oj.uz

Submission #988574

# Submission time Handle Problem Language Result Execution time Memory
988574 2024-05-25T07:43:24 Z cnn008 Rarest Insects (IOI22_insects) C++17
100 / 100
 42 ms 1952 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());

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{
		if(s.find(i)!=s.end()) return;
		s.insert(i);
		move_inside(p[i]);
	};
	auto del = [&](int i) -> void{
		s.erase(s.find(i));
		move_outside(p[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;
			if((int)s.size()>=cad*k) return 1;
			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();
	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:69:9: warning: "/*" within comment [-Wcomment]
   69 | /**  /\_/\
      |

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 600 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 3 ms 692 KB Output is correct
9 Correct 3 ms 600 KB Output is correct
10 Correct 3 ms 344 KB Output is correct
11 Correct 2 ms 600 KB Output is correct
12 Correct 3 ms 600 KB Output is correct
13 Correct 4 ms 600 KB Output is correct
14 Correct 3 ms 692 KB Output is correct
15 Correct 3 ms 600 KB Output is correct
16 Correct 3 ms 600 KB Output is correct
17 Correct 2 ms 344 KB Output is correct
18 Correct 3 ms 600 KB Output is correct
19 Correct 3 ms 468 KB Output is correct
20 Correct 3 ms 856 KB Output is correct
21 Correct 2 ms 600 KB Output is correct
22 Correct 2 ms 608 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 600 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 3 ms 692 KB Output is correct
9 Correct 3 ms 600 KB Output is correct
10 Correct 3 ms 344 KB Output is correct
11 Correct 2 ms 600 KB Output is correct
12 Correct 3 ms 600 KB Output is correct
13 Correct 4 ms 600 KB Output is correct
14 Correct 3 ms 692 KB Output is correct
15 Correct 3 ms 600 KB Output is correct
16 Correct 3 ms 600 KB Output is correct
17 Correct 2 ms 344 KB Output is correct
18 Correct 3 ms 600 KB Output is correct
19 Correct 3 ms 468 KB Output is correct
20 Correct 3 ms 856 KB Output is correct
21 Correct 2 ms 600 KB Output is correct
22 Correct 2 ms 608 KB Output is correct
23 Correct 10 ms 856 KB Output is correct
24 Correct 5 ms 856 KB Output is correct
25 Correct 17 ms 544 KB Output is correct
26 Correct 13 ms 1224 KB Output is correct
27 Correct 12 ms 700 KB Output is correct
28 Correct 6 ms 600 KB Output is correct
29 Correct 12 ms 1108 KB Output is correct
30 Correct 14 ms 792 KB Output is correct
31 Correct 10 ms 1368 KB Output is correct
32 Correct 13 ms 1248 KB Output is correct
33 Correct 11 ms 1112 KB Output is correct
34 Correct 13 ms 1204 KB Output is correct
35 Correct 12 ms 856 KB Output is correct
36 Correct 12 ms 692 KB Output is correct
37 Correct 15 ms 1472 KB Output is correct
38 Correct 11 ms 804 KB Output is correct
39 Correct 12 ms 724 KB Output is correct
40 Correct 8 ms 856 KB Output is correct
41 Correct 5 ms 1112 KB Output is correct

Subtask #3
75.0 / 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 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 344 KB Output is correct
7 Correct 19 ms 1212 KB Output is correct
8 Correct 10 ms 1368 KB Output is correct
9 Correct 27 ms 1212 KB Output is correct
10 Correct 27 ms 924 KB Output is correct
11 Correct 26 ms 876 KB Output is correct
12 Correct 14 ms 856 KB Output is correct
13 Correct 28 ms 972 KB Output is correct
14 Correct 28 ms 948 KB Output is correct
15 Correct 21 ms 1632 KB Output is correct
16 Correct 20 ms 1672 KB Output is correct
17 Correct 21 ms 1808 KB Output is correct
18 Correct 26 ms 1952 KB Output is correct
19 Correct 22 ms 1736 KB Output is correct
20 Correct 24 ms 1092 KB Output is correct
21 Correct 28 ms 1624 KB Output is correct
22 Correct 42 ms 936 KB Output is correct
23 Correct 22 ms 924 KB Output is correct
24 Correct 24 ms 1216 KB Output is correct
25 Correct 14 ms 1388 KB Output is correct
26 Correct 9 ms 856 KB Output is correct
27 Correct 28 ms 1424 KB Output is correct
28 Correct 24 ms 1196 KB Output is correct
29 Correct 22 ms 1636 KB Output is correct
30 Correct 21 ms 1196 KB Output is correct
31 Correct 38 ms 1552 KB Output is correct
32 Correct 36 ms 1456 KB Output is correct
33 Correct 29 ms 856 KB Output is correct
34 Correct 27 ms 1208 KB Output is correct
35 Correct 22 ms 1108 KB Output is correct
36 Correct 26 ms 1360 KB Output is correct
37 Correct 30 ms 1172 KB Output is correct
38 Correct 28 ms 1648 KB Output is correct
39 Correct 24 ms 1696 KB Output is correct
40 Correct 24 ms 956 KB Output is correct
41 Correct 24 ms 1120 KB Output is correct
42 Correct 25 ms 1672 KB Output is correct
43 Correct 7 ms 860 KB Output is correct
44 Correct 21 ms 952 KB Output is correct
45 Correct 18 ms 1612 KB Output is correct
46 Correct 18 ms 1136 KB Output is correct
47 Correct 15 ms 1200 KB Output is correct
48 Correct 17 ms 968 KB Output is correct