Submission #1260419

#	Time	Username	Problem	Language	Result	Execution time	Memory
1260419		kawhiet	Trener (COCI20_trener)	C++20	22 / 110	3 ms	584 KiB

trener

#include <bits/stdc++.h>
using namespace std;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int n, k;
    cin >> n >> k;
    vector<vector<string>> a(n, vector<string>(k));
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < k; j++) {
            cin >> a[i][j];
        }
    }
    vector<vector<int64_t>> dp(n, vector<int64_t>(k));
    fill(dp[0].begin(), dp[0].end(), 1);
    for (int i = 1; i < n; i++) {
        for (int j = 0; j < k; j++) {
            string s1 = a[i][j].substr(0, i);
            string s2 = a[i][j].substr(1, i);
            for (int r = 0; r < k; r++) {
                if (a[i - 1][r] == s1 || a[i - 1][r] == s2) {
                    dp[i][j] += dp[i - 1][r];
                }
            }
        }
    }
    cout << accumulate(dp[n - 1].begin(), dp[n - 1].end(), int64_t(0)) << '\n';
    return 0;
}

• Subtask 1: 22 / 22
• Subtask 2: 0 / 33
• Subtask 3: 0 / 55