Submission #714098

#	Time	Username	Problem	Language	Result	Execution time	Memory
714098		Pherokung	Rarest Insects (IOI22_insects)	C++17	0 / 100	1 ms	208 KiB

insects

#include "insects.h"
#include<bits/stdc++.h>
using namespace std;
int min_cardinality(int n) {
  int be = 1, ed = n, type = 0;
  stack<int> in;
  for(int i=0;i<n;i++){
    move_inside(i);
    if(press_button() > 1) move_outside(i);
    else type++, in.push(i);
  }
  while(be <= ed){
    int mid = (be+ed)/2, cnt = 0;
    while(!in.empty()){
      move_outside(in.top());
      in.pop();
    }
    for(int i=0;i<n,cnt<mid*type;i++){
      move_inside(i);
      if(press_button() > mid) move_outside(i);
      else cnt++, in.push(i);
    }
    if(cnt == mid * type) be = mid+1;
    else ed = mid-1; 
  }
  return ed;
}

Compilation message (stderr)

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:18:18: warning: left operand of comma operator has no effect [-Wunused-value]
   18 |     for(int i=0;i<n,cnt<mid*type;i++){
      |                 ~^~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 15
• Subtask 3: 0 / 75