Submission #530029

#	Time	Username	Problem	Language	Result	Execution time	Memory
530029		OttoTheDino	Genetics (BOI18_genetics)	C++17	27 / 100	2077 ms	4096 KiB

genetics

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

#define rep(i,s,e)                  for (int i = s; i <= e; ++i)
#define rrep(i,s,e)                 for (int i = s; i >= e; --i)
#define pb                          push_back
#define pf                          push_front
#define fi                          first
#define se                          second
#define all(a)                      a.begin(), a.end()
typedef long long ll;
typedef pair<int, int> ii;
typedef vector<ii> vii;
typedef vector<int> vi;
typedef vector<double> vd;
typedef vector<string> vs;
typedef vector<ll> vll;

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);

    srand(4312);

    int n, m, k; cin >> n >> m >> k;
    bitset<4100> x[n][4];

    unordered_map<char, int> mp;
    mp['A'] = 0;
    mp['C'] = 1;
    mp['G'] = 2;
    mp['T'] = 3;

    rep (i,0,n-1) {
        string s; cin >> s;
        rep (j,0,(int)s.size()-1) x[i][mp[s[j]]] |= bitset<4100>(1)<<j;
    }

    vi order(n);
    iota(all(order), 0);
    random_shuffle(all(order));

    int s[n] = {};
    rep (iii,0,n-1) {
        int i = order[iii];
        if (s[i]) continue;
        bool suc = 1;
        rep (ij,0,n-1) {
            int j = order[ij];
            if (i==j) continue;
            int cnt = 0;
            rep (l,0,3) cnt += (x[i][l]^x[j][l]).count();
            if (cnt/2!=k) {
                s[j] = 1;
                suc = 0;
            }
        }
        if (suc) {
            cout << i+1 << "\n";
            break;
        }
    }

    return 0;
}

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