제출 #390864

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
390864	2021-04-17 09:07:34	AlexPop28	버섯 세기 (IOI20_mushrooms)	C++14	0 / 100	2 ms	200 KiB

mushrooms

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#include "mushrooms.h"
#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL_DEFINE
const int K = 2;
#else
const int K = 141;
#endif
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int count_mushrooms(int n) {
  if (n <= K) {
    int ans = 0;
    for (int i = 1; i < n; ++i) {
      vector<int> curr = {0, i};
      ans += use_machine(curr);
    }
    return n - ans;
  }
  vector<int> val(n, -1);
  val[0] = 0;
  auto Get = [&]() {
    int pos = rng() % n;
    while (val[pos] >= 0) pos = rng() % n;
    return pos;
 
 
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