Submission #882307

# Submission time Handle Problem Language Result Execution time Memory
882307 2023-12-03T03:39:31 Z pirhosig Counting Mushrooms (IOI20_mushrooms) C++17
98.69 / 100
5 ms 724 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;



void query2(vector<int> val[2], bool type, int a, int b) {
	if (!type) {
		int qres = use_machine({val[0][0], a, val[0][1], b});
		val[(qres / 2) > 0].push_back(a);
		val[qres % 2].push_back(b);
	} else {
		int qres = use_machine({val[1][0], a, val[1][1], b});
		val[!(qres / 2)].push_back(a);
		val[!(qres % 2)].push_back(b);
	}
}



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> val[2];
	val[0].push_back(0);

	R(2) val[use_machine({0, i + 1})].push_back(i + 1);
	int up = 3;

	R(3) {
		query2(val, val[0].size() < val[1].size(), up, up + 1);
		up += 2;
	}

	int tot = 0;
	R(30) {
		int qv[5] = {up, up + 1, up + 2, up + 3, up + 4};
		up += 5;
		if (val[0].size() > val[1].size()) {
			int qres = use_machine({val[0][0], qv[0], val[0][1], qv[1], val[0][2], qv[2], val[0][3], qv[3], val[0][4], qv[4]});
			val[qres & 1].push_back(qv[4]);
			if (qres < 2 || qres > 7) {
				bool can = qres > 7;
				val[can].push_back(qv[0]);
				val[can].push_back(qv[1]);
				val[can].push_back(qv[2]);
				val[can].push_back(qv[3]);
			} else if (qres == 4 || qres == 5) {
				if (val[1].size() < 2) {
					query2(val, false, qv[0], qv[1]);
					query2(val, false, qv[2], qv[3]);
				} else {
					int cres = use_machine({val[1][0], qv[0], val[1][1], qv[1], val[0][0], qv[2], val[0][1], qv[3]});
					val[cres < 4].push_back(qv[0]);
					val[cres == 1 || cres == 4 || cres == 5].push_back(qv[1]);
					val[cres == 3 || cres == 5 || cres == 6].push_back(qv[2]);
					val[!(cres & 1)].push_back(qv[3]);
				}
			} else if (qres == 2 || qres == 3) {
				if (val[1].size() < 2) {
					query2(val, false, qv[0], qv[1]);
					query2(val, false, qv[2], qv[3]);
				} else {
					int cres = use_machine({val[1][0], qv[0], val[1][1], qv[1], qv[2], qv[3]});
					val[cres == 1].push_back(qv[0]);
					val[cres == 3].push_back(qv[1]);
					val[cres == 5].push_back(qv[2]);
					val[cres == 4].push_back(qv[3]);
				}
			} else if (qres == 6 || qres == 7) {
				int cres = use_machine({val[0][0], qv[0], val[0][1], qv[1], qv[2], qv[3]});
				val[cres != 1].push_back(qv[0]);
				val[cres != 3].push_back(qv[1]);
				val[cres != 5].push_back(qv[2]);
				val[cres != 4].push_back(qv[3]);
			}
		} else {
			int qres = use_machine({val[1][0], qv[0], val[1][1], qv[1], val[1][2], qv[2], val[1][3], qv[3], val[1][4], qv[4]});
			val[!(qres & 1)].push_back(qv[4]);
			if (qres < 2 || qres > 7) {
				bool can = qres < 2;
				val[can].push_back(qv[0]);
				val[can].push_back(qv[1]);
				val[can].push_back(qv[2]);
				val[can].push_back(qv[3]);
			} else if (qres == 4 || qres == 5) {
				if (val[0].size() < 2) {
					query2(val, false, qv[0], qv[1]);
					query2(val, false, qv[2], qv[3]);
				} else {
					int cres = use_machine({val[0][0], qv[0], val[0][1], qv[1], val[1][0], qv[2], val[1][1], qv[3]});
					val[!(cres < 4)].push_back(qv[0]);
					val[!(cres == 1 || cres == 4 || cres == 5)].push_back(qv[1]);
					val[!(cres == 3 || cres == 5 || cres == 6)].push_back(qv[2]);
					val[cres & 1].push_back(qv[3]);
				}
			} else if (qres == 2 || qres == 3) {
				if (val[1].size() < 2) {
					query2(val, false, qv[0], qv[1]);
					query2(val, false, qv[2], qv[3]);
				} else {
					int cres = use_machine({val[0][0], qv[0], val[0][1], qv[1], qv[2], qv[3]});
					val[cres != 1].push_back(qv[0]);
					val[cres != 3].push_back(qv[1]);
					val[cres != 5].push_back(qv[2]);
					val[cres != 4].push_back(qv[3]);
				}
			} else if (qres == 6 || qres == 7) {
				int cres = use_machine({val[1][0], qv[0], val[1][1], qv[1], qv[2], qv[3]});
				val[cres == 1].push_back(qv[0]);
				val[cres == 3].push_back(qv[1]);
				val[cres == 5].push_back(qv[2]);
				val[cres == 4].push_back(qv[3]);
			}
		}
	}

	while (up < n) {
		int rem = n - up;
		int s1 = val[0].size();
		int s2 = val[1].size();
		vector<int> query;
		if (s1 > s2) {
			int qs = min(rem, s1);
			R(qs) {
				query.push_back(val[0][i]);
				query.push_back(up++);
			}
			int qres = use_machine(query);
			val[qres % 2].push_back(up - 1);
			tot += qs - 1 - (qres / 2);
		}
		else {
			int qs = min(rem, s2);
			R(qs) {
				query.push_back(val[1][i]);
				query.push_back(up++);
			}
			int qres = use_machine(query);
			val[!(qres % 2)].push_back(up - 1);
			tot += qres / 2;
		}
	}

	return tot + val[0].size();
}

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 440 KB Output is correct
6 Correct 1 ms 448 KB Output is correct
7 Correct 4 ms 448 KB Output is correct
8 Correct 4 ms 444 KB Output is correct
9 Correct 4 ms 448 KB Output is correct
10 Correct 4 ms 464 KB Output is correct
11 Correct 4 ms 468 KB Output is correct
12 Correct 4 ms 464 KB Output is correct
13 Correct 4 ms 448 KB Output is correct
14 Correct 3 ms 464 KB Output is correct
15 Correct 4 ms 464 KB Output is correct
16 Partially correct 4 ms 468 KB Output is partially correct
17 Correct 2 ms 456 KB Output is correct
18 Correct 4 ms 448 KB Output is correct
19 Correct 4 ms 724 KB Output is correct
20 Correct 4 ms 452 KB Output is correct
21 Correct 4 ms 700 KB Output is correct
22 Correct 4 ms 716 KB Output is correct
23 Correct 4 ms 600 KB Output is correct
24 Correct 3 ms 716 KB Output is correct
25 Correct 4 ms 464 KB Output is correct
26 Correct 4 ms 468 KB Output is correct
27 Correct 4 ms 460 KB Output is correct
28 Correct 4 ms 468 KB Output is correct
29 Correct 4 ms 468 KB Output is correct
30 Correct 4 ms 464 KB Output is correct
31 Correct 4 ms 464 KB Output is correct
32 Correct 4 ms 720 KB Output is correct
33 Correct 4 ms 716 KB Output is correct
34 Correct 5 ms 468 KB Output is correct
35 Correct 4 ms 468 KB Output is correct
36 Correct 4 ms 464 KB Output is correct
37 Correct 4 ms 464 KB Output is correct
38 Correct 4 ms 464 KB Output is correct
39 Correct 4 ms 464 KB Output is correct
40 Correct 4 ms 464 KB Output is correct
41 Partially correct 4 ms 472 KB Output is partially correct
42 Partially correct 4 ms 468 KB Output is partially correct
43 Correct 4 ms 472 KB Output is correct
44 Partially correct 4 ms 468 KB Output is partially correct
45 Correct 4 ms 464 KB Output is correct
46 Partially correct 4 ms 464 KB Output is partially correct
47 Partially correct 5 ms 464 KB Output is partially correct
48 Partially correct 4 ms 468 KB Output is partially correct
49 Partially correct 4 ms 468 KB Output is partially correct
50 Partially correct 5 ms 468 KB Output is partially correct
51 Correct 4 ms 464 KB Output is correct
52 Partially correct 4 ms 468 KB Output is partially correct
53 Correct 4 ms 468 KB Output is correct
54 Partially correct 4 ms 464 KB Output is partially correct
55 Partially correct 4 ms 468 KB Output is partially correct
56 Partially correct 4 ms 464 KB Output is partially correct
57 Correct 4 ms 464 KB Output is correct
58 Partially correct 4 ms 464 KB Output is partially correct
59 Partially correct 4 ms 708 KB Output is partially correct
60 Partially correct 4 ms 464 KB Output is partially correct
61 Partially correct 4 ms 472 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 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