Submission #1077703

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1077703	2024-08-27T08:39:27 Z	pcc	Rarest Insects (IOI22_insects)	C++17	51.49 / 100	146 ms	1112 KB

insects

#include "insects.h"
#include <bits/stdc++.h>
using namespace std;

const int mxn = 2022;
vector<int> v[mxn];
set<int> st;
int N;
int cnt = 0;

void del(int k){
	assert(st.find(k) != st.end());
	st.erase(k);
	move_outside(k);
	return;
}

void add(int k){
	assert(st.find(k) == st.end());
	st.insert(k);
	move_inside(k);
	return;
}

int ask(){
	int re = press_button();
	return re;
}

bool check(int lim){
	for(int i = lim+1;i<=N;i++){
		while(!v[i].empty()){
			auto now = v[i].back();
			v[i].pop_back();
			del(now);
		}
	}
	for(int i = 0;i<N;i++){
		if(st.find(i) == st.end()){
			add(i);
			int re = ask();
			if(re>lim)del(i);
			else v[re].push_back(i);
		}
	}
	return lim*cnt == st.size();
}

int min_cardinality(int NN) {
	N = NN;
	int l = 1,r = N;
	check(1);
	cnt = st.size();
	while(l != r){
		int mid = (l+r+1)>>1;
		if(check(mid))l = mid;
		else r = mid-1;
	}
	return l;
}

Compilation message

insects.cpp: In function 'bool check(int)':
insects.cpp:46:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::set<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |  return lim*cnt == st.size();
      |         ~~~~~~~~^~~~~~~~~~~~

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	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	3 ms	484 KB	Output is correct
7	Correct	1 ms	344 KB	Output is correct
8	Correct	3 ms	344 KB	Output is correct
9	Correct	3 ms	344 KB	Output is correct
10	Correct	8 ms	740 KB	Output is correct
11	Correct	5 ms	344 KB	Output is correct
12	Correct	5 ms	344 KB	Output is correct
13	Correct	6 ms	344 KB	Output is correct
14	Correct	5 ms	344 KB	Output is correct
15	Correct	6 ms	484 KB	Output is correct
16	Correct	9 ms	492 KB	Output is correct
17	Correct	7 ms	344 KB	Output is correct
18	Correct	5 ms	344 KB	Output is correct
19	Correct	5 ms	344 KB	Output is correct
20	Correct	4 ms	344 KB	Output is correct
21	Correct	3 ms	344 KB	Output is correct
22	Correct	2 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	1 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	3 ms	484 KB	Output is correct
7	Correct	1 ms	344 KB	Output is correct
8	Correct	3 ms	344 KB	Output is correct
9	Correct	3 ms	344 KB	Output is correct
10	Correct	8 ms	740 KB	Output is correct
11	Correct	5 ms	344 KB	Output is correct
12	Correct	5 ms	344 KB	Output is correct
13	Correct	6 ms	344 KB	Output is correct
14	Correct	5 ms	344 KB	Output is correct
15	Correct	6 ms	484 KB	Output is correct
16	Correct	9 ms	492 KB	Output is correct
17	Correct	7 ms	344 KB	Output is correct
18	Correct	5 ms	344 KB	Output is correct
19	Correct	5 ms	344 KB	Output is correct
20	Correct	4 ms	344 KB	Output is correct
21	Correct	3 ms	344 KB	Output is correct
22	Correct	2 ms	344 KB	Output is correct
23	Correct	22 ms	520 KB	Output is correct
24	Correct	8 ms	344 KB	Output is correct
25	Correct	10 ms	748 KB	Output is correct
26	Correct	28 ms	600 KB	Output is correct
27	Correct	59 ms	344 KB	Output is correct
28	Correct	19 ms	504 KB	Output is correct
29	Correct	52 ms	480 KB	Output is correct
30	Correct	33 ms	600 KB	Output is correct
31	Correct	18 ms	760 KB	Output is correct
32	Correct	31 ms	600 KB	Output is correct
33	Correct	19 ms	732 KB	Output is correct
34	Correct	21 ms	508 KB	Output is correct
35	Correct	27 ms	344 KB	Output is correct
36	Correct	19 ms	484 KB	Output is correct
37	Correct	36 ms	488 KB	Output is correct
38	Correct	23 ms	512 KB	Output is correct
39	Correct	19 ms	1112 KB	Output is correct
40	Correct	9 ms	344 KB	Output is correct
41	Correct	12 ms	600 KB	Output is correct

Subtask #3
26.49 / 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	0 ms	344 KB	Output is correct
6	Correct	1 ms	344 KB	Output is correct
7	Correct	37 ms	840 KB	Output is correct
8	Correct	7 ms	544 KB	Output is correct
9	Partially correct	29 ms	816 KB	Output is partially correct
10	Partially correct	114 ms	776 KB	Output is partially correct
11	Partially correct	142 ms	476 KB	Output is partially correct
12	Partially correct	62 ms	600 KB	Output is partially correct
13	Partially correct	146 ms	344 KB	Output is partially correct
14	Partially correct	68 ms	536 KB	Output is partially correct
15	Partially correct	29 ms	572 KB	Output is partially correct
16	Partially correct	41 ms	976 KB	Output is partially correct
17	Partially correct	48 ms	736 KB	Output is partially correct
18	Partially correct	35 ms	716 KB	Output is partially correct
19	Partially correct	65 ms	460 KB	Output is partially correct
20	Partially correct	48 ms	520 KB	Output is partially correct
21	Partially correct	64 ms	500 KB	Output is partially correct
22	Partially correct	59 ms	776 KB	Output is partially correct
23	Partially correct	38 ms	568 KB	Output is partially correct
24	Partially correct	33 ms	344 KB	Output is partially correct
25	Correct	26 ms	744 KB	Output is correct
26	Correct	26 ms	536 KB	Output is correct
27	Correct	30 ms	472 KB	Output is correct
28	Partially correct	34 ms	564 KB	Output is partially correct
29	Correct	26 ms	484 KB	Output is correct
30	Correct	27 ms	484 KB	Output is correct
31	Partially correct	60 ms	776 KB	Output is partially correct
32	Partially correct	52 ms	592 KB	Output is partially correct
33	Partially correct	79 ms	600 KB	Output is partially correct
34	Partially correct	75 ms	488 KB	Output is partially correct
35	Correct	32 ms	848 KB	Output is correct
36	Correct	33 ms	592 KB	Output is correct
37	Partially correct	61 ms	744 KB	Output is partially correct
38	Partially correct	64 ms	476 KB	Output is partially correct
39	Correct	17 ms	344 KB	Output is correct
40	Correct	21 ms	504 KB	Output is correct
41	Correct	30 ms	740 KB	Output is correct
42	Correct	20 ms	764 KB	Output is correct
43	Partially correct	27 ms	344 KB	Output is partially correct
44	Partially correct	118 ms	752 KB	Output is partially correct
45	Partially correct	36 ms	592 KB	Output is partially correct
46	Partially correct	71 ms	768 KB	Output is partially correct
47	Partially correct	74 ms	600 KB	Output is partially correct
48	Partially correct	66 ms	592 KB	Output is partially correct

Submission #1077703

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 15.0 / 15.0

Subtask #3 26.49 / 75.0

Subtask #1
10.0 / 10.0

Subtask #2
15.0 / 15.0

Subtask #3
26.49 / 75.0