Submission #997733

#	Time	Username	Problem	Language	Result	Execution time	Memory
997733		MarwenElarbi	Genetics (BOI18_genetics)	C++17	0 / 100	0 ms	348 KiB

genetics

#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define ll long long
#define pb push_back
#define ii pair<int,int>
const int nax=5e4+5;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int main(){
    #ifndef ONLINE_JUDGE
        freopen("input.txt", "r", stdin);
        freopen("output.txt", "w", stdout);
    #endif
    int n,m,k;
    cin>>n>>m>>k;
    string tab[n];
    vector<int> per(n);
    for (int i = 0; i < n; ++i)
    {
        per[i]=i;
        cin>>tab[i];
    }
    shuffle(per.begin(),per.end(),rng);
    bool vis[n];
    memset(vis,0,sizeof vis);
    int cnt=0;
    for (int i = 0; i < min(n,10); ++i)
    {
        for (int j = 0; j < n; ++j)
        {
            if(per[i]==per[j]) continue;
            int cur=0;
            for (int t = 0; t < m; ++t)
            {
                if(tab[per[i]][t]!=tab[per[j]][t]) cur++;
                if(cur>k) break;
            }
            if(cur!=k){
                vis[per[j]]=1;
                vis[per[i]]=1;
            }
        }
    }
    for (int i = 0; i < n; ++i)
    {
        if(vis[per[i]]==0){
            cout <<per[i]+1<<endl;
            break;
        }
    }
}

Compilation message (stderr)

genetics.cpp: In function 'int main()':
genetics.cpp:27:9: warning: unused variable 'cnt' [-Wunused-variable]
   27 |     int cnt=0;
      |         ^~~
genetics.cpp:12:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |         freopen("input.txt", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
genetics.cpp:13:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |         freopen("output.txt", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

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