oj.uz

Submission #857946

# Submission time Handle Problem Language Result Execution time Memory
857946 2023-10-07T07:44:01 Z firewater Rarest Insects (IOI22_insects) C++17
99.95 / 100
 31 ms 952 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++;
		}
		if(num==x*m)return 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;
	while(l<r){
		int mid=l+r+(r==l+1)>>1;
		mid=min(mid,r);
		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:34:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   34 |   int mid=l+r+(r==l+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=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 1 ms 344 KB Output is correct
6 Correct 2 ms 344 KB Output is correct
7 Correct 1 ms 600 KB Output is correct
8 Correct 2 ms 344 KB Output is correct
9 Correct 2 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 2 ms 344 KB Output is correct
13 Correct 2 ms 344 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 2 ms 344 KB Output is correct
16 Correct 2 ms 344 KB Output is correct
17 Correct 2 ms 344 KB Output is correct
18 Correct 3 ms 344 KB Output is correct
19 Correct 2 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 600 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 1 ms 344 KB Output is correct
6 Correct 2 ms 344 KB Output is correct
7 Correct 1 ms 600 KB Output is correct
8 Correct 2 ms 344 KB Output is correct
9 Correct 2 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 2 ms 344 KB Output is correct
13 Correct 2 ms 344 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 2 ms 344 KB Output is correct
16 Correct 2 ms 344 KB Output is correct
17 Correct 2 ms 344 KB Output is correct
18 Correct 3 ms 344 KB Output is correct
19 Correct 2 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 600 KB Output is correct
23 Correct 8 ms 344 KB Output is correct
24 Correct 4 ms 600 KB Output is correct
25 Correct 11 ms 444 KB Output is correct
26 Correct 12 ms 600 KB Output is correct
27 Correct 11 ms 848 KB Output is correct
28 Correct 4 ms 600 KB Output is correct
29 Correct 11 ms 952 KB Output is correct
30 Correct 11 ms 448 KB Output is correct
31 Correct 9 ms 600 KB Output is correct
32 Correct 11 ms 344 KB Output is correct
33 Correct 10 ms 600 KB Output is correct
34 Correct 11 ms 448 KB Output is correct
35 Correct 11 ms 600 KB Output is correct
36 Correct 11 ms 696 KB Output is correct
37 Correct 13 ms 700 KB Output is correct
38 Correct 16 ms 600 KB Output is correct
39 Correct 8 ms 604 KB Output is correct
40 Correct 7 ms 600 KB Output is correct
41 Correct 5 ms 600 KB Output is correct

Subtask #3
74.95 / 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 0 ms 344 KB Output is correct
7 Correct 20 ms 440 KB Output is correct
8 Correct 8 ms 600 KB Output is correct
9 Correct 25 ms 420 KB Output is correct
10 Correct 26 ms 700 KB Output is correct
11 Correct 22 ms 420 KB Output is correct
12 Correct 13 ms 856 KB Output is correct
13 Correct 22 ms 704 KB Output is correct
14 Correct 25 ms 600 KB Output is correct
15 Correct 21 ms 592 KB Output is correct
16 Correct 19 ms 684 KB Output is correct
17 Correct 21 ms 592 KB Output is correct
18 Correct 25 ms 848 KB Output is correct
19 Correct 21 ms 604 KB Output is correct
20 Correct 23 ms 856 KB Output is correct
21 Correct 25 ms 444 KB Output is correct
22 Correct 25 ms 856 KB Output is correct
23 Correct 18 ms 856 KB Output is correct
24 Correct 15 ms 684 KB Output is correct
25 Correct 14 ms 928 KB Output is correct
26 Correct 10 ms 600 KB Output is correct
27 Correct 23 ms 848 KB Output is correct
28 Correct 18 ms 848 KB Output is correct
29 Correct 31 ms 592 KB Output is correct
30 Correct 24 ms 592 KB Output is correct
31 Correct 23 ms 600 KB Output is correct
32 Correct 28 ms 604 KB Output is correct
33 Correct 23 ms 592 KB Output is correct
34 Correct 22 ms 592 KB Output is correct
35 Partially correct 29 ms 676 KB Output is partially correct
36 Correct 24 ms 444 KB Output is correct
37 Correct 23 ms 592 KB Output is correct
38 Correct 31 ms 696 KB Output is correct
39 Correct 23 ms 444 KB Output is correct
40 Correct 16 ms 440 KB Output is correct
41 Correct 25 ms 604 KB Output is correct
42 Partially correct 28 ms 676 KB Output is partially correct
43 Correct 6 ms 344 KB Output is correct
44 Correct 24 ms 692 KB Output is correct
45 Correct 19 ms 848 KB Output is correct
46 Correct 13 ms 600 KB Output is correct
47 Correct 18 ms 448 KB Output is correct
48 Correct 14 ms 600 KB Output is correct