Submission #997748

#	Time	Username	Problem	Language	Result	Execution time	Memory
997748		MarwenElarbi	Genetics (BOI18_genetics)	C++17	0 / 100	595 ms	3664 KiB

genetics

#include <bits/stdc++.h>
using namespace std;
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#define fi first
#define se second
#define ll long long
#define pb push_back
#define ii pair<int,int>
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int main(){
    int n,m,k;
    cin>>n>>m>>k;
    string tab[n];
    vector<int> per(n);
    vector<int> cte(n);
    for (int i = 0; i < n; ++i)
    {
        per[i]=i;
        cte[i]=i;
        cin>>tab[i];
    }
    bool vis[n];
    shuffle(cte.begin(),cte.end(),rng);
    memset(vis,0,sizeof vis);
    int cnt=0;
    for (int i = 0; i < n/2; ++i)
    {
        if(vis[cte[i]]==1) continue;
        shuffle(per.begin(),per.end(),rng);
        for (int j = 0; j < n; ++j)
        {
            if(per[j]==cte[i]) continue;
            int cur=0;
            for (int t = 0; t < m; ++t)
            {
                if(tab[cte[i]][t]!=tab[per[j]][t]) cur++;
                if(cur>k) break;
            }
            if(cur!=k){
                vis[per[j]]=1;
                vis[cte[i]]=1;
                break;
            }
        }
        if(vis[cte[i]]==0){
            cout <<cte[i]+1<<endl;
            return 0;
        }
    }
    for (int i = 0; i < n; ++i)
    {
        if(vis[cte[i]]==0){
            cout <<cte[i]+1<<endl;
            return 0;
        }
    }
}

Compilation message (stderr)

genetics.cpp: In function 'int main()':
genetics.cpp:26:9: warning: unused variable 'cnt' [-Wunused-variable]
   26 |     int cnt=0;
      |         ^~~

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