Submission #627807

#	Time	Username	Problem	Language	Result	Execution time	Memory
627807		Fischer	Rarest Insects (IOI22_insects)	C++17	Compilation error	0 ms	0 KiB

insects

#include <bits/stdc++.h>
#include "insects.h"
using namespace std;

const int maxn = 2010;
int in[maxn];
vector<bool> memo;
int n;

void put(int x) {
  memo[x] = 1;
}

void pop(int x) {
  memo[x] = 0;
}

map<vector<bool>, int> mapMemo;
bool last[maxn];
int push() {
  if (mapMemo.contains(memo)) return mapMemo[memo];

  for (int i = 0; i < n; ++i) {
    if (last[i] != (in[i] != 0)) {
      if (last[i]) move_outside(i);
      else move_inside(i);
      last[i] ^= 1;
    } 
  }

  return mapMemo[memo] = press_button();
}

bool p(int x) {  
  int len = c;
  for (int i = 0; i < n; ++i) {
    if (in[i] == -1) continue;
    put(i);
    in[i] = 1;
    if (push() > x) {
      pop(i);
      in[i] = 0;
    } else {
      len += 1;
    }
  }

  for (int i = 0; i < n; ++i) {
    if (in[i] == 1) {
      pop(i);
      in[i] = 0;
    }
  }

  return len == x * c;
}

int min_cardinality(int N) {
  n = N;
  memo.assign(n, 0);
  c = 0;  
  for (int i=0; i<N; ++i) {
      put(i);
      in[i] = -1;
      if (push() == 1) c += 1;
      else pop(i); 
  }

  if (c == 1) return N;
  if (c == N) return 1;

  int lo = 2, hi = N / c;
  while (lo < hi) {
    int mid = (lo + hi + 1) / 2;
    if (p(mid, N)) lo = mid;
    else hi = mid-1;
  }

  return lo;
}

Compilation message (stderr)

insects.cpp: In function 'int push()':
insects.cpp:21:15: error: 'class std::map<std::vector<bool>, int>' has no member named 'contains'
   21 |   if (mapMemo.contains(memo)) return mapMemo[memo];
      |               ^~~~~~~~
insects.cpp: In function 'bool p(int)':
insects.cpp:35:13: error: 'c' was not declared in this scope
   35 |   int len = c;
      |             ^
insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:61:3: error: 'c' was not declared in this scope
   61 |   c = 0;
      |   ^
insects.cpp:75:17: error: too many arguments to function 'bool p(int)'
   75 |     if (p(mid, N)) lo = mid;
      |                 ^
insects.cpp:34:6: note: declared here
   34 | bool p(int x) {
      |      ^