Submission #473487

#	Time	Username	Problem	Language	Result	Execution time	Memory
473487		Blobo2_Blobo2	Genetics (BOI18_genetics)	C++14	46 / 100	2072 ms	29960 KiB

genetics

/*
Editor: Abdelrahman Hossam
Nickname: Blobo2_Blobo2
IOI next year isA :)
*/
#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,O3")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,sse4.2,popcnt,abm,mmx,avx2,tune=native")
#pragma GCC optimize("-ffast-math")
#pragma GCC optimize("-funroll-loops")
#pragma GCC optimize("-funroll-all-loops,-fpeel-loops,-funswitch-loops")

#include<bits/stdc++.h>
using namespace std;
//#define int long long
#define endl "\n"
#define all(v)  v.begin(),v.end()
#define gen(arr,n,nxt)  generate(arr,arr+n,nxt)
#define Blobo2_el_7akim_elly_3ayz_yro7_IOI_w_3ayz_yakol_jilaty ios_base::sync_with_stdio(false);cin.tie(0);
#define EPS 0.00000001

const int mo=1e9+7,INF=1e18;
int nxt(){int x;cin>>x;return x;}

signed main(){
    Blobo2_el_7akim_elly_3ayz_yro7_IOI_w_3ayz_yakol_jilaty
    //freopen("in.txt","r",stdin);
    int n=nxt(),m=nxt(),k=nxt();
    string dna[n];
    for(int i=0;i<n;i++)cin>>dna[i];
    int ans[n];
    bool vis[n];
    memset(vis,0,sizeof vis);
    memset(ans,0,sizeof ans);
    int mx =0;
    int idx =0 ;
    bool vis2[n][n];
    memset(vis2,0,sizeof vis2);
    for(int i=0;i<n;i++){
        int c = 0;
        if(vis[i] == 1)continue;
        for(int j=i+1;j<n;j++){
            int ok =0;
            for(int a =0;a<m;a++)
                ok += (dna[i][a]!=dna[j][a]);
            vis2[i][j]=1;
            vis2[j][i]=1;
            ans[i] += ok == k;
            ans[j] += ok == k;
            if(ok != k)
                vis[j] = 1,vis[i] =1;
        }
    }
    vector<int>v,bad;
    for(int i=0;i<n;i++){
        if(!vis[i])v.push_back(i);
        else bad.push_back(i);
    }
    for(int i=0;i<v.size();i++){
        string s = dna[v[i]];
        for(auto y:bad){
            if(y > v[i])break;
            if(vis2[v[i]][y])continue;
            string s2 = dna[y];
            int ok =0;
            for(int a =0;a<m;a++)
                ok += (s[a]!=s2[a]);
            ans[v[i]]+= ok == k;
        }
        if(ans[v[i]] == n-1){
            cout<<v[i]+1;
            return 0;
        }
    }
    cout<<idx+1;
    return 0;
}

Compilation message (stderr)

genetics.cpp:21:24: warning: overflow in conversion from 'double' to 'int' changes value from '1.0e+18' to '2147483647' [-Woverflow]
   21 | const int mo=1e9+7,INF=1e18;
      |                        ^~~~
genetics.cpp: In function 'int main()':
genetics.cpp:39:13: warning: unused variable 'c' [-Wunused-variable]
   39 |         int c = 0;
      |             ^
genetics.cpp:58:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   58 |     for(int i=0;i<v.size();i++){
      |                 ~^~~~~~~~~
genetics.cpp:34:9: warning: unused variable 'mx' [-Wunused-variable]
   34 |     int mx =0;
      |         ^~

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