPTED

Test 10

Group: 2

Verdict: ACCEPTED

Test 11

Group: 2

Verdict: ACCEPTED

Test 12

Group: 2

Verdict: ACCEPTED

Test 13

Group: 2

Verdict: ACCEPTED

Test 14

Group: 2

Verdict: ACCEPTED

Test 15

Group: 3

Verdict: TIME LIMIT EXCEEDED

Test 16

Group: 3

Verdict: TIME LIMIT EXCEEDED

Test 17

Group: 3

Verdict: TIME LIMIT EXCEEDED

Test 18

Group: 3

Verdict: TIME LIMIT EXCEEDED

Test 19

Group: 3

Verdict: TIME LIMIT EXCEEDED

Test 20

Group: 3

Verdict: ACCEPTED

Test 21

Group: 3

Verdict: ACCEPTED