Submission #789234

#	Time	Username	Problem	Language	Result	Execution time	Memory
789234		Denkata	Rarest Insects (IOI22_insects)	C++17	99.95 / 100	51 ms	460 KiB

insects

#include<bits/stdc++.h>
#include "insects.h"
//#include "grader.cpp"
using namespace std;
int i,j,p,q,n,m,k,cnt,mx,ans,br,mi,mo,pb;
int cur_size,distinct;
vector <int> st;
vector <int> a,b;
int used[2006];
void add(int cur_size)
{
    bool fl = false;
    for(auto i:a)
    {
        if(fl)
        {
            b.push_back(i);
            continue;
        }
        move_inside(i);
        st.push_back(i);
        if(press_button()>cur_size)
        {
            //cout<<i<<endl;
            st.pop_back();
            b.push_back(i);
            move_outside(i);
        }
        else br++,used[i] = 1;
        if(br==cur_size*distinct)
        {
            fl = true;
        }
    }
    cnt = cur_size;
}
void rem()
{
    for(auto i:st)
    {
        used[i] = false;
        br--;
        move_outside(i);
    }
}
int min_cardinality(int N)
{
    n = N;

    cur_size = 1;
    j = 1;
    for(i=0; i<n; i++)
    {
        if(used[i]==0)
        {
            move_inside(i);
            if(press_button()>cur_size)
            {
                //cout<<i<<endl;
                move_outside(i);
                a.push_back(i);
            }
            else br++,used[i] = 1;
        }
    }
    distinct = br;

    int l,r,mid;
    l = 2;
    r = n/distinct;
    ans = 1;
    cnt = cur_size;
    while(l<=r)///
    {
        mid = (l+r)/2;
        st.clear();
        b.clear();
        if(mid>cnt)
        {
            add(mid);
        }
        //  cout<<mid<<" "<<br<<endl;
        if(br==mid*distinct)
        {
            l = mid+1;
            ans = mid;
            a = b;
            cnt = mid;
        }
        else
        {
            a = st;
            rem();
            r = mid-1;
            cnt = ans;
        }
    }
    return ans;
}
/*

*/

• Subtask 1: 10 / 10
• Subtask 2: 15 / 15
• Subtask 3: 74.95 / 75