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Submission #1057785

# Submission time Handle Problem Language Result Execution time Memory
1057785 2024-08-14T06:03:05 Z fuad27 Rarest Insects (IOI22_insects) C++17
52.7 / 100
 106 ms 944 KB 
#include "insects.h"
#include <bits/stdc++.h>
using namespace std;
int min_cardinality(int N) {
	int distcnt = 0;
	set<int> idxs;
	for(int i = 0;i<N;i++) {
		move_inside(i);
		if(press_button() <= 1){
			idxs.insert(i);
			distcnt++;
			continue;
		}
		move_outside(i);
	}
	int ans=1;
	int prev = 1;
	int lo = 2, hi = N/distcnt;
	while(lo <= hi) {
		int mid = (lo+hi)/2;
		if(prev < mid) {
			for(int j = 0;j<N;j++) {
				if(idxs.find(j)!=idxs.end())continue;
				move_inside(j);
				if(press_button() <= mid) {
					idxs.insert(j);
					continue;
				}
				move_outside(j);
			}
		}
		else {
			do {
				move_outside(*(--idxs.end()));
				idxs.erase(--idxs.end());
			}while(press_button() > mid);
			for(int j = 0;j<N;j++) {
				if(idxs.find(j)!=idxs.end())continue;
				move_inside(j);
				if(press_button() <= mid) {
					idxs.insert(j);
					continue;
				}
				move_outside(j);
			}
		}
		if(idxs.size() == distcnt*mid) {
			lo = mid+1;
			ans=mid;
		}
		else {
			hi=mid-1;
		}
		prev=mid;
	}
	return ans;
}

Compilation message

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:47:18: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   47 |   if(idxs.size() == distcnt*mid) {
      |      ~~~~~~~~~~~~^~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 2 ms 600 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 2 ms 440 KB Output is correct
9 Correct 5 ms 344 KB Output is correct
10 Correct 6 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 6 ms 344 KB Output is correct
13 Correct 5 ms 344 KB Output is correct
14 Correct 3 ms 436 KB Output is correct
15 Correct 3 ms 344 KB Output is correct
16 Correct 5 ms 604 KB Output is correct
17 Correct 3 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 3 ms 344 KB Output is correct
21 Correct 2 ms 444 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 0 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 2 ms 600 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 2 ms 440 KB Output is correct
9 Correct 5 ms 344 KB Output is correct
10 Correct 6 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 6 ms 344 KB Output is correct
13 Correct 5 ms 344 KB Output is correct
14 Correct 3 ms 436 KB Output is correct
15 Correct 3 ms 344 KB Output is correct
16 Correct 5 ms 604 KB Output is correct
17 Correct 3 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 3 ms 344 KB Output is correct
21 Correct 2 ms 444 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 11 ms 464 KB Output is correct
24 Correct 4 ms 600 KB Output is correct
25 Correct 9 ms 472 KB Output is correct
26 Correct 27 ms 456 KB Output is correct
27 Correct 46 ms 600 KB Output is correct
28 Correct 4 ms 344 KB Output is correct
29 Correct 32 ms 436 KB Output is correct
30 Correct 37 ms 592 KB Output is correct
31 Correct 9 ms 344 KB Output is correct
32 Correct 17 ms 600 KB Output is correct
33 Correct 15 ms 436 KB Output is correct
34 Correct 14 ms 600 KB Output is correct
35 Correct 13 ms 468 KB Output is correct
36 Correct 20 ms 440 KB Output is correct
37 Correct 14 ms 600 KB Output is correct
38 Correct 16 ms 432 KB Output is correct
39 Correct 8 ms 344 KB Output is correct
40 Correct 6 ms 344 KB Output is correct
41 Correct 5 ms 696 KB Output is correct

Subtask #3
27.7 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 22 ms 456 KB Output is correct
8 Correct 8 ms 344 KB Output is correct
9 Correct 28 ms 452 KB Output is correct
10 Partially correct 49 ms 592 KB Output is partially correct
11 Partially correct 101 ms 600 KB Output is partially correct
12 Correct 9 ms 344 KB Output is correct
13 Partially correct 106 ms 344 KB Output is partially correct
14 Partially correct 56 ms 344 KB Output is partially correct
15 Partially correct 32 ms 848 KB Output is partially correct
16 Partially correct 44 ms 344 KB Output is partially correct
17 Partially correct 30 ms 600 KB Output is partially correct
18 Partially correct 32 ms 848 KB Output is partially correct
19 Partially correct 28 ms 344 KB Output is partially correct
20 Partially correct 46 ms 596 KB Output is partially correct
21 Partially correct 41 ms 436 KB Output is partially correct
22 Partially correct 39 ms 676 KB Output is partially correct
23 Partially correct 31 ms 472 KB Output is partially correct
24 Partially correct 24 ms 600 KB Output is partially correct
25 Correct 16 ms 600 KB Output is correct
26 Correct 7 ms 344 KB Output is correct
27 Correct 25 ms 432 KB Output is correct
28 Correct 25 ms 744 KB Output is correct
29 Partially correct 18 ms 436 KB Output is partially correct
30 Partially correct 21 ms 688 KB Output is partially correct
31 Partially correct 31 ms 592 KB Output is partially correct
32 Partially correct 56 ms 592 KB Output is partially correct
33 Partially correct 36 ms 596 KB Output is partially correct
34 Partially correct 59 ms 428 KB Output is partially correct
35 Partially correct 27 ms 592 KB Output is partially correct
36 Partially correct 21 ms 592 KB Output is partially correct
37 Partially correct 40 ms 592 KB Output is partially correct
38 Partially correct 28 ms 600 KB Output is partially correct
39 Correct 25 ms 452 KB Output is correct
40 Correct 23 ms 600 KB Output is correct
41 Partially correct 29 ms 928 KB Output is partially correct
42 Partially correct 19 ms 944 KB Output is partially correct
43 Partially correct 17 ms 436 KB Output is partially correct
44 Partially correct 84 ms 344 KB Output is partially correct
45 Correct 22 ms 592 KB Output is correct
46 Correct 17 ms 344 KB Output is correct
47 Correct 14 ms 344 KB Output is correct
48 Correct 9 ms 600 KB Output is correct