Submission #580026

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
580026	2022-06-20T13:38:04 Z	Vanilla	Counting Mushrooms (IOI20_mushrooms)	C++17	80.1418 / 100	11 ms	432 KB

mushrooms

#include <bits/stdc++.h>
#include "mushrooms.h"
using namespace std;
int block = 141;

int cd2 (int x) {
	return x / 2 + (x % 2);
}

int count_mushrooms(int n) {
	if (n <= 20) {
		int rs = 0;
		for (int i = 1; i < n; i++){
			rs+=use_machine({0, i});
		}
		return n - rs;
	}
	block = min(n / 2, block);
	if (block * 2 == n) block--;
	vector <int> s0 = {0}, s1;
	int p1 = use_machine({0, 1});
	int p2 = use_machine({0, 2});
	(p1 ? s1: s0).push_back(1);
	(p2 ? s1: s0).push_back(2);
	if (p1 == p2 && p1 == 1) {
		for (int i = 3; i + 1 <= block * 2; i+=2){
			int k = use_machine({i, 1, i + 1, 2});
			(k & 1 ? s0: s1).push_back(i);
			(k & 2 ? s0: s1).push_back(i + 1);
		}
	}
	else {
		int p = (p1 == 0 ? 1: 2);
		for (int i = 3; i + 1 <= block * 2; i+=2){
			int k = use_machine({i, 0, i + 1, p});
			(k & 1 ? s1: s0).push_back(i);
			(k & 2 ? s1: s0).push_back(i + 1);
		}
	}
	bool rev = 0;
	int rs = s0.size();
	int oth = 0;
	if (s1.size() > s0.size()) {
		rev = 1;
		swap(s0, s1);
	}
	vector <int> idx;
	for (int i = block * 2 + 1; i < n; i++){
		idx.push_back(s0[i % block]);
		idx.push_back(i);
		if (i % block == 0 || i == n - 1) {
			oth+=cd2(use_machine(idx));
			idx.clear();
		}
	}
	if (!rev) oth = n - block * 2 - 1 - oth;
	return rs + oth;
}

Subtask #1

80.1418 / 100.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	208 KB	Output is correct
2	Correct	0 ms	208 KB	Output is correct
3	Correct	1 ms	208 KB	Output is correct
4	Correct	1 ms	208 KB	Output is correct
5	Correct	1 ms	208 KB	Output is correct
6	Correct	3 ms	208 KB	Output is correct
7	Partially correct	9 ms	208 KB	Output is partially correct
8	Partially correct	7 ms	308 KB	Output is partially correct
9	Partially correct	5 ms	316 KB	Output is partially correct
10	Partially correct	7 ms	308 KB	Output is partially correct
11	Partially correct	7 ms	208 KB	Output is partially correct
12	Partially correct	7 ms	208 KB	Output is partially correct
13	Partially correct	7 ms	304 KB	Output is partially correct
14	Correct	4 ms	208 KB	Output is correct
15	Partially correct	7 ms	304 KB	Output is partially correct
16	Partially correct	8 ms	308 KB	Output is partially correct
17	Correct	5 ms	208 KB	Output is correct
18	Partially correct	8 ms	208 KB	Output is partially correct
19	Partially correct	7 ms	312 KB	Output is partially correct
20	Partially correct	7 ms	208 KB	Output is partially correct
21	Partially correct	6 ms	208 KB	Output is partially correct
22	Partially correct	7 ms	208 KB	Output is partially correct
23	Partially correct	8 ms	208 KB	Output is partially correct
24	Correct	5 ms	316 KB	Output is correct
25	Partially correct	8 ms	308 KB	Output is partially correct
26	Partially correct	9 ms	208 KB	Output is partially correct
27	Partially correct	7 ms	208 KB	Output is partially correct
28	Partially correct	7 ms	208 KB	Output is partially correct
29	Partially correct	7 ms	308 KB	Output is partially correct
30	Partially correct	7 ms	208 KB	Output is partially correct
31	Partially correct	8 ms	312 KB	Output is partially correct
32	Partially correct	7 ms	208 KB	Output is partially correct
33	Partially correct	9 ms	208 KB	Output is partially correct
34	Partially correct	6 ms	208 KB	Output is partially correct
35	Partially correct	9 ms	208 KB	Output is partially correct
36	Partially correct	6 ms	208 KB	Output is partially correct
37	Partially correct	7 ms	304 KB	Output is partially correct
38	Partially correct	9 ms	208 KB	Output is partially correct
39	Partially correct	8 ms	208 KB	Output is partially correct
40	Partially correct	11 ms	308 KB	Output is partially correct
41	Partially correct	8 ms	208 KB	Output is partially correct
42	Partially correct	7 ms	208 KB	Output is partially correct
43	Partially correct	7 ms	208 KB	Output is partially correct
44	Partially correct	6 ms	308 KB	Output is partially correct
45	Partially correct	8 ms	208 KB	Output is partially correct
46	Partially correct	9 ms	308 KB	Output is partially correct
47	Partially correct	8 ms	208 KB	Output is partially correct
48	Partially correct	9 ms	208 KB	Output is partially correct
49	Partially correct	9 ms	312 KB	Output is partially correct
50	Partially correct	8 ms	208 KB	Output is partially correct
51	Partially correct	7 ms	308 KB	Output is partially correct
52	Partially correct	7 ms	208 KB	Output is partially correct
53	Partially correct	7 ms	208 KB	Output is partially correct
54	Partially correct	8 ms	208 KB	Output is partially correct
55	Partially correct	9 ms	208 KB	Output is partially correct
56	Partially correct	9 ms	208 KB	Output is partially correct
57	Partially correct	8 ms	432 KB	Output is partially correct
58	Partially correct	8 ms	208 KB	Output is partially correct
59	Partially correct	9 ms	208 KB	Output is partially correct
60	Partially correct	7 ms	208 KB	Output is partially correct
61	Partially correct	7 ms	208 KB	Output is partially correct
62	Correct	1 ms	208 KB	Output is correct
63	Correct	0 ms	208 KB	Output is correct
64	Correct	0 ms	208 KB	Output is correct
65	Correct	1 ms	208 KB	Output is correct
66	Correct	0 ms	208 KB	Output is correct
67	Correct	0 ms	208 KB	Output is correct
68	Correct	0 ms	208 KB	Output is correct
69	Correct	1 ms	208 KB	Output is correct
70	Correct	0 ms	208 KB	Output is correct
71	Correct	1 ms	208 KB	Output is correct
72	Correct	0 ms	208 KB	Output is correct
73	Correct	0 ms	208 KB	Output is correct
74	Correct	1 ms	208 KB	Output is correct
75	Correct	1 ms	208 KB	Output is correct
76	Correct	1 ms	208 KB	Output is correct
77	Correct	1 ms	208 KB	Output is correct
78	Correct	1 ms	208 KB	Output is correct
79	Correct	0 ms	208 KB	Output is correct
80	Correct	1 ms	208 KB	Output is correct
81	Correct	1 ms	208 KB	Output is correct
82	Correct	1 ms	284 KB	Output is correct
83	Correct	1 ms	208 KB	Output is correct
84	Correct	1 ms	208 KB	Output is correct
85	Correct	1 ms	208 KB	Output is correct
86	Correct	1 ms	208 KB	Output is correct
87	Correct	0 ms	208 KB	Output is correct
88	Correct	0 ms	208 KB	Output is correct
89	Correct	1 ms	208 KB	Output is correct
90	Correct	1 ms	208 KB	Output is correct
91	Correct	1 ms	208 KB	Output is correct