Submission #1162439

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1162439	2025-03-06 07:53:20	The_Samurai	Rarest Insects (IOI22_insects)	C++20	25 / 100	98 ms	436 KiB

insects

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#include "insects.h"
#include "bits/stdc++.h"
using namespace std;
mt19937 rng(time(0));
int rand(int l, int r) {
    int x = rng(); x = abs(x);
    return x % (r - l + 1) + l;
}
int min_cardinality(int n) {
    vector<int> ord(n);
    iota(ord.begin(), ord.end(), 0);
    for (int i = 1; i < n; i++) swap(ord[i], ord[rand(0, i)]);
    vector<bool> vis(n);
    vector<int> pos = {0};
    move_inside(0);
    for (int i = 1; i < n; i++) {
        move_inside(i);
        int x = press_button();
        if (x > 1) {
            move_outside(i);
        } else {
            pos.emplace_back(i);
        }
    }
    for (int x: pos) vis[x] = true;
    int sq = sqrt(n);
    if (pos.size() <= sq) {
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 15 / 15
• Subtask 3: 0 / 75