Submission #851833

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
851833	2023-09-20 16:58:45	kh0i	Rarest Insects (IOI22_insects)	C++17	100 / 100	35 ms	1948 KiB

insects

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#include <bits/stdc++.h>
#include "insects.h"
using namespace std;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
set<int> inside;
map<int, set<int>> states;
int D = 0;
vector<int> a;
void move_in(int x){
    if(inside.count(x)) return;
    move_inside(a[x]);
    inside.insert(x);
}
void move_out(int x){
    if(!inside.count(x)) return;
    move_outside(a[x]);
    inside.erase(x);
}
int min_cardinality(int N) {
    a.resize(N);
    iota(a.begin(), a.end(), 0);
    shuffle(a.begin(), a.end(), rng);
    for (int i = 0; i < N; ++i) {
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 15 / 15
• Subtask 3: 75 / 75