oj.uz

Submission #882291

# Submission time Handle Problem Language Result Execution time Memory
882291 2023-12-03T01:32:25 Z pirhosig Counting Mushrooms (IOI20_mushrooms) C++17
89.3281 / 100
 6 ms 876 KB 
#include <bits/stdc++.h>
#include "mushrooms.h"
#define  R(a) for (int i = 0; i < a; ++i)
#define RR(a) for (int j = 0; j < a; ++j)
using namespace std;



int count_mushrooms(int n)
{
	if (n < 200)
	{
		int tot = 1;
		for (int i = 1; i < n; ++i)
		{
			tot += 1 - use_machine({0, i});
		}
		return tot;
	}

	vector<int> ta;
	vector<int> tb;
	ta.push_back(0);

	R(2)
	{
		if (use_machine({0, i + 1})) tb.push_back(i + 1);
		else ta.push_back(i + 1);
	}

	int up = 3;

	R(40)
	{
		int n1 = up++;
		int n2 = up++;
		if (ta.size() > tb.size())
		{
			int qres = use_machine({ta[0], n1, ta[1], n2});
			if (qres / 2) tb.push_back(n1);
			else ta.push_back(n1);
			if (qres % 2) tb.push_back(n2);
			else ta.push_back(n2);
		}
		else
		{
			int qres = use_machine({tb[0], n1, tb[1], n2});
			if (qres / 2) ta.push_back(n1);
			else tb.push_back(n1);
			if (qres % 2) ta.push_back(n2);
			else tb.push_back(n2);
		}
	}

	int tot = 0;

	while (up < n)
	{
		int rem = n - up;
		int s1 = ta.size();
		int s2 = tb.size();
		if (s1 > s2)
		{
			vector<int> query;
			int qs = min(rem, s1);
			R(qs * 2)
			{
				if (i % 2) query.push_back(up++);
				else query.push_back(ta[i / 2]);
			}
			int qres = use_machine(query);
			if (qres % 2) tb.push_back(up - 1);
			else ta.push_back(up - 1);
			tot += qs - 1 - (qres / 2);
		}
		else
		{
			vector<int> query;
			int qs = min(rem, s2);
			R(qs * 2)
			{
				if (i % 2) query.push_back(up++);
				else query.push_back(tb[i / 2]);
			}
			int qres = use_machine(query);
			if (qres % 2) ta.push_back(up - 1);
			else tb.push_back(up - 1);
			tot += qres / 2;
		}
	}

	return tot + ta.size();
}

Subtask #1
89.3281 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 600 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 444 KB Output is correct
6 Correct 1 ms 448 KB Output is correct
7 Correct 5 ms 464 KB Output is correct
8 Correct 4 ms 600 KB Output is correct
9 Correct 4 ms 468 KB Output is correct
10 Partially correct 4 ms 476 KB Output is partially correct
11 Partially correct 4 ms 476 KB Output is partially correct
12 Correct 4 ms 632 KB Output is correct
13 Correct 4 ms 464 KB Output is correct
14 Correct 2 ms 464 KB Output is correct
15 Partially correct 5 ms 728 KB Output is partially correct
16 Partially correct 5 ms 704 KB Output is partially correct
17 Correct 2 ms 724 KB Output is correct
18 Correct 4 ms 464 KB Output is correct
19 Partially correct 5 ms 476 KB Output is partially correct
20 Correct 4 ms 472 KB Output is correct
21 Correct 4 ms 876 KB Output is correct
22 Partially correct 5 ms 728 KB Output is partially correct
23 Correct 5 ms 472 KB Output is correct
24 Correct 2 ms 628 KB Output is correct
25 Partially correct 4 ms 476 KB Output is partially correct
26 Partially correct 4 ms 732 KB Output is partially correct
27 Partially correct 4 ms 472 KB Output is partially correct
28 Partially correct 5 ms 480 KB Output is partially correct
29 Partially correct 4 ms 732 KB Output is partially correct
30 Partially correct 4 ms 472 KB Output is partially correct
31 Partially correct 4 ms 480 KB Output is partially correct
32 Partially correct 5 ms 732 KB Output is partially correct
33 Partially correct 5 ms 476 KB Output is partially correct
34 Partially correct 5 ms 476 KB Output is partially correct
35 Partially correct 4 ms 476 KB Output is partially correct
36 Partially correct 4 ms 472 KB Output is partially correct
37 Partially correct 4 ms 476 KB Output is partially correct
38 Partially correct 4 ms 472 KB Output is partially correct
39 Partially correct 6 ms 472 KB Output is partially correct
40 Partially correct 4 ms 476 KB Output is partially correct
41 Partially correct 4 ms 704 KB Output is partially correct
42 Partially correct 5 ms 468 KB Output is partially correct
43 Partially correct 4 ms 476 KB Output is partially correct
44 Partially correct 4 ms 476 KB Output is partially correct
45 Partially correct 4 ms 472 KB Output is partially correct
46 Partially correct 4 ms 472 KB Output is partially correct
47 Partially correct 4 ms 476 KB Output is partially correct
48 Partially correct 4 ms 476 KB Output is partially correct
49 Partially correct 5 ms 476 KB Output is partially correct
50 Partially correct 4 ms 476 KB Output is partially correct
51 Partially correct 4 ms 472 KB Output is partially correct
52 Partially correct 4 ms 480 KB Output is partially correct
53 Partially correct 4 ms 480 KB Output is partially correct
54 Partially correct 4 ms 476 KB Output is partially correct
55 Partially correct 4 ms 480 KB Output is partially correct
56 Partially correct 4 ms 632 KB Output is partially correct
57 Partially correct 4 ms 476 KB Output is partially correct
58 Partially correct 4 ms 476 KB Output is partially correct
59 Partially correct 5 ms 472 KB Output is partially correct
60 Partially correct 4 ms 708 KB Output is partially correct
61 Partially correct 4 ms 476 KB Output is partially correct
62 Correct 0 ms 344 KB Output is correct
63 Correct 0 ms 344 KB Output is correct
64 Correct 0 ms 344 KB Output is correct
65 Correct 0 ms 344 KB Output is correct
66 Correct 0 ms 344 KB Output is correct
67 Correct 0 ms 344 KB Output is correct
68 Correct 0 ms 344 KB Output is correct
69 Correct 0 ms 344 KB Output is correct
70 Correct 0 ms 344 KB Output is correct
71 Correct 0 ms 344 KB Output is correct
72 Correct 0 ms 344 KB Output is correct
73 Correct 0 ms 344 KB Output is correct
74 Correct 0 ms 344 KB Output is correct
75 Correct 0 ms 344 KB Output is correct
76 Correct 0 ms 344 KB Output is correct
77 Correct 0 ms 344 KB Output is correct
78 Correct 0 ms 344 KB Output is correct
79 Correct 1 ms 344 KB Output is correct
80 Correct 0 ms 344 KB Output is correct
81 Correct 0 ms 344 KB Output is correct
82 Correct 0 ms 344 KB Output is correct
83 Correct 0 ms 344 KB Output is correct
84 Correct 0 ms 344 KB Output is correct
85 Correct 0 ms 344 KB Output is correct
86 Correct 0 ms 344 KB Output is correct
87 Correct 0 ms 344 KB Output is correct
88 Correct 0 ms 344 KB Output is correct
89 Correct 0 ms 344 KB Output is correct
90 Correct 0 ms 344 KB Output is correct
91 Correct 0 ms 344 KB Output is correct