# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
628797 | abeker | Rarest Insects (IOI22_insects) | C++17 | 3 ms | 304 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
#include "insects.h"
using namespace std;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int min_cardinality(int N) {
vector <int> rest;
auto attempt = [&](int x, int v) {
move_inside(x);
if (press_button() != v) {
rest.push_back(x);
move_outside(x);
}
};
for (int i = 0; i < N; i++)
attempt(i, 1);
int sol = 1, cnt = N - (int)rest.size();
for (; !rest.empty(); sol++) {
vector <int> tmp = rest;
rest.clear();
shuffle(tmp.begin(), tmp.end(), rng);
for (int i = 0; i < min(tmp.size(), rest.size() + (size_t)cnt); i++)
attempt(tmp[i], sol + 1);
if (tmp.size() < rest.size() + cnt)
break;
}
return sol;
}
Compilation message (stderr)
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