Submission #628286

#	Time	Username	Problem	Language	Result	Execution time	Memory
628286		Kaitokid	Rarest Insects (IOI22_insects)	C++17	Compilation error	0 ms	0 KiB

insects

#include<bits/stdc++.h>
using namespace std;
/*vector<int>A;
int fr[20009];
int cnt[3];
void move_inside(int x)
{
    cnt[0]++;
    cout<<"in "<<x<<endl;
    fr[A[x]]++;
}
void move_outside(int x)
{
    cnt[1]++;
    cout<<"out "<<x<<endl;
    fr[A[x]]--;
}
int press_button()
{
    cnt[2]++;
    cout<<"press"<<endl;
    int res=0;
    for(int i=0;i<2000;i++)res=max(res,fr[i]);
    return res;
}
*/
int n,dst;
stack<int>st;
bool nt[20009];

bool ch(int x)
{
    while(!st.empty()){move_outside(st.top());st.pop();}
    int sz=0;
    vector<int>g;
    for(int i=0;i<n;i++)
    {
        if(nt[i])continue;
        if(sz==0){st.push(i);move_inside(i);sz++;continue;}
        move_inside(i);
        if(press_button()>x){move_outside(i);g.push_back(i);continue;}
        sz++;
        st.push(i);
    }
    if(sz==x*dst)
    {
        while(!st.empty()){nt[st.top()]=true;move_outside(st.top());st.pop();}
        return true;

    }
    for(int i=0;i<g.size();i++)nt[g[i]]=true;
    return false;

}
int rss;
int min_cardinality(int N)
{
    rss=0;
    n=N;
    dst=0;
    move_inside(0);
    st.push(0);
    dst++;
    for(int i=1;i<n;i++)
    {
        move_inside(i);
        if(press_button()==1){st.push(i);dst++;}
           else move_outside(i);
    }
    int l=1,r=n/dst;
    while(l<r)
    {
        int mid=(l+r+1)/2;
        if(ch(mid)){l=0;r-=mid;rss+=mid;}
        else r=mid-1;
    }
    return l+rss;
}
/*
int main()
{

   A={5,8,9,5,9,9};
   cout<<min_cardinality(6)<<endl;
   cout<<cnt[0]<<" "<<cnt[1]<<" "<<cnt[2]<<endl;
    return 0;
}
*/

Compilation message (stderr)

insects.cpp: In function 'bool ch(int)':
insects.cpp:33:24: error: 'move_outside' was not declared in this scope
   33 |     while(!st.empty()){move_outside(st.top());st.pop();}
      |                        ^~~~~~~~~~~~
insects.cpp:39:30: error: 'move_inside' was not declared in this scope
   39 |         if(sz==0){st.push(i);move_inside(i);sz++;continue;}
      |                              ^~~~~~~~~~~
insects.cpp:40:9: error: 'move_inside' was not declared in this scope
   40 |         move_inside(i);
      |         ^~~~~~~~~~~
insects.cpp:41:12: error: 'press_button' was not declared in this scope
   41 |         if(press_button()>x){move_outside(i);g.push_back(i);continue;}
      |            ^~~~~~~~~~~~
insects.cpp:41:30: error: 'move_outside' was not declared in this scope
   41 |         if(press_button()>x){move_outside(i);g.push_back(i);continue;}
      |                              ^~~~~~~~~~~~
insects.cpp:47:46: error: 'move_outside' was not declared in this scope
   47 |         while(!st.empty()){nt[st.top()]=true;move_outside(st.top());st.pop();}
      |                                              ^~~~~~~~~~~~
insects.cpp:51:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   51 |     for(int i=0;i<g.size();i++)nt[g[i]]=true;
      |                 ~^~~~~~~~~
insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:61:5: error: 'move_inside' was not declared in this scope
   61 |     move_inside(0);
      |     ^~~~~~~~~~~
insects.cpp:67:12: error: 'press_button' was not declared in this scope
   67 |         if(press_button()==1){st.push(i);dst++;}
      |            ^~~~~~~~~~~~
insects.cpp:68:17: error: 'move_outside' was not declared in this scope
   68 |            else move_outside(i);
      |                 ^~~~~~~~~~~~