oj.uz

Submission #988549

# Submission time Handle Problem Language Result Execution time Memory
988549 2024-05-25T07:00:11 Z cnn008 Rarest Insects (IOI22_insects) C++17
57.25 / 100
 95 ms 1872 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);
		}
		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();
	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:96:9: warning: "/*" within comment [-Wcomment]
   96 | /**  /\_/\
      |          
insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:39:7: warning: variable 'clear' set but not used [-Wunused-but-set-variable]
   39 |  auto clear = [&]() -> void{
      |       ^~~~~

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 340 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 856 KB Output is correct
8 Correct 3 ms 856 KB Output is correct
9 Correct 5 ms 600 KB Output is correct
10 Correct 3 ms 344 KB Output is correct
11 Correct 1 ms 596 KB Output is correct
12 Correct 5 ms 344 KB Output is correct
13 Correct 4 ms 344 KB Output is correct
14 Correct 5 ms 344 KB Output is correct
15 Correct 14 ms 344 KB Output is correct
16 Correct 3 ms 600 KB Output is correct
17 Correct 4 ms 620 KB Output is correct
18 Correct 5 ms 600 KB Output is correct
19 Correct 3 ms 600 KB Output is correct
20 Correct 3 ms 600 KB Output is correct
21 Correct 3 ms 344 KB Output is correct
22 Correct 2 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 340 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 856 KB Output is correct
8 Correct 3 ms 856 KB Output is correct
9 Correct 5 ms 600 KB Output is correct
10 Correct 3 ms 344 KB Output is correct
11 Correct 1 ms 596 KB Output is correct
12 Correct 5 ms 344 KB Output is correct
13 Correct 4 ms 344 KB Output is correct
14 Correct 5 ms 344 KB Output is correct
15 Correct 14 ms 344 KB Output is correct
16 Correct 3 ms 600 KB Output is correct
17 Correct 4 ms 620 KB Output is correct
18 Correct 5 ms 600 KB Output is correct
19 Correct 3 ms 600 KB Output is correct
20 Correct 3 ms 600 KB Output is correct
21 Correct 3 ms 344 KB Output is correct
22 Correct 2 ms 600 KB Output is correct
23 Correct 17 ms 600 KB Output is correct
24 Correct 5 ms 596 KB Output is correct
25 Correct 13 ms 848 KB Output is correct
26 Correct 22 ms 1464 KB Output is correct
27 Correct 16 ms 440 KB Output is correct
28 Correct 5 ms 856 KB Output is correct
29 Correct 31 ms 600 KB Output is correct
30 Correct 32 ms 636 KB Output is correct
31 Correct 30 ms 440 KB Output is correct
32 Correct 60 ms 600 KB Output is correct
33 Correct 26 ms 848 KB Output is correct
34 Correct 17 ms 960 KB Output is correct
35 Correct 15 ms 1116 KB Output is correct
36 Correct 20 ms 948 KB Output is correct
37 Correct 15 ms 948 KB Output is correct
38 Correct 16 ms 600 KB Output is correct
39 Correct 13 ms 860 KB Output is correct
40 Correct 9 ms 860 KB Output is correct
41 Correct 6 ms 956 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 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 596 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 19 ms 440 KB Output is correct
8 Correct 11 ms 1568 KB Output is correct
9 Correct 29 ms 1360 KB Output is correct
10 Partially correct 42 ms 1212 KB Output is partially correct
11 Correct 23 ms 592 KB Output is correct
12 Correct 15 ms 860 KB Output is correct
13 Partially correct 44 ms 436 KB Output is partially correct
14 Partially correct 59 ms 1104 KB Output is partially correct
15 Partially correct 66 ms 600 KB Output is partially correct
16 Partially correct 95 ms 592 KB Output is partially correct
17 Partially correct 32 ms 1216 KB Output is partially correct
18 Partially correct 43 ms 1424 KB Output is partially correct
19 Partially correct 37 ms 1872 KB Output is partially correct
20 Partially correct 37 ms 1188 KB Output is partially correct
21 Partially correct 41 ms 1464 KB Output is partially correct
22 Partially correct 41 ms 1616 KB Output is partially correct
23 Partially correct 43 ms 1188 KB Output is partially correct
24 Correct 26 ms 1192 KB Output is correct
25 Correct 16 ms 1488 KB Output is correct
26 Correct 9 ms 708 KB Output is correct
27 Correct 29 ms 1560 KB Output is correct
28 Correct 28 ms 1568 KB Output is correct
29 Partially correct 35 ms 1192 KB Output is partially correct
30 Partially correct 40 ms 1188 KB Output is partially correct
31 Partially correct 37 ms 1444 KB Output is partially correct
32 Partially correct 38 ms 1172 KB Output is partially correct
33 Partially correct 42 ms 928 KB Output is partially correct
34 Partially correct 59 ms 1360 KB Output is partially correct
35 Partially correct 30 ms 1140 KB Output is partially correct
36 Partially correct 35 ms 1752 KB Output is partially correct
37 Partially correct 44 ms 1360 KB Output is partially correct
38 Partially correct 36 ms 1392 KB Output is partially correct
39 Correct 27 ms 1224 KB Output is correct
40 Correct 31 ms 1168 KB Output is correct
41 Partially correct 36 ms 1452 KB Output is partially correct
42 Partially correct 32 ms 1564 KB Output is partially correct
43 Partially correct 19 ms 600 KB Output is partially correct
44 Partially correct 56 ms 600 KB Output is partially correct
45 Correct 29 ms 592 KB Output is correct
46 Correct 14 ms 600 KB Output is correct
47 Correct 14 ms 1112 KB Output is correct
48 Correct 17 ms 1232 KB Output is correct