Submission #488916

#	Time	Username	Problem	Language	Result	Execution time	Memory
488916		Victor	Set (COCI21_set)	C++17	40 / 110	1087 ms	832 KiB

Main

#include <bits/stdc++.h>

using namespace std;

#define rep(i, a, b) for (int i = (a); i < (b); ++i)
#define per(i, a, b) for (int i = (b - 1); i >= (a); --i)
#define trav(a, x) for (auto &a : x)

#define all(x) x.begin(), x.end()
#define sz(x) x.size()
#define pb push_back
#define debug(x) cout<<#x<<" = "<<x<<endl

#define umap unordered_map
#define uset unordered_set

typedef pair<int, int> ii;
typedef pair<int, ii> iii;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef vector<vi> vvi;

typedef long long ll;
typedef pair<ll,ll> pll;
typedef vector<ll> vll;
typedef vector<pll> vpll;

const int INF = 1'000'000'007;

int n,k,ans=0;

int main() {
    cin.tie(0)->sync_with_stdio(0);
    cin.exceptions(cin.failbit);

    cin>>n>>k;
    uset<string>cards;
    rep(i,0,n){
        string card;
        cin>>card;
        trav(card2,cards){
            string goal="";
            rep(i,0,k){
                if(card[i]==card2[i])goal+=card[i];
                else if(min(card[i],card2[i])=='1'){
                    if(max(card[i],card2[i])=='2')goal+='3';
                    else goal+='2';

                } else goal+='1';
            }
            if(cards.count(goal))++ans;
        }
        cards.insert(card);
    }
    cout<<ans/2<<endl;
    return 0;
}

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