Bittijono

input/code.cpp: In function 'int main()':
input/code.cpp:12:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (long i = 0; i < s.size(); ++i) {
                      ~~^~~~~~~~~~
input/code.cpp:13:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (long j = 1; j <= s.size() - i; ++j) {
                          ~~^~~~~~~~~~~~~~~

#include <iostream>
#include <string>
#include <bitset>

using namespace std;

string s;
long r;

int main() {
    cin >> s;
    for (long i = 0; i < s.size(); ++i) {
        for (long j = 1; j <= s.size() - i; ++j) {
            bitset<500000> b(s, i, j);
            if (b.count() % 2 == 0) {
                ++r;
            }
        }
    }
    cout << r << '\n';
}

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: TIME LIMIT EXCEEDED

Test 9

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 10

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 11

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 12

Group: 2

Verdict: TIME LIMIT EXCEEDED

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