Submission #1238666

#	Time	Username	Problem	Language	Result	Execution time	Memory
1238666		nlsosad	Genetics (BOI18_genetics)	C++20	27 / 100	2001 ms	7660 KiB

genetics

#include <bits/stdc++.h>
using namespace std;
string s[4101];
bitset<4100> bs[4101][4]; // a c g t
char luu[4] = {'A', 'C', 'G', 'T'};
int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	int n, m, k;
	cin >> n >> m >> k;
	for (int i = 1;i<=n;++i){
		cin >> s[i];
		for (int j= 0;j<s[i].size();++j){
			// cout << s[i][j] << '\n';
			for (int p = 0;p<4;++p){
				if(s[i][j]==luu[p]){
					bs[i][p].set(j);
				}
			}
		}
	}
	for (int i = 1;i<=n;++i){
		bool c = true;
		for (int j = 1;j<=n;++j){
			if(i!=j){
				int tmp = 0;
				tmp += (bs[i][0] ^ bs[j][0]).count();
				tmp += (bs[i][1] ^ bs[j][1]).count();
				tmp += (bs[i][2] ^ bs[j][2]).count();
				tmp += (bs[i][3] ^ bs[j][3]).count();
				tmp/=2;
				// cout << i << ' '<< j << ' ' << tmp << '\n';
				if(tmp!=k){
					c = false;
					break;
				}
			}
		}
		if(c){
			cout << i;
			return 0;
		}
	}
}

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