Submission #715097

#	Time	Username	Problem	Language	Result	Execution time	Memory
715097		keystone	Set (COCI21_set)	C++14	0 / 110	2 ms	212 KiB

Main

#include <iostream>
#include <cstring>
using namespace std;

int main() {
    int n, k;
    cin >> n >> k;
    
    char cards[n][k + 1];
    for (int i = 0; i < n; i++) {
        cin >> cards[i];
    }
    
    long long count = 0;
    for (int i = 0; i < n; i++) {
        for (int j = i + 1; j < n; j++) {
            bool is_set = true;
            for (int p = 0; p < k; p++) {
                if (cards[i][p] == cards[j][p]) {
                    for (int q = j + 1; q < n; q++) {
                        if (cards[i][p] != cards[q][p] && cards[j][p] != cards[q][p]) {
                            is_set = false;
                            break;
                        }
                    }
                    if (!is_set) {
                        break;
                    }
                }
                else {
                    if (cards[i][p] != '1' && cards[j][p] != '1' && cards[i][p] != cards[j][p]) {
                        if (cards[i][p] == '2' || cards[j][p] == '2') {
                            for (int q = j + 1; q < n; q++) {
                                if (cards[q][p] != '1' && cards[i][p] != cards[q][p] && cards[j][p] != cards[q][p]) {
                                    is_set = false;
                                    break;
                                }
                            }
                            if (!is_set) {
                                break;
                            }
                        }
                        else if (cards[i][p] == '3' || cards[j][p] == '3') {
                            for (int q = j + 1; q < n; q++) {
                                if (cards[q][p] == '3' || cards[i][p] == cards[q][p] || cards[j][p] == cards[q][p]) {
                                    is_set = false;
                                    break;
                                }
                            }
                            if (!is_set) {
                                break;
                            }
                        }
                    }
                    else {
                        is_set = false;
                        break;
                    }
                }
            }
            if (is_set) {
                count++;
            }
        }
    }
    
    cout << count << endl;
    
    return 0;
}

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