Submission #140807

#	Time	Username	Problem	Language	Result	Execution time	Memory
140807		Minnakhmetov	Genetics (BOI18_genetics)	C++14	27 / 100	2087 ms	3192 KiB

genetics

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

#define ll long long
#define all(aaa) aaa.begin(), aaa.end()

const int N = 4100;
string s[N];
int a[N];
bool banned[N];

signed main() {
#ifdef HOME
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif
    ios_base::sync_with_stdio(0);
    cin.tie(0);

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

    mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());

    for (int i = 0; i < n; i++) {
        a[i] = i;
        while (s[i].empty())
            getline(cin, s[i]);
    }

    shuffle(a, a + n, rng);

    for (int h = 0; h < n; h++) {
        int i = a[h];

        if (banned[i])
            continue;

        bool ok = true;
        for (int j = 0; j < n; j++) {
            if (i != j) {
                int d = 0;
                for (int k = 0; k < m; k++) {
                    if (s[i][k] != s[j][k])
                        d++;
                }
                if (d != k) {
                    banned[j] = 1;
                    ok = false;
                }
            }
        }
        if (ok) {
            cout << i + 1;
            return 0;
        }
    }
    
    return 0;
}

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