oj.uz

Submission #830723

# Submission time Handle Problem Language Result Execution time Memory
830723 2023-08-19T09:49:55 Z caganyanmaz Rarest Insects (IOI22_insects) C++17
71.65 / 100
 93 ms 456 KB 
#include <bits/stdc++.h>
#include "insects.h"
#define pb push_back
using namespace std;

//#include "../debug.h"
#define debug(x...) void(42)

constexpr static int BLOCK = 50;

int n;
set<int> basis;

bool check(int val)
{
	vector<int> ci;
	for (int i = 0; i < n; i++)
	{
		if (basis.find(i) != basis.end())
			continue;
		move_inside(i);
		ci.pb(i);
		if (press_button() > val)
		{
			ci.pop_back();
			move_outside(i);
		}
	}
	bool res = ci.size() == (val - 1) * basis.size();
	for (int i : ci)
		move_outside(i);
	return res;
}

int test_a()
{
	int l = 1, r = 1 + (n / basis.size());
	debug(l, r);
	while (r - l > 1)
	{
		int m = l+r>>1;
		debug(m);
		if(check(m))
			l = m;
		else
			r = m;
	}
	debug(l);
	return l;
}
vector<int> bs;
set<int> machine;

int get_min(int l, int r, vector<int>& v)
{
	if (r - l == 1)
	{
		debug(l, v);
		return v.size()+1;
	}
	int m = l+r>>1;
	for (int i = l; i < m; i++)
	{
		if (machine.find(bs[i]) != machine.end())
			continue;
		machine.insert(bs[i]);
		move_inside(bs[i]);
	}
	for (int i = m; i < r; i++)
	{
		if (machine.find(bs[i]) == machine.end())
			continue;
		machine.erase(bs[i]);
		move_outside(bs[i]);
	}
	vector<int> lv, rv;
	for (int i : v)
	{
		move_inside(i);
		if (press_button() > 1)
			lv.pb(i);
		else
			rv.pb(i);
		move_outside(i);
	}
	int lres = get_min(l, m, lv);
	int rres = get_min(m, r, rv);
	return min(lres, rres);
 
}
 
int test_b()
{
	for (int i : basis)
	{
		bs.pb(i);
		machine.insert(i);
	}
	vector<int> v;
	for (int i = 0; i < n; i++)
		if (basis.find(i) == basis.end())
			v.pb(i);
	return get_min(0, bs.size(), v);
}

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
			basis.insert(i);
	}	
	if (basis.size() > BLOCK)
		return test_a();
	else
		return test_b();
	
}

Compilation message

insects.cpp: In function 'int test_a()':
insects.cpp:41:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   41 |   int m = l+r>>1;
      |           ~^~
insects.cpp: In function 'int get_min(int, int, std::vector<int>&)':
insects.cpp:61:11: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   61 |  int m = l+r>>1;
      |          ~^~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 7 ms 300 KB Output is correct
9 Correct 6 ms 208 KB Output is correct
10 Correct 3 ms 300 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 5 ms 208 KB Output is correct
13 Correct 6 ms 208 KB Output is correct
14 Correct 7 ms 208 KB Output is correct
15 Correct 6 ms 304 KB Output is correct
16 Correct 6 ms 300 KB Output is correct
17 Correct 6 ms 208 KB Output is correct
18 Correct 7 ms 208 KB Output is correct
19 Correct 8 ms 208 KB Output is correct
20 Correct 9 ms 208 KB Output is correct
21 Correct 2 ms 208 KB Output is correct
22 Correct 2 ms 296 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 7 ms 300 KB Output is correct
9 Correct 6 ms 208 KB Output is correct
10 Correct 3 ms 300 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 5 ms 208 KB Output is correct
13 Correct 6 ms 208 KB Output is correct
14 Correct 7 ms 208 KB Output is correct
15 Correct 6 ms 304 KB Output is correct
16 Correct 6 ms 300 KB Output is correct
17 Correct 6 ms 208 KB Output is correct
18 Correct 7 ms 208 KB Output is correct
19 Correct 8 ms 208 KB Output is correct
20 Correct 9 ms 208 KB Output is correct
21 Correct 2 ms 208 KB Output is correct
22 Correct 2 ms 296 KB Output is correct
23 Correct 7 ms 208 KB Output is correct
24 Correct 9 ms 320 KB Output is correct
25 Correct 38 ms 208 KB Output is correct
26 Correct 36 ms 300 KB Output is correct
27 Correct 18 ms 292 KB Output is correct
28 Correct 8 ms 300 KB Output is correct
29 Correct 21 ms 292 KB Output is correct
30 Correct 37 ms 292 KB Output is correct
31 Correct 30 ms 300 KB Output is correct
32 Correct 26 ms 208 KB Output is correct
33 Correct 32 ms 304 KB Output is correct
34 Correct 31 ms 296 KB Output is correct
35 Correct 34 ms 320 KB Output is correct
36 Correct 36 ms 208 KB Output is correct
37 Correct 40 ms 280 KB Output is correct
38 Correct 29 ms 208 KB Output is correct
39 Correct 15 ms 208 KB Output is correct
40 Correct 9 ms 316 KB Output is correct
41 Correct 9 ms 300 KB Output is correct

Subtask #3
46.65 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 17 ms 276 KB Output is correct
8 Correct 14 ms 336 KB Output is correct
9 Partially correct 92 ms 292 KB Output is partially correct
10 Partially correct 49 ms 304 KB Output is partially correct
11 Correct 27 ms 292 KB Output is correct
12 Correct 16 ms 320 KB Output is correct
13 Partially correct 41 ms 288 KB Output is partially correct
14 Partially correct 74 ms 304 KB Output is partially correct
15 Partially correct 45 ms 208 KB Output is partially correct
16 Partially correct 28 ms 292 KB Output is partially correct
17 Partially correct 40 ms 288 KB Output is partially correct
18 Partially correct 82 ms 292 KB Output is partially correct
19 Partially correct 66 ms 296 KB Output is partially correct
20 Partially correct 73 ms 288 KB Output is partially correct
21 Partially correct 47 ms 304 KB Output is partially correct
22 Partially correct 49 ms 456 KB Output is partially correct
23 Partially correct 62 ms 288 KB Output is partially correct
24 Correct 37 ms 316 KB Output is correct
25 Correct 20 ms 324 KB Output is correct
26 Correct 17 ms 340 KB Output is correct
27 Partially correct 75 ms 296 KB Output is partially correct
28 Partially correct 93 ms 296 KB Output is partially correct
29 Partially correct 70 ms 292 KB Output is partially correct
30 Partially correct 79 ms 304 KB Output is partially correct
31 Partially correct 87 ms 300 KB Output is partially correct
32 Partially correct 85 ms 208 KB Output is partially correct
33 Partially correct 86 ms 208 KB Output is partially correct
34 Partially correct 70 ms 280 KB Output is partially correct
35 Partially correct 92 ms 300 KB Output is partially correct
36 Partially correct 85 ms 324 KB Output is partially correct
37 Partially correct 75 ms 300 KB Output is partially correct
38 Partially correct 82 ms 300 KB Output is partially correct
39 Partially correct 59 ms 304 KB Output is partially correct
40 Partially correct 71 ms 296 KB Output is partially correct
41 Partially correct 60 ms 296 KB Output is partially correct
42 Partially correct 81 ms 280 KB Output is partially correct
43 Partially correct 18 ms 308 KB Output is partially correct
44 Partially correct 49 ms 284 KB Output is partially correct
45 Correct 30 ms 276 KB Output is correct
46 Correct 17 ms 316 KB Output is correct
47 Correct 26 ms 336 KB Output is correct
48 Correct 24 ms 300 KB Output is correct