Submission #1274611

#	Time	Username	Problem	Language	Result	Execution time	Memory
1274611		DanielPr8	Genetics (BOI18_genetics)	C++20	19 / 100	2094 ms	2524 KiB

genetics

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using vll = vector<ll>;
using pll = pair<ll,ll>;
using vpl = vector<pll>;
using vvl =vector<vll>;
#define f first
#define s second
#define pb push_back
#define all(v) v.begin(),v.end()

int main(){
    ios_base::sync_with_stdio(0);cin.tie(NULL);
    ll n, m, k;
    cin >> n >> m >> k;
    vector<bitset<4100>> lw(n);
    for(ll i = 0; i < n; ++i){
        for(ll j = 0; j < m; ++j){
            char c;
            cin >> c;
            if(c=='C')lw[i][j]=1;
        }
    }
    vll ord(n);
    iota(all(ord),0);
    random_device g;
    shuffle(all(ord), g);
    for(ll i: ord){
        ll o=0;
        for(ll j: ord){
            if(j==i)continue;
            lw[i]^=lw[j];
            if(lw[i].count()!=k){
                lw[i]^=lw[j];
                o=1;
                break;
            }
            lw[i]^=lw[j];
        }
        if(!o){cout << i+1;break;}
    }
}

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