Submission #709546

#	Time	Username	Problem	Language	Result	Execution time	Memory
709546		stevancv	Genetics (BOI18_genetics)	C++14	0 / 100	8 ms	6156 KiB

genetics

#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define sp ' '
#define en '\n'
#define smin(a, b) a = min(a, b)
#define smax(a, b) a = max(a, b)
using namespace std;
const int N = 4100 + 5;
const int inf = 1e9;
const int mod = 1e9 + 7;
int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int n, m, k;
    cin >> n >> m >> k;
    vector<string> s(n);
    for (int i = 0; i < n; i++) {
        cin >> s[i];
    }
    mt19937 mt(time(nullptr));
    for (int i = 0; i < n; i++) {
        int u = 500;
        int moze = 1;
        while (u--) {
            int j = (mt() % n) ^ (mt() % n) ^ (mt() % n);
            if (i == j) continue;
            int r = 0;
            for (int p = 0; p < m; p++) {
                if (s[i][p] != s[j][p]) r += 1;
                if (r > k || r + m - p - 1 < k) {
                    moze = 0;
                    break;
                }
            }
            if (moze == 0) break;
        }
        if (moze == 1) {
            cout << i + 1 << en;
            return 0;
        }
    }
    return 0;
}

• Subtask 1: 0 / 27
• Subtask 2: 0 / 19
• Subtask 3: 0 / 28
• Subtask 4: 0 / 26