Submission #1228105

#	Time	Username	Problem	Language	Result	Execution time	Memory
1228105		minhpk	Genetics (BOI18_genetics)	C++20	46 / 100	2092 ms	7496 KiB

genetics

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

bitset<4101*4> t[4101];
int res[4101];

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

    int a, b, c;
    cin >> a >> b >> c;
    for (int i = 1; i <= a; i++) {
        string s;
        cin >> s;
        for (int j = 0; j < b; j++) {
            if (s[j]=='A'){
                t[i][j]=1;
            }else if (s[j]=='T'){
                t[i][b+j]=1;
            }else if (s[j]=='G'){
                t[i][2*b+j]=1;
            }else{
                t[i][3*b+j]=1;
            }
        }
    }

    for (int i = 1; i <= a; i++) {
        for (int j = i + 1; j <= a; j++) {
            if ((t[i] ^ t[j]).count() == 2*c) {
                res[i]++;
                res[j]++;
            }
        }
    }

    for (int i = 1; i <= a; i++) {
        if (res[i] == a - 1) {
            cout << i << "\n";
            return 0;
        }
    }

    return 0;
}

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