Submission #208477

#	Time	Username	Problem	Language	Result	Execution time	Memory
208477		tleontest1	Genetics (BOI18_genetics)	C++17	0 / 100	2068 ms	3908 KiB

genetics

#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")
 
#include <bits/stdc++.h>
 
using namespace std;
 
typedef long long lo;
typedef pair< lo,lo > PII;
 
#define fi first
#define se second
#define mp make_pair
#define pb push_back
#define fio() ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
#define FOR for(int i=1;i<=n;i++)
#define mid ((start+end)/2)
#define ort ((bas+son)/2)
 
const lo MAX = -1000000000000000000;
const lo MIN = 1000000000000000000;
const lo inf = 1000000000;
const lo KOK = 100000;
const lo LOG = 30;
const lo li = 5005;
const lo mod = 1000000007;
 
int n,m,b[li],a[li],k,flag,t,dp[li][li],vis[li];
int cev;
string s[li];
vector<int> v[li],v1;
 
int main(void){
	cin>>n>>m>>k;
	FOR{
		cin>>s[i];
	}
	
	for(int i=1;i*i<=n;i++){
		for(int j=1;j<=n;j++){
			cev=0;
			if(j==i)continue;
			for(int jj=0;jj<m;jj++){
				if(s[2][jj]!=s[j][jj])cev++;
			}
			if(cev==k){v[i].pb(j);}
		}
		v[i].pb(i);
	}
	
	
	for(int i=2;i*i<=n;i++){
		if(v[i].size()<v[1].size())swap(v[i],v[1]);
	}
	for(int i=0;i<(int)v[1].size();i++){
		int yes=0;
		for(int j=1;j<=n;j++){
			if(j==v[1][i])continue;
			cev=0;
			for(int jj=0;jj<m;jj++){
				if(s[v[1][i]][jj]!=s[j][jj])cev++;
			}
			if(cev==k)yes++;
		}
		if(yes==n-1){printf("%d\n",v[1][i]);return 0;}
	}
	return 0;
}

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