oj.uz

Submission #988552

# Submission time Handle Problem Language Result Execution time Memory
988552 2024-05-25T07:03:08 Z cnn008 Rarest Insects (IOI22_insects) C++17
57.25 / 100
 86 ms 1992 KB 
#include "bits/stdc++.h"
using namespace std;

#include "insects.h"

#ifdef N_N_C
#include "debug.h"
#else
#define cebug(...) "Arya"
#endif

#define ll long long

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int rand(int l, int r){
    assert(l<=r);
    return uniform_int_distribution<int> (l,r)(rng);
}

const int N=1e5+5;
const int mod=1e9+7;

int min_cardinality(int n){
	set <int> s;
	vector <int> nw;
	// vector <int> p(n);
	// iota(p.begin(),p.end(),0);
	// shuffle(p.begin(),p.end(),rng);
	map <int,set<int>> mp;
	int cad;
	auto add = [&](int i) -> void{
		s.insert(i);
		move_inside(i);
	};
	auto del = [&](int i) -> void{
		s.erase(i);
		move_outside(i);
	};
	auto clear = [&]() -> void{
		auto _s=s;
		for(auto i:_s) del(i);
	};
	auto check = [&](int k) -> bool{
		nw.clear();
		auto op=*mp.lower_bound(k);
		for(auto i:op.second){
			if(s.find(i)!=s.end()) continue;
			add(i);
			if(press_button()>k) del(i);
			else nw.push_back(i);
		}
		mp[k]=s;
		return (int)s.size()>=cad*k;
	};
	for(int i=0; i<n; i++){
		add(i);
		if(press_button()>1) del(i);
	}
	cad=(int)s.size();
	clear();
	if(cad<=9){
		vector <int> vis(n,0);
		int type=0;
		for(int i=0; i<n; i++){
			if(!vis[i]){
				vis[i]=++type;
				move_inside(i);
				for(int j=i+1; j<n; j++){
					move_inside(j);
					int val=press_button();
					if(val==2) vis[j]=type;
					move_outside(j);
				}
				move_outside(i);
			}
		}
		map <int,int> brute;
		for(int i=0; i<n; i++) brute[vis[i]]++;
		int ans=INT_MAX;
		for(auto [x,y]:brute) ans=min(ans,y);
		return ans;
	}
	mp[1]=s;
	for(int i=0; i<n; i++) mp[n].insert(i);
	int l=2,r=n/cad,ans=1;
	while(l<=r){
		int mid=(l+r)/2;
		if(check(mid)){
			ans=mid;
			l=mid+1;
		}else{
			r=mid-1;
			for(auto i:nw) del(i);
		}
	}
	return ans;
}
/**  /\_/\
*   (= ._.)
*   / >💖 \>💕
**/

Compilation message

insects.cpp:98:9: warning: "/*" within comment [-Wcomment]
   98 | /**  /\_/\
      |

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 2 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 3 ms 472 KB Output is correct
9 Correct 4 ms 856 KB Output is correct
10 Correct 3 ms 344 KB Output is correct
11 Correct 2 ms 600 KB Output is correct
12 Correct 5 ms 344 KB Output is correct
13 Correct 3 ms 344 KB Output is correct
14 Correct 6 ms 344 KB Output is correct
15 Correct 7 ms 596 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 4 ms 880 KB Output is correct
18 Correct 3 ms 600 KB Output is correct
19 Correct 3 ms 696 KB Output is correct
20 Correct 3 ms 856 KB Output is correct
21 Correct 2 ms 600 KB Output is correct
22 Correct 1 ms 600 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 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 2 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 3 ms 472 KB Output is correct
9 Correct 4 ms 856 KB Output is correct
10 Correct 3 ms 344 KB Output is correct
11 Correct 2 ms 600 KB Output is correct
12 Correct 5 ms 344 KB Output is correct
13 Correct 3 ms 344 KB Output is correct
14 Correct 6 ms 344 KB Output is correct
15 Correct 7 ms 596 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 4 ms 880 KB Output is correct
18 Correct 3 ms 600 KB Output is correct
19 Correct 3 ms 696 KB Output is correct
20 Correct 3 ms 856 KB Output is correct
21 Correct 2 ms 600 KB Output is correct
22 Correct 1 ms 600 KB Output is correct
23 Correct 8 ms 444 KB Output is correct
24 Correct 5 ms 724 KB Output is correct
25 Correct 13 ms 1216 KB Output is correct
26 Correct 18 ms 1336 KB Output is correct
27 Correct 13 ms 440 KB Output is correct
28 Correct 5 ms 856 KB Output is correct
29 Correct 30 ms 600 KB Output is correct
30 Correct 14 ms 700 KB Output is correct
31 Correct 34 ms 440 KB Output is correct
32 Correct 37 ms 344 KB Output is correct
33 Correct 14 ms 1112 KB Output is correct
34 Correct 18 ms 1616 KB Output is correct
35 Correct 14 ms 1560 KB Output is correct
36 Correct 14 ms 1524 KB Output is correct
37 Correct 13 ms 1216 KB Output is correct
38 Correct 12 ms 956 KB Output is correct
39 Correct 14 ms 856 KB Output is correct
40 Correct 9 ms 856 KB Output is correct
41 Correct 5 ms 856 KB Output is correct

Subtask #3
32.25 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 392 KB Output is correct
7 Correct 19 ms 344 KB Output is correct
8 Correct 11 ms 1136 KB Output is correct
9 Correct 30 ms 1448 KB Output is correct
10 Correct 36 ms 1204 KB Output is correct
11 Correct 34 ms 600 KB Output is correct
12 Correct 19 ms 1524 KB Output is correct
13 Partially correct 49 ms 432 KB Output is partially correct
14 Correct 29 ms 964 KB Output is correct
15 Partially correct 60 ms 344 KB Output is partially correct
16 Partially correct 86 ms 592 KB Output is partially correct
17 Correct 27 ms 1804 KB Output is correct
18 Correct 31 ms 1800 KB Output is correct
19 Partially correct 31 ms 1992 KB Output is partially correct
20 Correct 35 ms 1628 KB Output is correct
21 Correct 31 ms 1412 KB Output is correct
22 Partially correct 35 ms 1304 KB Output is partially correct
23 Correct 26 ms 856 KB Output is correct
24 Correct 35 ms 1424 KB Output is correct
25 Correct 17 ms 1204 KB Output is correct
26 Correct 13 ms 1112 KB Output is correct
27 Correct 31 ms 1812 KB Output is correct
28 Correct 30 ms 1644 KB Output is correct
29 Partially correct 30 ms 1832 KB Output is partially correct
30 Partially correct 31 ms 1640 KB Output is partially correct
31 Correct 27 ms 1640 KB Output is correct
32 Correct 25 ms 1368 KB Output is correct
33 Correct 27 ms 1292 KB Output is correct
34 Correct 30 ms 908 KB Output is correct
35 Partially correct 34 ms 1296 KB Output is partially correct
36 Partially correct 27 ms 1372 KB Output is partially correct
37 Correct 25 ms 1304 KB Output is correct
38 Correct 33 ms 1180 KB Output is correct
39 Correct 26 ms 1384 KB Output is correct
40 Correct 26 ms 908 KB Output is correct
41 Partially correct 31 ms 1788 KB Output is partially correct
42 Partially correct 31 ms 1932 KB Output is partially correct
43 Partially correct 12 ms 600 KB Output is partially correct
44 Partially correct 62 ms 588 KB Output is partially correct
45 Correct 34 ms 412 KB Output is correct
46 Correct 17 ms 856 KB Output is correct
47 Correct 19 ms 1652 KB Output is correct
48 Correct 20 ms 1440 KB Output is correct