Submission #628909

#	Time	Username	Problem	Language	Result	Execution time	Memory
628909		dqhungdl	Rarest Insects (IOI22_insects)	C++17	Compilation error	0 ms	0 KiB

insects

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

int diff = 0;
vector<bool> mark;

void countDiff(int N) {
    for (int i = 0; i < N; i++) {
        move_inside(i);
        if (press_button() == 1) {
            diff++;
            mark[i] = true;
        } else
            move_outside(i);
    }
}

bool check(int lim, int N) {
    if (press_button() > lim) {
        for (int i = 0; i < N; i++)
            if (mark[i]) {
                mark[i] = false;
                move_outside(i);
            }
    }
    int cnt = accumulate(mark.begin(), mark.end(), 0);
    for (int i = 0; i < N; i++)
        if (!mark[i]) {
            move_inside(i);
            if (press_button() > lim)
                move_outside(i);
            else {
                cnt++;
                mark[i] = true;
            }
        }
    return cnt < lim * diff;
}

int min_cardinality(int N) {
    mark.resize(N);
    countDiff(N);
    int l = 2, r = N / diff, rs = 1;
    while (l <= r) {
        int mid = l + (r - l) / 3;
//        int mid = (l + r) / 2;
        if (check(mid, N))
            r = mid - 1;
        else {
            rs = mid;
            l = mid + 1;
        }
    }
    return rs;
}

Compilation message (stderr)

insects.cpp: In function 'void countDiff(int)':
insects.cpp:10:9: error: 'move_inside' was not declared in this scope
   10 |         move_inside(i);
      |         ^~~~~~~~~~~
insects.cpp:11:13: error: 'press_button' was not declared in this scope
   11 |         if (press_button() == 1) {
      |             ^~~~~~~~~~~~
insects.cpp:15:13: error: 'move_outside' was not declared in this scope
   15 |             move_outside(i);
      |             ^~~~~~~~~~~~
insects.cpp: In function 'bool check(int, int)':
insects.cpp:20:9: error: 'press_button' was not declared in this scope
   20 |     if (press_button() > lim) {
      |         ^~~~~~~~~~~~
insects.cpp:24:17: error: 'move_outside' was not declared in this scope
   24 |                 move_outside(i);
      |                 ^~~~~~~~~~~~
insects.cpp:30:13: error: 'move_inside' was not declared in this scope
   30 |             move_inside(i);
      |             ^~~~~~~~~~~
insects.cpp:31:17: error: 'press_button' was not declared in this scope
   31 |             if (press_button() > lim)
      |                 ^~~~~~~~~~~~
insects.cpp:32:17: error: 'move_outside' was not declared in this scope
   32 |                 move_outside(i);
      |                 ^~~~~~~~~~~~