Submission #151154

#	Time	Username	Problem	Language	Result	Execution time	Memory
151154		Blagojce	Genetics (BOI18_genetics)	C++11	19 / 100	2023 ms	69496 KiB

genetics

#include <bits/stdc++.h>
#define fr(i, n, m) for(int i = (n); i < (m); i ++)
#define pb push_back
#define st first
#define nd second
#define pq priority_queue
#define all(x) begin(x),end(x)

using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int,int> pii;
ll const inf = 1e9;
ll const mod = 1e9 + 7;
ld const eps = 1e-9;

bitset<4101> a[4101];
int main()
{
        ios_base::sync_with_stdio(false);
        cin.tie(NULL);
        int n, m, k;
        cin >> n >> m >> k;
        fr(i, 0, n){
                string s;
                cin >> s;
                fr(j, 0, m){
                        if(s[j] == 'A') a[i][j] = 1;
                }
        }
        bitset<4101> op;
        int cnt[n][n];
        memset(cnt, -1, sizeof(cnt));
        fr(i, 0, n){
                bool ok = true;
                fr(j, 0, n){
                        if(i == j) continue;
                        if(cnt[i][j] == -1){
                                op = a[i]^a[j];
                                cnt[i][j] = cnt[j][i] = op.count();
                        }
                        if(cnt[i][j] != k){
                                ok = false;
                                break;
                        }

                }
                if(ok){
                        cout << i + 1<< endl;
                        return 0;
                }
        }
        cout << -1 << endl;

        return 0;
}

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