oj.uz

Submission #1019135

# Submission time Handle Problem Language Result Execution time Memory
1019135 2024-07-10T14:02:53 Z j_vdd16 Counting Mushrooms (IOI20_mushrooms) C++17
92.2449 / 100
 6 ms 724 KB 
#include "mushrooms.h"

#include <algorithm>
#include <bitset>
#include <cstdint>
#include <cstring>
#include <iostream>
#include <limits.h>
#include <math.h>
#include <map>
#include <numeric>
#include <queue>
#include <set>
#include <stack>
#include <string>
#include <vector>

//#define int long long
#define loop(X, N) for(int X = 0; X < (N); X++)
#define all(V) V.begin(), V.end()
#define rall(V) V.rbegin(), V.rend()

using namespace std;

typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<int, int> ii;
typedef vector<ii> vii;
typedef vector<vector<ii>> vvii;
typedef vector<bool> vb;
typedef vector<vector<bool>> vvb;

//int use_machine(vi x);

int count_mushrooms(int n)
{
	if (n < 10) {
		int As = 1;
		for (int i = 1; i < n; i++) {
			if (!use_machine({ 0, i })) As++;
		}
		return As;
	}

	vi a = { 0 };
	vi b;

	int i = 1;
	if (use_machine({ 0, 1 }) == 1)
	{
		b.push_back(1); 
		if (use_machine({ 0, 2 }))
			b.push_back(2);
		else
			a.push_back(2);

		i += 2;
	}
	else
	{
		a.push_back(1);
		i++;
	}

	int result = a.size();
	while (i < n)
	{
		if (a.size() > b.size())
		{
			int sq = a.size();
			
			vi ask;
			int asked;
			if (i * i < n)
			{
				asked = 2;
				ask = { a[0], i, a[1], i + 1 };
				i += 2;
			}
			else
			{
				asked = min(sq, n - i);
				loop(j, asked)
				{
					ask.push_back(a[j]);
					ask.push_back(i++);
				}
			}

			int res = use_machine(ask);
			result += asked - res / 2 - res % 2;
			if (res % 2)
				b.push_back(i - 1);
			else
				a.push_back(i - 1);

			if (asked == 2)
			{
				if (res >= 2)
					b.push_back(i - 2);
				else
					a.push_back(i - 2);
			}
		}
		else
		{
			int sq = b.size();

			vi ask;
			int asked;

			if (i * i < n)
			{
				asked = 2;
				ask = { b[0], i, b[1], i + 1 };
				i += 2;
			}
			else
			{
				asked = min(sq, n - i);
				loop(j, asked)
				{
					ask.push_back(b[j]);
					ask.push_back(i++);
				}
			}

			int res = use_machine(ask);
			result += res / 2 + res % 2;
			if (res % 2)
				a.push_back(i - 1);
			else
				b.push_back(i - 1);

			if (asked == 2)
			{
				if (res >= 2)
					a.push_back(i - 2);
				else
					b.push_back(i - 2);
			}
		}
	}

	return result;
}

Subtask #1
92.2449 / 100.0

# 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 1 ms 344 KB Output is correct
7 Correct 3 ms 344 KB Output is correct
8 Correct 3 ms 344 KB Output is correct
9 Correct 3 ms 344 KB Output is correct
10 Correct 3 ms 344 KB Output is correct
11 Partially correct 4 ms 344 KB Output is partially correct
12 Correct 3 ms 452 KB Output is correct
13 Correct 3 ms 344 KB Output is correct
14 Correct 2 ms 464 KB Output is correct
15 Partially correct 6 ms 344 KB Output is partially correct
16 Partially correct 3 ms 344 KB Output is partially correct
17 Correct 3 ms 464 KB Output is correct
18 Correct 3 ms 344 KB Output is correct
19 Partially correct 3 ms 344 KB Output is partially correct
20 Correct 5 ms 344 KB Output is correct
21 Correct 3 ms 340 KB Output is correct
22 Partially correct 5 ms 724 KB Output is partially correct
23 Correct 3 ms 344 KB Output is correct
24 Correct 2 ms 344 KB Output is correct
25 Partially correct 5 ms 468 KB Output is partially correct
26 Partially correct 5 ms 344 KB Output is partially correct
27 Partially correct 3 ms 344 KB Output is partially correct
28 Partially correct 5 ms 464 KB Output is partially correct
29 Partially correct 3 ms 344 KB Output is partially correct
30 Partially correct 4 ms 344 KB Output is partially correct
31 Partially correct 3 ms 460 KB Output is partially correct
32 Partially correct 3 ms 344 KB Output is partially correct
33 Partially correct 3 ms 344 KB Output is partially correct
34 Partially correct 3 ms 344 KB Output is partially correct
35 Partially correct 5 ms 344 KB Output is partially correct
36 Partially correct 4 ms 344 KB Output is partially correct
37 Partially correct 3 ms 344 KB Output is partially correct
38 Partially correct 5 ms 344 KB Output is partially correct
39 Partially correct 4 ms 464 KB Output is partially correct
40 Partially correct 3 ms 344 KB Output is partially correct
41 Partially correct 6 ms 344 KB Output is partially correct
42 Partially correct 3 ms 344 KB Output is partially correct
43 Partially correct 6 ms 600 KB Output is partially correct
44 Partially correct 4 ms 344 KB Output is partially correct
45 Partially correct 3 ms 460 KB Output is partially correct
46 Partially correct 3 ms 344 KB Output is partially correct
47 Partially correct 4 ms 344 KB Output is partially correct
48 Partially correct 5 ms 472 KB Output is partially correct
49 Partially correct 4 ms 464 KB Output is partially correct
50 Partially correct 3 ms 344 KB Output is partially correct
51 Partially correct 3 ms 344 KB Output is partially correct
52 Partially correct 4 ms 344 KB Output is partially correct
53 Partially correct 3 ms 344 KB Output is partially correct
54 Partially correct 3 ms 344 KB Output is partially correct
55 Partially correct 6 ms 456 KB Output is partially correct
56 Partially correct 5 ms 344 KB Output is partially correct
57 Partially correct 3 ms 344 KB Output is partially correct
58 Partially correct 3 ms 468 KB Output is partially correct
59 Partially correct 6 ms 608 KB Output is partially correct
60 Partially correct 4 ms 344 KB Output is partially correct
61 Partially correct 3 ms 344 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 0 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 1 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 1 ms 344 KB Output is correct
89 Correct 0 ms 344 KB Output is correct
90 Correct 0 ms 596 KB Output is correct
91 Correct 0 ms 344 KB Output is correct