oj.uz

Submission #857888

# Submission time Handle Problem Language Result Execution time Memory
857888 2023-10-07T06:56:19 Z firewater Rarest Insects (IOI22_insects) C++17
99.78 / 100
 34 ms 1112 KB 
#include "insects.h"
#include<bits/stdc++.h>
#define MX 2023
using namespace std;
int n,m,l,r,num,p[MX],pp[MX];
vector<int>d;
int check(int x)
{
	for(int i=0;i<n;++i){
		if(p[i]||pp[i])continue;
		move_inside(i);
		if(press_button()>x)move_outside(i);
		else{
			p[i]=1;
			d.push_back(i);
			num++;
		}
	}
	return num;
}
int min_cardinality(int N) {
	n=N;
	for(int i=0;i<n;++i){
		move_inside(i);
		if(press_button()>1)move_outside(i);
		else p[i]=1,num++;
	}
	m=num;
	for(int i=0;i<n;++i)
		if(p[i]==1){
			move_outside(i);
			p[i]=0;
			num--;
		}
	l=1;
	r=n/m;
	num=0;
	while(l<r){
		int mid=l+r+1>>1;
		d.clear();
		if(check(mid)==mid*m)l=mid;
		else{
			r=mid-1;
			for(int i=0;i<n;++i)
				if(!p[i])pp[i]=1;
			for(int i=0;i<d.size();++i){
				p[d[i]]=0;
				move_outside(d[i]);
				num--;
			}
		}
	}
	return l;
}

Compilation message

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:39:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   39 |   int mid=l+r+1>>1;
      |           ~~~^~
insects.cpp:46:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |    for(int i=0;i<d.size();++i){
      |                ~^~~~~~~~~

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 4 ms 344 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 2 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 3 ms 600 KB Output is correct
13 Correct 2 ms 344 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 4 ms 344 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 3 ms 344 KB Output is correct
18 Correct 3 ms 596 KB Output is correct
19 Correct 2 ms 344 KB Output is correct
20 Correct 3 ms 444 KB Output is correct
21 Correct 2 ms 600 KB Output is correct
22 Correct 1 ms 504 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 4 ms 344 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 2 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 3 ms 600 KB Output is correct
13 Correct 2 ms 344 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 4 ms 344 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 3 ms 344 KB Output is correct
18 Correct 3 ms 596 KB Output is correct
19 Correct 2 ms 344 KB Output is correct
20 Correct 3 ms 444 KB Output is correct
21 Correct 2 ms 600 KB Output is correct
22 Correct 1 ms 504 KB Output is correct
23 Correct 15 ms 688 KB Output is correct
24 Correct 5 ms 600 KB Output is correct
25 Correct 12 ms 856 KB Output is correct
26 Correct 15 ms 600 KB Output is correct
27 Correct 11 ms 344 KB Output is correct
28 Correct 5 ms 444 KB Output is correct
29 Correct 12 ms 448 KB Output is correct
30 Correct 13 ms 692 KB Output is correct
31 Correct 15 ms 856 KB Output is correct
32 Correct 13 ms 1104 KB Output is correct
33 Correct 14 ms 688 KB Output is correct
34 Correct 15 ms 600 KB Output is correct
35 Correct 12 ms 696 KB Output is correct
36 Correct 16 ms 704 KB Output is correct
37 Correct 15 ms 676 KB Output is correct
38 Correct 13 ms 692 KB Output is correct
39 Correct 14 ms 852 KB Output is correct
40 Correct 11 ms 700 KB Output is correct
41 Correct 7 ms 604 KB Output is correct

Subtask #3
74.78 / 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 356 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 600 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 30 ms 436 KB Output is correct
8 Correct 10 ms 340 KB Output is correct
9 Correct 27 ms 420 KB Output is correct
10 Correct 29 ms 848 KB Output is correct
11 Correct 21 ms 600 KB Output is correct
12 Correct 18 ms 444 KB Output is correct
13 Correct 32 ms 852 KB Output is correct
14 Correct 33 ms 952 KB Output is correct
15 Correct 30 ms 416 KB Output is correct
16 Correct 27 ms 428 KB Output is correct
17 Correct 25 ms 592 KB Output is correct
18 Correct 29 ms 944 KB Output is correct
19 Partially correct 27 ms 592 KB Output is partially correct
20 Correct 33 ms 856 KB Output is correct
21 Correct 32 ms 852 KB Output is correct
22 Partially correct 34 ms 680 KB Output is partially correct
23 Correct 29 ms 700 KB Output is correct
24 Correct 23 ms 848 KB Output is correct
25 Correct 27 ms 692 KB Output is correct
26 Correct 10 ms 848 KB Output is correct
27 Correct 32 ms 848 KB Output is correct
28 Correct 34 ms 432 KB Output is correct
29 Partially correct 24 ms 848 KB Output is partially correct
30 Partially correct 26 ms 600 KB Output is partially correct
31 Correct 30 ms 672 KB Output is correct
32 Correct 32 ms 1112 KB Output is correct
33 Correct 25 ms 676 KB Output is correct
34 Correct 29 ms 856 KB Output is correct
35 Partially correct 29 ms 444 KB Output is partially correct
36 Partially correct 31 ms 704 KB Output is partially correct
37 Correct 28 ms 680 KB Output is correct
38 Correct 28 ms 688 KB Output is correct
39 Correct 26 ms 680 KB Output is correct
40 Correct 27 ms 596 KB Output is correct
41 Partially correct 31 ms 848 KB Output is partially correct
42 Partially correct 26 ms 600 KB Output is partially correct
43 Correct 5 ms 344 KB Output is correct
44 Correct 23 ms 1104 KB Output is correct
45 Correct 26 ms 344 KB Output is correct
46 Correct 20 ms 688 KB Output is correct
47 Correct 18 ms 932 KB Output is correct
48 Correct 16 ms 684 KB Output is correct