Submission #111925

#	Time	Username	Problem	Language	Result	Execution time	Memory
111925		fredbr	Parametriziran (COCI19_parametriziran)	C++17	110 / 110	168 ms	2972 KiB

Main

#include <bits/stdc++.h>

#pragma GCC target("popcnt")

using namespace std;

int const maxn = 50505;
int const maxm = 7;

bitset<maxn> cnt[maxm][30];
bitset<maxn> tmp, at;

int main() {
    ios::sync_with_stdio(false), cin.tie(nullptr);

    int n, m;
    cin >> n >> m;

    vector<string> v(n);

    for (int i = 0; i < n; i++) {
        auto& s = v[i];
        cin >> s;

        for (int j = 0; j < m; j++) {
            if (s[j] == '?')
                for (int k = 0; k < 26; k++)
                    cnt[j][k][i] = true;
            else
                cnt[j][s[j] - 'a'][i] = true;
        }
    }

    int64_t ans = 0;
    
    for (int i = 0; i < n; i++) at[i] = true;

    for (int j = 0; j < n; j++) {
        auto const& s = v[j];
        at[j] = false;
        tmp = at;

        for (int i = 0; i < m; i++) {
            char c = s[i];

            if (c == '?') continue;
            tmp &= cnt[i][c-'a'];
        }

        ans += tmp.count();
    }

    cout << ans << "\n";
}

• 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: 11 / 11
• Subtask 10: 11 / 11