oj.uz

Submission #830725

# Submission time Handle Problem Language Result Execution time Memory
830725 2023-08-19T09:50:38 Z caganyanmaz Rarest Insects (IOI22_insects) C++17
71.87 / 100
 124 ms 356 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 = 75;

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 1 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 2 ms 208 KB Output is correct
8 Correct 7 ms 208 KB Output is correct
9 Correct 9 ms 300 KB Output is correct
10 Correct 5 ms 208 KB Output is correct
11 Correct 2 ms 296 KB Output is correct
12 Correct 4 ms 208 KB Output is correct
13 Correct 4 ms 296 KB Output is correct
14 Correct 4 ms 208 KB Output is correct
15 Correct 6 ms 208 KB Output is correct
16 Correct 6 ms 208 KB Output is correct
17 Correct 6 ms 300 KB Output is correct
18 Correct 9 ms 208 KB Output is correct
19 Correct 9 ms 208 KB Output is correct
20 Correct 4 ms 300 KB Output is correct
21 Correct 2 ms 208 KB Output is correct
22 Correct 2 ms 208 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 1 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 2 ms 208 KB Output is correct
8 Correct 7 ms 208 KB Output is correct
9 Correct 9 ms 300 KB Output is correct
10 Correct 5 ms 208 KB Output is correct
11 Correct 2 ms 296 KB Output is correct
12 Correct 4 ms 208 KB Output is correct
13 Correct 4 ms 296 KB Output is correct
14 Correct 4 ms 208 KB Output is correct
15 Correct 6 ms 208 KB Output is correct
16 Correct 6 ms 208 KB Output is correct
17 Correct 6 ms 300 KB Output is correct
18 Correct 9 ms 208 KB Output is correct
19 Correct 9 ms 208 KB Output is correct
20 Correct 4 ms 300 KB Output is correct
21 Correct 2 ms 208 KB Output is correct
22 Correct 2 ms 208 KB Output is correct
23 Correct 5 ms 356 KB Output is correct
24 Correct 8 ms 320 KB Output is correct
25 Correct 23 ms 296 KB Output is correct
26 Correct 49 ms 292 KB Output is correct
27 Correct 13 ms 300 KB Output is correct
28 Correct 9 ms 316 KB Output is correct
29 Correct 20 ms 296 KB Output is correct
30 Correct 50 ms 304 KB Output is correct
31 Correct 20 ms 208 KB Output is correct
32 Correct 35 ms 300 KB Output is correct
33 Correct 23 ms 208 KB Output is correct
34 Correct 30 ms 280 KB Output is correct
35 Correct 36 ms 300 KB Output is correct
36 Correct 42 ms 292 KB Output is correct
37 Correct 43 ms 304 KB Output is correct
38 Correct 32 ms 208 KB Output is correct
39 Correct 21 ms 208 KB Output is correct
40 Correct 14 ms 208 KB Output is correct
41 Correct 7 ms 324 KB Output is correct

Subtask #3
46.87 / 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 15 ms 292 KB Output is correct
8 Correct 14 ms 344 KB Output is correct
9 Partially correct 96 ms 296 KB Output is partially correct
10 Partially correct 81 ms 312 KB Output is partially correct
11 Correct 34 ms 280 KB Output is correct
12 Correct 20 ms 320 KB Output is correct
13 Partially correct 42 ms 304 KB Output is partially correct
14 Partially correct 91 ms 292 KB Output is partially correct
15 Partially correct 57 ms 292 KB Output is partially correct
16 Partially correct 53 ms 296 KB Output is partially correct
17 Partially correct 46 ms 304 KB Output is partially correct
18 Partially correct 62 ms 296 KB Output is partially correct
19 Partially correct 85 ms 320 KB Output is partially correct
20 Partially correct 69 ms 292 KB Output is partially correct
21 Partially correct 101 ms 304 KB Output is partially correct
22 Partially correct 80 ms 208 KB Output is partially correct
23 Partially correct 52 ms 208 KB Output is partially correct
24 Correct 30 ms 208 KB Output is correct
25 Correct 22 ms 328 KB Output is correct
26 Correct 17 ms 324 KB Output is correct
27 Partially correct 47 ms 300 KB Output is partially correct
28 Partially correct 92 ms 296 KB Output is partially correct
29 Partially correct 90 ms 280 KB Output is partially correct
30 Partially correct 75 ms 288 KB Output is partially correct
31 Partially correct 117 ms 308 KB Output is partially correct
32 Partially correct 74 ms 292 KB Output is partially correct
33 Partially correct 67 ms 292 KB Output is partially correct
34 Partially correct 62 ms 208 KB Output is partially correct
35 Partially correct 85 ms 308 KB Output is partially correct
36 Partially correct 116 ms 292 KB Output is partially correct
37 Partially correct 124 ms 300 KB Output is partially correct
38 Partially correct 107 ms 208 KB Output is partially correct
39 Partially correct 79 ms 280 KB Output is partially correct
40 Partially correct 47 ms 300 KB Output is partially correct
41 Partially correct 115 ms 300 KB Output is partially correct
42 Partially correct 75 ms 288 KB Output is partially correct
43 Partially correct 11 ms 328 KB Output is partially correct
44 Partially correct 53 ms 292 KB Output is partially correct
45 Correct 27 ms 288 KB Output is correct
46 Correct 20 ms 304 KB Output is correct
47 Correct 18 ms 208 KB Output is correct
48 Correct 19 ms 316 KB Output is correct