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Submission #830894

# Submission time Handle Problem Language Result Execution time Memory
830894 2023-08-19T12:39:50 Z tolbi Rarest Insects (IOI22_insects) C++17
0 / 100
 5 ms 312 KB 
#include <bits/stdc++.h>
using namespace std;
mt19937 ayahya(chrono::high_resolution_clock().now().time_since_epoch().count());
#include "insects.h"
int min_cardinality(int n) {
    function<int(int)> f;
    map<int,int> cev;
    set<int> olan;
    for (int i = 0; i < n; ++i)
    {
        olan.insert(i);
    }
    vector<int> kullandim;
    vector<int> kullanmadim;
    f = [&](int x)->int{
        if (cev.count(x)) return cev[x];
        int ans = 0;
        vector<int> crr;
        for (auto it : olan){
            crr.push_back(it);
            move_inside(it);
            if (press_button()>x){
                ans++;
                crr.pop_back();
                kullanmadim.push_back(it);
                move_outside(it);
            }
            else kullandim.push_back(it);
        }
        for (int i = 0; i < crr.size(); ++i)
        {
            move_outside(crr[i]);
        }
        return cev[x]=ans;
    };
    int diff = n-f(1);
    if (diff==1) return n;
    int l = 1, r = n/diff;
    int hueh = 0;
    while (l<r){
        int mid = l+(r-l+1)/2;
        int hayda = f(mid);
        if (hayda+hueh>n-(mid*diff)){
            r=mid-1;
            for (auto &it : kullanmadim){
                olan.erase(it);
            }
        }
        else {
            l = mid;
            hueh+=hayda;
            for (auto &it : kullandim){
                olan.erase(it);
            }
        }
        kullandim.clear();
        kullanmadim.clear();
    }
    return l;
}

Compilation message

insects.cpp: In lambda function:
insects.cpp:30:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |         for (int i = 0; i < crr.size(); ++i)
      |                         ~~^~~~~~~~~~~~

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Incorrect 5 ms 312 KB Wrong answer.
9 Halted 0 ms 0 KB -

Subtask #2
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Incorrect 5 ms 312 KB Wrong answer.
9 Halted 0 ms 0 KB -

Subtask #3
0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Incorrect 0 ms 208 KB Wrong answer.
7 Halted 0 ms 0 KB -