Submission #1024659

#	Time	Username	Problem	Language	Result	Execution time	Memory
1024659		mansur	Rarest Insects (IOI22_insects)	C++17	10 / 100	249 ms	1104 KiB

insects

#include "insects.h"
#include <bits/stdc++.h>

using namespace std;

#define rall(s) s.rbegin(), s.rend()
#define all(s) s.begin(), s.end()
#define sz(s) (int) s.size()
#define s second 
#define f first 

using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;

mt19937_64 rng(131415889);

int min_cardinality(int n) {
    vector<pair<int, vector<int>>> s;
    vector<int> p(n);
    for (int i = 0; i < n; i++) p[i] = i;
    shuffle(all(p), rng);
    s.push_back({1, {p[0]}});
    move_inside(p[0]);
    for (int i = 1; i < n; i++) {
        move_inside(p[i]);
        if (press_button() > 1) {
            bool ok = 0;
            sort(rall(s));
            for (int j = 0; j < sz(s); j++) {   
                move_outside(s[j].s.back());
                if (press_button() == 1) {
                    s[j].s.push_back(p[i]);
                    s[j].f++;
                    ok = 1;
                    break;
                }
                move_inside(s[j].s.back());
            }
            if (!ok) move_outside(p[i]);
            continue;
        }
        s.push_back({1, {p[i]}});
    }
    sort(all(s));
    return s[0].f;
}

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