Submission #1034501

#	Time	Username	Problem	Language	Result	Execution time	Memory
1034501		anango	Genetics (BOI18_genetics)	C++17	0 / 100	36 ms	7880 KiB

genetics

#include <bits/stdc++.h>
#define int long long
using namespace std;
int INF = 1LL<<30;

int match(string &s1, string &s2) {
    int ct=0;
    for (int i=0; i<s1.size(); i++) {
        ct+=s1[i]!=s2[i];
    }
    return ct;
}

signed main() {
    /*#ifndef ONLINE_JUDGE
        // for getting input from input.txt
        freopen("input.txt", "r", stdin);
        // for writing output to output.txt
        freopen("output.txt", "w", stdout);
    #endif*/
    //ios_base::sync_with_stdio(false);
    //cin.tie(NULL);
    int n,m,k; cin >> n >> m >> k;
    vector<string> ar(n);
    vector<int> order(n); 
    vector<int> visited(n,0);
    for (int i=0; i<n; i++) {
        int r = (rand()+rand()+rand())%n;
        while (visited[r]) {
            r = rand()%n; r+=rand(); r%=n;
        }
        visited[r] = 1;
        order[i] = r;
        //cout << i <<" " <<r << endl;
    }
    for (int i=0; i<n; i++) {
        cin >> ar[i];
    }
    for (int i=0; i<n; i++) {
        int gg = 1;
        for (int j=0; j<n; j++) {
            if (order[i]==order[j]) continue;
            if (match(ar[order[i]],ar[order[j]])!=k) {
                gg=0;
                break;
            }
        }
        if (gg) {
            cout << order[i]+1 << endl;
            break;
        }
    }
    
}

Compilation message (stderr)

genetics.cpp: In function 'long long int match(std::string&, std::string&)':
genetics.cpp:8:20: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |     for (int i=0; i<s1.size(); i++) {
      |                   ~^~~~~~~~~~

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