oj.uz

Submission #436631

# Submission time Handle Problem Language Result Execution time Memory
436631 2021-06-24T17:08:03 Z frodakcin Counting Mushrooms (IOI20_mushrooms) C++17
92.623 / 100
 11 ms 324 KB 
#include "mushrooms.h"
#include <cstdio>

int count_mushrooms(int n)
{
	std::vector<int> m, a, b;
	a.push_back(0);
	int i=1;

	if(n > 1000)
	{
		if(use_machine({0, i})==0)
			a.push_back(i); else b.push_back(i);
		++i;
		if(use_machine({0, i})==0)
			a.push_back(i); else b.push_back(i);
		++i;

		bool swapped=0;
		if(a.size() < b.size())
			std::swap(a,b), swapped=1;

		for(int j=0;j<80;++j)
		{
			int v = use_machine({a[0], i, a[1], i+1});
			if(v&1) b.push_back(i+1); else a.push_back(i+1);
			if(v&2) b.push_back(i); else a.push_back(i);
			i+=2;
		}

		if(swapped)
		std::swap(a, b);
	}

	int ans=0;
	for(;i<n;)
		if(a.size() < b.size())
		{
			int qv=0;
			for(size_t j=0;j<b.size() && i<n;++j, ++i)
				m.push_back(b[j]), m.push_back(i), ++qv;
			int v = use_machine(m);
			m.clear();

			if(v&1) a.push_back(i-1);
			else b.push_back(i-1);

			if(v/2 == 0)
				for(int j=i-qv;j<i-1;++j)
					b.push_back(j);
			else if(v/2 == qv-1)
				for(int j=i-qv;j<i-1;++j)
					a.push_back(j);
			else
				ans += v/2;
		}
		else
		{
			int qv=0;
			for(size_t j=0;j<a.size() && i<n;++j, ++i)
				m.push_back(a[j]), m.push_back(i), ++qv;
			int v = use_machine(m);
			m.clear();

			if(v&1) b.push_back(i-1);
			else a.push_back(i-1);

			if(v/2 == 0)
				for(int j=i-qv;j<i-1;++j)
					a.push_back(j);
			else if(v/2 == qv-1)
				for(int j=i-qv;j<i-1;++j)
					b.push_back(j);
			else
				ans += (qv-1)-v/2;
		}

	return a.size()+ans;
}

Subtask #1
92.623 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Output is correct
2 Correct 0 ms 200 KB Output is correct
3 Correct 1 ms 200 KB Output is correct
4 Correct 1 ms 200 KB Output is correct
5 Correct 1 ms 200 KB Output is correct
6 Correct 2 ms 200 KB Output is correct
7 Correct 5 ms 324 KB Output is correct
8 Correct 7 ms 200 KB Output is correct
9 Correct 7 ms 200 KB Output is correct
10 Correct 8 ms 200 KB Output is correct
11 Partially correct 7 ms 308 KB Output is partially correct
12 Correct 7 ms 284 KB Output is correct
13 Correct 6 ms 200 KB Output is correct
14 Correct 5 ms 200 KB Output is correct
15 Partially correct 8 ms 200 KB Output is partially correct
16 Partially correct 7 ms 200 KB Output is partially correct
17 Correct 4 ms 200 KB Output is correct
18 Correct 6 ms 200 KB Output is correct
19 Partially correct 8 ms 308 KB Output is partially correct
20 Correct 8 ms 200 KB Output is correct
21 Correct 8 ms 200 KB Output is correct
22 Partially correct 7 ms 304 KB Output is partially correct
23 Correct 7 ms 200 KB Output is correct
24 Correct 4 ms 200 KB Output is correct
25 Partially correct 8 ms 312 KB Output is partially correct
26 Partially correct 8 ms 296 KB Output is partially correct
27 Partially correct 7 ms 200 KB Output is partially correct
28 Partially correct 7 ms 288 KB Output is partially correct
29 Partially correct 7 ms 200 KB Output is partially correct
30 Partially correct 8 ms 296 KB Output is partially correct
31 Partially correct 7 ms 200 KB Output is partially correct
32 Partially correct 7 ms 200 KB Output is partially correct
33 Partially correct 8 ms 200 KB Output is partially correct
34 Partially correct 7 ms 200 KB Output is partially correct
35 Partially correct 7 ms 200 KB Output is partially correct
36 Partially correct 9 ms 200 KB Output is partially correct
37 Partially correct 7 ms 300 KB Output is partially correct
38 Partially correct 11 ms 200 KB Output is partially correct
39 Partially correct 8 ms 200 KB Output is partially correct
40 Partially correct 7 ms 300 KB Output is partially correct
41 Partially correct 7 ms 300 KB Output is partially correct
42 Partially correct 6 ms 292 KB Output is partially correct
43 Partially correct 8 ms 200 KB Output is partially correct
44 Partially correct 7 ms 200 KB Output is partially correct
45 Partially correct 9 ms 200 KB Output is partially correct
46 Partially correct 8 ms 200 KB Output is partially correct
47 Partially correct 6 ms 200 KB Output is partially correct
48 Partially correct 8 ms 292 KB Output is partially correct
49 Partially correct 8 ms 296 KB Output is partially correct
50 Partially correct 9 ms 200 KB Output is partially correct
51 Partially correct 9 ms 200 KB Output is partially correct
52 Partially correct 8 ms 292 KB Output is partially correct
53 Partially correct 8 ms 292 KB Output is partially correct
54 Partially correct 8 ms 304 KB Output is partially correct
55 Partially correct 8 ms 200 KB Output is partially correct
56 Partially correct 8 ms 304 KB Output is partially correct
57 Partially correct 6 ms 200 KB Output is partially correct
58 Partially correct 8 ms 300 KB Output is partially correct
59 Partially correct 9 ms 304 KB Output is partially correct
60 Partially correct 7 ms 200 KB Output is partially correct
61 Partially correct 7 ms 304 KB Output is partially correct
62 Correct 0 ms 200 KB Output is correct
63 Correct 0 ms 200 KB Output is correct
64 Correct 1 ms 200 KB Output is correct
65 Correct 0 ms 200 KB Output is correct
66 Correct 1 ms 200 KB Output is correct
67 Correct 0 ms 200 KB Output is correct
68 Correct 1 ms 200 KB Output is correct
69 Correct 0 ms 200 KB Output is correct
70 Correct 1 ms 200 KB Output is correct
71 Correct 1 ms 200 KB Output is correct
72 Correct 1 ms 200 KB Output is correct
73 Correct 1 ms 200 KB Output is correct
74 Correct 1 ms 200 KB Output is correct
75 Correct 1 ms 200 KB Output is correct
76 Correct 1 ms 200 KB Output is correct
77 Correct 1 ms 200 KB Output is correct
78 Correct 1 ms 200 KB Output is correct
79 Correct 0 ms 200 KB Output is correct
80 Correct 1 ms 200 KB Output is correct
81 Correct 1 ms 200 KB Output is correct
82 Correct 1 ms 200 KB Output is correct
83 Correct 0 ms 200 KB Output is correct
84 Correct 1 ms 200 KB Output is correct
85 Correct 1 ms 200 KB Output is correct
86 Correct 1 ms 200 KB Output is correct
87 Correct 0 ms 200 KB Output is correct
88 Correct 0 ms 200 KB Output is correct
89 Correct 0 ms 200 KB Output is correct
90 Correct 1 ms 200 KB Output is correct
91 Correct 1 ms 200 KB Output is correct