Source Code
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;


void magic() {
    string s; cin>>s;
    set<char> letters = {'A','B','C','E','F','G','H','I','J','K','L','M'};
    for(int i = 0 ; i<s.size() ; i++){
        if(letters.count(s[i])) letters.erase(s[i]);
    }
    if(letters.empty()) cout<<"YES"<<endl;
    else cout<<"NO"<<endl;

}


int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    //freopen("intput.in", "r", stdin); // INPUT
    // freopen("road.out", "w", stdout); // OUTPUT JUST IN CASE

    int tt = 1; cin>>tt;
    while (tt--)
        magic();
}
Copy
Well-indexed? hashemtb
GNU G++17
80 ms
320 KB
Wrong Answer