oj.uz

Submission #857913

# Submission time Handle Problem Language Result Execution time Memory
857913 2023-10-07T07:15:11 Z firewater Rarest Insects (IOI22_insects) C++17
94.91 / 100
 43 ms 1096 KB 
#include "insects.h"
#include<bits/stdc++.h>
#define MX 2023
using namespace std;
int n,m,l,r,num,sav,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;
	l=1;
	r=n/m;
	sav=-1;
	for(int i=0;i<n;++i){
		if(p[i])continue;
		move_inside(i);
		if(press_button()>r){
			pp[i]=0;
			move_outside(i);
		}
	}
	for(int i=0;i<n;++i)
		if(!p[i]&&!pp[i])
			move_outside(i);
	while(l<r){
		int mid=l+r+1>>1;
		d.clear();
		if(sav!=-1){
			d.push_back(sav);
			sav=-1;
		}
		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=1;i<d.size();++i){
				p[d[i]]=0;
				move_outside(d[i]);
				num--;
			}
			sav=d[0];
		}
	}
	return l;
}

Compilation message

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:44:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   44 |   int mid=l+r+1>>1;
      |           ~~~^~
insects.cpp:55:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |    for(int i=1;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 3 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 3 ms 344 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 3 ms 344 KB Output is correct
13 Correct 3 ms 344 KB Output is correct
14 Correct 4 ms 344 KB Output is correct
15 Correct 3 ms 344 KB Output is correct
16 Correct 4 ms 600 KB Output is correct
17 Correct 3 ms 344 KB Output is correct
18 Correct 3 ms 344 KB Output is correct
19 Correct 3 ms 344 KB Output is correct
20 Correct 2 ms 344 KB Output is correct
21 Correct 2 ms 344 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 3 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 3 ms 344 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 3 ms 344 KB Output is correct
13 Correct 3 ms 344 KB Output is correct
14 Correct 4 ms 344 KB Output is correct
15 Correct 3 ms 344 KB Output is correct
16 Correct 4 ms 600 KB Output is correct
17 Correct 3 ms 344 KB Output is correct
18 Correct 3 ms 344 KB Output is correct
19 Correct 3 ms 344 KB Output is correct
20 Correct 2 ms 344 KB Output is correct
21 Correct 2 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 17 ms 672 KB Output is correct
24 Correct 5 ms 600 KB Output is correct
25 Correct 17 ms 344 KB Output is correct
26 Correct 19 ms 688 KB Output is correct
27 Correct 18 ms 848 KB Output is correct
28 Correct 6 ms 856 KB Output is correct
29 Correct 17 ms 600 KB Output is correct
30 Correct 16 ms 600 KB Output is correct
31 Correct 18 ms 700 KB Output is correct
32 Correct 16 ms 852 KB Output is correct
33 Correct 17 ms 852 KB Output is correct
34 Correct 18 ms 848 KB Output is correct
35 Correct 15 ms 600 KB Output is correct
36 Correct 19 ms 436 KB Output is correct
37 Correct 15 ms 600 KB Output is correct
38 Correct 16 ms 444 KB Output is correct
39 Correct 12 ms 444 KB Output is correct
40 Correct 10 ms 604 KB Output is correct
41 Correct 6 ms 444 KB Output is correct

Subtask #3
69.91 / 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 Partially correct 0 ms 344 KB Output is partially correct
7 Partially correct 39 ms 596 KB Output is partially correct
8 Correct 9 ms 344 KB Output is correct
9 Partially correct 36 ms 660 KB Output is partially correct
10 Partially correct 36 ms 924 KB Output is partially correct
11 Partially correct 32 ms 424 KB Output is partially correct
12 Correct 18 ms 696 KB Output is correct
13 Partially correct 32 ms 924 KB Output is partially correct
14 Partially correct 33 ms 600 KB Output is partially correct
15 Partially correct 37 ms 672 KB Output is partially correct
16 Partially correct 39 ms 664 KB Output is partially correct
17 Partially correct 34 ms 664 KB Output is partially correct
18 Partially correct 37 ms 428 KB Output is partially correct
19 Partially correct 35 ms 664 KB Output is partially correct
20 Partially correct 37 ms 840 KB Output is partially correct
21 Partially correct 39 ms 920 KB Output is partially correct
22 Partially correct 38 ms 860 KB Output is partially correct
23 Partially correct 36 ms 1096 KB Output is partially correct
24 Correct 23 ms 924 KB Output is correct
25 Correct 22 ms 848 KB Output is correct
26 Correct 13 ms 600 KB Output is correct
27 Partially correct 34 ms 1088 KB Output is partially correct
28 Partially correct 43 ms 924 KB Output is partially correct
29 Partially correct 35 ms 920 KB Output is partially correct
30 Partially correct 35 ms 836 KB Output is partially correct
31 Partially correct 33 ms 660 KB Output is partially correct
32 Partially correct 34 ms 1096 KB Output is partially correct
33 Partially correct 32 ms 664 KB Output is partially correct
34 Partially correct 35 ms 592 KB Output is partially correct
35 Partially correct 35 ms 836 KB Output is partially correct
36 Partially correct 39 ms 1092 KB Output is partially correct
37 Partially correct 37 ms 664 KB Output is partially correct
38 Partially correct 40 ms 416 KB Output is partially correct
39 Partially correct 36 ms 684 KB Output is partially correct
40 Partially correct 34 ms 600 KB Output is partially correct
41 Partially correct 42 ms 932 KB Output is partially correct
42 Partially correct 41 ms 1088 KB Output is partially correct
43 Partially correct 9 ms 856 KB Output is partially correct
44 Partially correct 33 ms 600 KB Output is partially correct
45 Partially correct 39 ms 920 KB Output is partially correct
46 Correct 17 ms 600 KB Output is correct
47 Correct 16 ms 600 KB Output is correct
48 Correct 22 ms 676 KB Output is correct