ABC-poisto

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

typedef long long ll;

void testi(){
    string s;
    cin >> s;
    int n=s.size();
    int a=0, b=0, c=0;
    for (int i=0; i<n; ++i){
        if (s[i]=='A') a++;
        if (s[i]=='B') b++;
        if (s[i]=='C') c++;
    }
    if (a>(b+c)) {
        cout << 2*(b+c) << "\n";
        return;
    }
    if (b>(a+c)) {
        cout << 2*(a+c) << "\n";
        return;
    }
    if (c>(a+b)) {
        cout << 2*(a+b) << "\n";
        return;
    }
    if (n%2==1){
        cout << n-1 << "\n";
        return;
    }
    cout << n << "\n";
}

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    //Älä käytä, jos tehtävä on interaktiivinen!
    int t;
    cin >> t;
    while (t--) testi();
}

Test 1

Group: 1, 2

Verdict: ACCEPTED

Test 2

Group: 2

Verdict: ACCEPTED