Submission #936617

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
936617	2024-03-02T11:53:52 Z	GrindMachine	Rarest Insects (IOI22_insects)	C++17	57.14 / 100	87 ms	1432 KB

insects

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
 
using namespace std;
using namespace __gnu_pbds;
 
template<typename T> using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
typedef long long int ll;
typedef long double ld;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
 
#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL)
#define pb push_back
#define endl '\n'
#define sz(a) (int)a.size()
#define setbits(x) __builtin_popcountll(x)
#define ff first
#define ss second
#define conts continue
#define ceil2(x,y) ((x+y-1)/(y))
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
#define yes cout << "Yes" << endl
#define no cout << "No" << endl
 
#define rep(i,n) for(int i = 0; i < n; ++i)
#define rep1(i,n) for(int i = 1; i <= n; ++i)
#define rev(i,s,e) for(int i = s; i >= e; --i)
#define trav(i,a) for(auto &i : a)
 
template<typename T>
void amin(T &a, T b) {
    a = min(a,b);
}
 
template<typename T>
void amax(T &a, T b) {
    a = max(a,b);
}
 
#ifdef LOCAL
#include "debug.h"
#else
#define debug(x) 42
#endif
 
/*
 
 
 
*/
 
const int MOD = 1e9 + 7;
const int N = 1e5 + 5;
const int inf1 = int(1e9) + 5;
const ll inf2 = ll(1e18) + 5;
 
#include "insects.h"
 
int min_cardinality(int n) {
    vector<int> uniq_guys;
 
    rep(i,n){
        move_inside(i);
        int res = press_button();
        if(res >= 2){
            move_outside(i);
        }
        else{
            uniq_guys.pb(i);
        }
    }
 
    trav(i,uniq_guys){
        move_outside(i);
    }
    
    if(sz(uniq_guys) <= 8){
        vector<bool> marked(n);
        int ans = inf1;

        rep(iter,sz(uniq_guys)-1){
            vector<int> curr;

            rep(i,n){
                if(marked[i]) conts;
                move_inside(i);
                int res = press_button();
                if(res == sz(curr)+1){
                    curr.pb(i);
                }
                else{
                    move_outside(i);
                }
            }

            amin(ans,(int)sz(curr));

            trav(i,curr){
                move_outside(i);
                marked[i] = 1;
            }
        }

        int unmarked = count(all(marked),0);
        amin(ans,unmarked);

        return ans;
    }

    auto ok = [&](int mid){
        vector<int> good, bad;
 
        rev(i,n-1,0){
            move_inside(i);
            int res = press_button();
            if(res > mid){
                bad.pb(i);
                move_outside(i);
            }
            else{
                good.pb(i);
            }
        }
 
        trav(i,good){
            move_outside(i);
        }

        int curr_uniq = 0;
        trav(i,bad){
            curr_uniq += binary_search(all(uniq_guys),i);
        }

        return curr_uniq < sz(uniq_guys);
    };
 
    int l = 1, r = n/sz(uniq_guys)-1;
    int ans = n/sz(uniq_guys);
 
    while(l <= r){
        int mid = (l+r) >> 1;
        // is min <= mid?
        if(ok(mid)){
            ans = mid;
            r = mid-1;
        }
        else{
            l = mid+1;
        }
    }
 
    return ans;
}

Subtask #1

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	344 KB	Output is correct
2	Correct	0 ms	344 KB	Output is correct
3	Correct	0 ms	344 KB	Output is correct
4	Correct	0 ms	344 KB	Output is correct
5	Correct	0 ms	344 KB	Output is correct
6	Correct	1 ms	344 KB	Output is correct
7	Correct	1 ms	344 KB	Output is correct
8	Correct	4 ms	600 KB	Output is correct
9	Correct	5 ms	600 KB	Output is correct
10	Correct	2 ms	344 KB	Output is correct
11	Correct	1 ms	344 KB	Output is correct
12	Correct	3 ms	344 KB	Output is correct
13	Correct	3 ms	436 KB	Output is correct
14	Correct	3 ms	344 KB	Output is correct
15	Correct	4 ms	344 KB	Output is correct
16	Correct	4 ms	600 KB	Output is correct
17	Correct	4 ms	600 KB	Output is correct
18	Correct	4 ms	344 KB	Output is correct
19	Correct	3 ms	344 KB	Output is correct
20	Correct	2 ms	432 KB	Output is correct
21	Correct	2 ms	344 KB	Output is correct
22	Correct	1 ms	344 KB	Output is correct

Subtask #2

15.0 / 15.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	344 KB	Output is correct
2	Correct	0 ms	344 KB	Output is correct
3	Correct	0 ms	344 KB	Output is correct
4	Correct	0 ms	344 KB	Output is correct
5	Correct	0 ms	344 KB	Output is correct
6	Correct	1 ms	344 KB	Output is correct
7	Correct	1 ms	344 KB	Output is correct
8	Correct	4 ms	600 KB	Output is correct
9	Correct	5 ms	600 KB	Output is correct
10	Correct	2 ms	344 KB	Output is correct
11	Correct	1 ms	344 KB	Output is correct
12	Correct	3 ms	344 KB	Output is correct
13	Correct	3 ms	436 KB	Output is correct
14	Correct	3 ms	344 KB	Output is correct
15	Correct	4 ms	344 KB	Output is correct
16	Correct	4 ms	600 KB	Output is correct
17	Correct	4 ms	600 KB	Output is correct
18	Correct	4 ms	344 KB	Output is correct
19	Correct	3 ms	344 KB	Output is correct
20	Correct	2 ms	432 KB	Output is correct
21	Correct	2 ms	344 KB	Output is correct
22	Correct	1 ms	344 KB	Output is correct
23	Correct	4 ms	344 KB	Output is correct
24	Correct	4 ms	856 KB	Output is correct
25	Correct	31 ms	672 KB	Output is correct
26	Correct	30 ms	444 KB	Output is correct
27	Correct	10 ms	672 KB	Output is correct
28	Correct	8 ms	600 KB	Output is correct
29	Correct	15 ms	600 KB	Output is correct
30	Correct	27 ms	668 KB	Output is correct
31	Correct	16 ms	600 KB	Output is correct
32	Correct	24 ms	592 KB	Output is correct
33	Correct	36 ms	1432 KB	Output is correct
34	Correct	34 ms	676 KB	Output is correct
35	Correct	31 ms	1172 KB	Output is correct
36	Correct	32 ms	600 KB	Output is correct
37	Correct	19 ms	440 KB	Output is correct
38	Correct	16 ms	856 KB	Output is correct
39	Correct	13 ms	592 KB	Output is correct
40	Correct	8 ms	600 KB	Output is correct
41	Correct	4 ms	856 KB	Output is correct

Subtask #3

32.14 / 75.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	344 KB	Output is correct
2	Correct	0 ms	344 KB	Output is correct
3	Correct	0 ms	344 KB	Output is correct
4	Correct	0 ms	344 KB	Output is correct
5	Correct	0 ms	344 KB	Output is correct
6	Correct	1 ms	344 KB	Output is correct
7	Correct	8 ms	344 KB	Output is correct
8	Correct	8 ms	604 KB	Output is correct
9	Partially correct	66 ms	676 KB	Output is partially correct
10	Partially correct	54 ms	932 KB	Output is partially correct
11	Correct	18 ms	428 KB	Output is correct
12	Correct	18 ms	924 KB	Output is correct
13	Partially correct	30 ms	664 KB	Output is partially correct
14	Partially correct	61 ms	1188 KB	Output is partially correct
15	Partially correct	44 ms	592 KB	Output is partially correct
16	Partially correct	53 ms	592 KB	Output is partially correct
17	Partially correct	87 ms	916 KB	Output is partially correct
18	Partially correct	71 ms	680 KB	Output is partially correct
19	Partially correct	86 ms	1164 KB	Output is partially correct
20	Partially correct	74 ms	672 KB	Output is partially correct
21	Partially correct	58 ms	856 KB	Output is partially correct
22	Partially correct	59 ms	920 KB	Output is partially correct
23	Partially correct	33 ms	600 KB	Output is partially correct
24	Correct	25 ms	680 KB	Output is correct
25	Correct	19 ms	1112 KB	Output is correct
26	Correct	10 ms	456 KB	Output is correct
27	Partially correct	62 ms	908 KB	Output is partially correct
28	Partially correct	58 ms	912 KB	Output is partially correct
29	Partially correct	73 ms	924 KB	Output is partially correct
30	Partially correct	67 ms	1352 KB	Output is partially correct
31	Partially correct	66 ms	920 KB	Output is partially correct
32	Partially correct	56 ms	1108 KB	Output is partially correct
33	Partially correct	48 ms	848 KB	Output is partially correct
34	Partially correct	54 ms	680 KB	Output is partially correct
35	Partially correct	62 ms	680 KB	Output is partially correct
36	Partially correct	55 ms	1192 KB	Output is partially correct
37	Partially correct	51 ms	924 KB	Output is partially correct
38	Partially correct	57 ms	680 KB	Output is partially correct
39	Partially correct	45 ms	692 KB	Output is partially correct
40	Partially correct	44 ms	684 KB	Output is partially correct
41	Partially correct	60 ms	920 KB	Output is partially correct
42	Partially correct	64 ms	856 KB	Output is partially correct
43	Correct	7 ms	600 KB	Output is correct
44	Correct	16 ms	924 KB	Output is correct
45	Correct	19 ms	596 KB	Output is correct
46	Correct	17 ms	856 KB	Output is correct
47	Correct	16 ms	692 KB	Output is correct
48	Correct	20 ms	864 KB	Output is correct