Submission #631745

#	Time	Username	Problem	Language	Result	Execution time	Memory
631745		AmirElarbi	Rarest Insects (IOI22_insects)	C++17	Compilation error	0 ms	0 KiB

insects

#include "insects.h"
#include <bits/stdc++.h>
#define ve vector
#define vi ve<int>
#define ii pair<int,int>
#define ll long long
#define vvi ve<vi>
#define se second
#define fi first
#define pb push_back

using namespace std;
const int nax = 2e3+5;
const int MOD = 1e9+7;

int pref[nax];
int min_cardinality(int n) {
  int type  = 0;
  for (int i = 0; i < n; ++i)
  {
       move_inside(i);
       int a = press_button();
       if(a == 1)
        type++;
       else 
        move_outside(i);
      pref[i] = type;
  }
  for (int i = 0; i < n; ++i)
  {
    move_outside(i);
  }
  int l = 1,r = (n+1)/type, ans = 0;
  vi cur;
  while(l< r){
    int md = (l+r)/2;
    int nb = 0;
    for (int i = 0; i < n; ++i)
    {
        if(vis[i]) continue;
        move_inside(i);
        int a = press_button();
        if(a  > md){
            move_outside(i);
        } else {
            nb++;
            cur.pb(i);
        }
    }
    if(type*md == nb){
        for(auto x : cur) vis[x] = 1;
        l = md+1; ans = md; 
    } else {
        r = md;
        for (auto i : cur)
        {
          move_outside(i);
          vis[x] = 0;
        }
        cur.clear();
    }
  }
  return ans;
}

Compilation message (stderr)

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:40:12: error: 'vis' was not declared in this scope; did you mean 'vi'?
   40 |         if(vis[i]) continue;
      |            ^~~
      |            vi
insects.cpp:51:27: error: 'vis' was not declared in this scope; did you mean 'vi'?
   51 |         for(auto x : cur) vis[x] = 1;
      |                           ^~~
      |                           vi
insects.cpp:58:11: error: 'vis' was not declared in this scope; did you mean 'vi'?
   58 |           vis[x] = 0;
      |           ^~~
      |           vi
insects.cpp:58:15: error: 'x' was not declared in this scope
   58 |           vis[x] = 0;
      |               ^