Submission #753259

#	Time	Username	Problem	Language	Result	Execution time	Memory
753259		vjudge1	Genetics (BOI18_genetics)	C++17	100 / 100	1274 ms	148524 KiB

genetics

#include<bits/stdc++.h>
#define int long long
using namespace std;
int n, m, k, tot, sum[4101][4], dna[4101][4101], w[4101];
signed main() {
    cin >> n >> m >> k;
    mt19937 rng(12874);
    for(int i = 1; i <= n; i++) {
        char c; tot+=w[i]=rng();
        for(int j = 0; j < m; j++) {
            cin >> c;
            if(c=='C')dna[i][j]=1;
            if(c=='G')dna[i][j]=2;
            if(c=='T')dna[i][j]=3;
            sum[j][dna[i][j]]+=w[i];
        }
    }
    for(int i = 1; i <= n; i++) {
        int x = 0;
        for(int j = 0; j < m; j++) {
            x+=tot-sum[j][dna[i][j]];
        }
        if(x==k*(tot-w[i]))
            cout << i << '\n';
    }
}

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