Sum

input/code.cpp: In function 'int main()':
input/code.cpp:12:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0; i<s.size(); i++){
                  ~^~~~~~~~~

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
ifstream fin("AAtest.in.txt");
string s;
ll mit,pa[2],pal,su;

int main(){
    ios::sync_with_stdio(0);
    getline(cin,s);
    pal=1;
    for(int i=0; i<s.size(); i++){

        if(s[i]=='1'){//cout<<pal<<" "<<mit<<" "<<pa[(mit+1)%2]<<" "<<"\n";
            su+=pal*pa[(mit+1)%2];
            su+=((pal-1)*(pal-2))/2+pal-1;
            mit++;
            pa[mit%2]+=pal;
            pal=0;
        }
        pal++;
    }
    su+=pal*pa[(mit+1)%2];
    su+=((pal-1)*(pal-2))/2+pal-1;
    cout<<su<<"\n";
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: WRONG ANSWER

Test 3

Verdict: WRONG ANSWER

Test 4

Verdict: WRONG ANSWER

Test 5

Verdict: WRONG ANSWER

Test 6

Verdict: ACCEPTED

Test 7

Verdict: ACCEPTED

Test 8

Verdict: WRONG ANSWER

Test 9

Verdict: WRONG ANSWER

Test 10

Verdict: WRONG ANSWER

Test 11

Verdict: WRONG ANSWER

Test 12

Verdict: WRONG ANSWER

Test 13

Verdict: WRONG ANSWER

Test 14

Verdict: WRONG ANSWER

Test 15

Verdict: WRONG ANSWER

Test 16

Verdict: WRONG ANSWER

Test 17

Verdict: WRONG ANSWER

Test 18

Verdict: WRONG ANSWER

Test 19

Verdict: WRONG ANSWER

Test 20

Verdict: WRONG ANSWER

Test 21

Verdict: WRONG ANSWER

Test 22

Verdict: WRONG ANSWER

Test 23

Verdict: WRONG ANSWER

Test 24

Verdict: WRONG ANSWER

Test 25

Verdict: WRONG ANSWER

Test 26

Verdict: WRONG ANSWER

Test 27

Verdict: WRONG ANSWER

Test 28

Verdict: WRONG ANSWER