Submission #444467

#	Time	Username	Problem	Language	Result	Execution time	Memory
444467		zxcvbnm	Parametriziran (COCI19_parametriziran)	C++14	88 / 110	1510 ms	65540 KiB

Main

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int n, m;
    cin >> n >> m;
    map<string, int> cnt;
    vector<string> a(n);

    for(int i = 0; i < n; i++) {
        string str;
        cin >> str;
        a[i] = str;

        for(int mask = 0; mask < (1 << m); mask++) {
            string s = str;
            for(int j = 0; j < m; j++) {
                if (mask & (1 << j)) {
                    s[j] = '*';
                }
            }
            cnt[s]++;
        }
    }

    ll ans = 0;
    for(string str : a) {
        vector<int> idx;
        for(int i = 0; i < m; i++) {
            if (isalpha(str[i])) {
                idx.push_back(i);
            }
        }

        int letters = idx.size();
        string str2 = str;
        for(char& c : str2) {
            if (c == '?') {
                c = '*';
            }
        }

        for(int mask = 0; mask < (1 << letters); mask++) {
            string s = str2;
            for(int j = 0; j < letters; j++) {
                if (mask & (1 << j)) {
                    s[idx[j]] = '?';
                }
            }
//            cout << s << " ";
//            cout << cnt[s] << "\n";
            ans += cnt[s];
        }
//        cerr << "\n";
    }

    ans -= n;
    ans /= 2;
    cout << ans << "\n";
    return 0;
}

• Subtask 1: 11 / 11
• Subtask 2: 11 / 11
• Subtask 3: 11 / 11
• Subtask 4: 11 / 11
• Subtask 5: 11 / 11
• Subtask 6: 11 / 11
• Subtask 7: 11 / 11
• Subtask 8: 11 / 11
• Subtask 9: 0 / 11
• Subtask 10: 0 / 11