Submission #1080680

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1080680	2024-08-29T12:34:51 Z	UmairAhmadMirza	Counting Mushrooms (IOI20_mushrooms)	C++17	80.427 / 100	7 ms	596 KB

mushrooms

#include <bits/stdc++.h>
using namespace std;
 
int const N=20005;
int const H=141;
 
int use_machine(vector<int> x);

int solve(int n){
	vector<int> A,B;
	A.push_back(0);
	vector<int> q;
	q.push_back(0);
	for(int i=1;i<n;i++){
		q.push_back(i);
		if(use_machine(q))
			B.push_back(i);
		else
			A.push_back(i);
		q.pop_back();
	}
	return int(A.size());
}
 
int count_mushrooms(int n){
	if(n<=282)
		return solve(n);
	vector<int> A,B;
	A.push_back(0);
	vector<int> q;
	q.push_back(0);
	for(int i=1;i<n;i++){
		q.push_back(i);
		if(use_machine(q))
			B.push_back(i);
		else
			A.push_back(i);
		q.pop_back();
		if(A.size()>=2 || B.size()>=2)
			break;
	}
	bool bl=0;
	if(A.size()<B.size()){
		swap(A,B);
		bl=1;
	}
	for (int i = (A.size()+B.size()); i < n; i+=2)
	{
		q.clear();
		q.push_back(A[0]);
		q.push_back(i);
		q.push_back(A[1]);
		q.push_back(i+1);
		int v=use_machine(q);
		if(v%2==0)
			A.push_back(i+1);
		else
			B.push_back(i+1);

		if(v>=2)
			B.push_back(i);
		else
			A.push_back(i);
		if(A.size()>=H || B.size()>=H)
			break;
	}
	if(bl){
		bl=0;
		swap(A,B);
	}
	if(A.size()<B.size()){
		bl=1;
		swap(A,B);
	}
	int cntA=A.size(),cntB=B.size();
	for(int i=(A.size()+B.size());i<n;i+=H){
		vector<int> q;
		for(int j=i;j<min(i+H,n);j++){
			q.push_back(A[j-i]);
			q.push_back(j);
		}
		int v=use_machine(q)+1;
		cntB+=v/2;
	}
	cntA=n-cntB;
	if(bl)
		swap(cntB,cntA);
	return cntA;
}

Subtask #1

80.427 / 100.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	596 KB	Output is correct
2	Correct	0 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	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	5 ms	444 KB	Output is correct
9	Correct	4 ms	344 KB	Output is correct
10	Partially correct	6 ms	344 KB	Output is partially correct
11	Partially correct	4 ms	344 KB	Output is partially correct
12	Partially correct	3 ms	344 KB	Output is partially correct
13	Correct	3 ms	344 KB	Output is correct
14	Correct	2 ms	344 KB	Output is correct
15	Partially correct	3 ms	344 KB	Output is partially correct
16	Partially correct	3 ms	344 KB	Output is partially correct
17	Correct	2 ms	344 KB	Output is correct
18	Correct	3 ms	340 KB	Output is correct
19	Partially correct	4 ms	344 KB	Output is partially correct
20	Partially correct	5 ms	344 KB	Output is partially correct
21	Partially correct	3 ms	344 KB	Output is partially correct
22	Partially correct	7 ms	344 KB	Output is partially correct
23	Partially correct	4 ms	344 KB	Output is partially correct
24	Correct	2 ms	344 KB	Output is correct
25	Partially correct	6 ms	344 KB	Output is partially correct
26	Partially correct	6 ms	344 KB	Output is partially correct
27	Partially correct	3 ms	344 KB	Output is partially correct
28	Partially correct	3 ms	344 KB	Output is partially correct
29	Partially correct	4 ms	344 KB	Output is partially correct
30	Partially correct	4 ms	344 KB	Output is partially correct
31	Partially correct	3 ms	344 KB	Output is partially correct
32	Partially correct	3 ms	344 KB	Output is partially correct
33	Partially correct	4 ms	344 KB	Output is partially correct
34	Partially correct	3 ms	344 KB	Output is partially correct
35	Partially correct	3 ms	344 KB	Output is partially correct
36	Partially correct	6 ms	344 KB	Output is partially correct
37	Partially correct	3 ms	344 KB	Output is partially correct
38	Partially correct	4 ms	344 KB	Output is partially correct
39	Partially correct	3 ms	344 KB	Output is partially correct
40	Partially correct	5 ms	344 KB	Output is partially correct
41	Partially correct	4 ms	344 KB	Output is partially correct
42	Partially correct	4 ms	344 KB	Output is partially correct
43	Partially correct	4 ms	444 KB	Output is partially correct
44	Partially correct	4 ms	344 KB	Output is partially correct
45	Partially correct	3 ms	344 KB	Output is partially correct
46	Partially correct	4 ms	344 KB	Output is partially correct
47	Partially correct	3 ms	440 KB	Output is partially correct
48	Partially correct	3 ms	344 KB	Output is partially correct
49	Partially correct	4 ms	344 KB	Output is partially correct
50	Partially correct	3 ms	344 KB	Output is partially correct
51	Partially correct	4 ms	344 KB	Output is partially correct
52	Partially correct	6 ms	344 KB	Output is partially correct
53	Partially correct	3 ms	344 KB	Output is partially correct
54	Partially correct	4 ms	344 KB	Output is partially correct
55	Partially correct	3 ms	344 KB	Output is partially correct
56	Partially correct	3 ms	344 KB	Output is partially correct
57	Partially correct	3 ms	444 KB	Output is partially correct
58	Partially correct	4 ms	344 KB	Output is partially correct
59	Partially correct	7 ms	344 KB	Output is partially correct
60	Partially correct	7 ms	344 KB	Output is partially correct
61	Partially correct	4 ms	344 KB	Output is partially correct
62	Correct	0 ms	344 KB	Output is correct
63	Correct	1 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	340 KB	Output is correct
72	Correct	0 ms	344 KB	Output is correct
73	Correct	0 ms	344 KB	Output is correct
74	Correct	1 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