Submission #627775

#	Time	Username	Problem	Language	Result	Execution time	Memory
627775		ETK	Rarest Insects (IOI22_insects)	C++17	10 / 100	355 ms	208 KiB

insects

#include <bits/stdc++.h>
#include "insects.h"
#define rep(i,a,b) for(int i=(a);i<=(b);++i)
#define per(i,a,b) for(int i=(a);i>=(b);--i)
#define pii pair<int,int>
#define vi vector<int>
#define fi first
#define se second
#define pb push_back
#define ALL(x) x.begin(),x.end()
#define sz(x) int(x.size())
#define ll long long
using namespace std;
const int N = 2e5 + 5;
int n,a[N],b[N];
// void move_inside(int i){
//     ++b[a[i]];
// }
// void move_outside(int i){
//     --b[a[i]];
// }
// int press_button(){
//     int mx = 0;
//     rep(i,1,n)mx = max(mx,b[i]);
//     return mx;
// }
int min_cardinality(int n){
    int cnt = 0;
    vi vis(n,0);
    rep(i,0,n - 1){
        move_inside(i);
        //appeared before
        if(press_button() > 1)move_outside(i);
        else vis[i] = 1,cnt++;
    }
    int tmp = cnt;
    rep(k,2,n){
        rep(i,0,n - 1){
            if(vis[i])continue;
            move_inside(i);
            if(press_button() > k)move_outside(i);
            else vis[i] = 1,tmp++;
        }
        if(tmp < k * cnt){
            return k - 1;
        }
    }
    return n;
}
// int main(){
//     cin >> n;
//     rep(i,0,n - 1)cin >> a[i];
//     cout << min_cardinality(n) << '\n';
// }

• Subtask 1: 10 / 10
• Subtask 2: 0 / 15
• Subtask 3: 0 / 75