Submission #869565

#	Time	Username	Problem	Language	Result	Execution time	Memory
869565		JoksimKaktus	Set (COCI21_set)	C++17	40 / 110	1088 ms	48556 KiB

Main

#include <bits/stdc++.h>

using namespace std;
using ll = long long;

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(0);
    int n,k;
    cin >> n >> k;
    set <string> mlt;
    for(int i = 0;i < n;i++){
        string s;
        cin >> s;
        mlt.insert(s);
    }
    ll res = 0;
    string gone;
    for(string s1 : mlt){
        mlt.erase(gone);
        ll resadd = 0;
        for(string s2 : mlt){
            if(s1 == s2)continue;
            string target = "";
            for(int i = 0;i < k;i++){
                if(s1[i] == s2[i]){
                    target += s1[i];
                }else{
                    if(s1[i] != '1' && s2[i] != '1'){
                        target += '1';
                    }else if(s1[i] != '2' && s2[i] != '2'){
                        target += '2';
                    }else{
                        target += '3';
                    }
                }
            }
            resadd += mlt.count(target);
        }
        res += resadd/2;
        gone = s1;
    }

    cout << res;
    return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 30 / 30
• Subtask 3: 0 / 70