답안 #124245

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
124245	2019-07-02T21:51:13 Z	tutis	Mountains (IOI17_mountains)	C++17	20 / 100	1000 ms	892 KB

mountains

#pragma GCC optimize ("O3")
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
bitset<2000>ok[2000];
unordered_map<bitset<2000>, int>M;
int dp(bitset<2000> x)
{
	//auto it = M.find(x);
	//if (it != M.end())
	//	return it->second;
	int i = x._Find_first();
	if (i >= 2000)
		return 0;
	x[i] = false;
	return /*M[x] = */max(1 + dp(x & ok[i]), dp(x));
}
int maximum_deevs(vector<int> y)
{
	M.clear();
	for (int i = 0; i < 2000; i++)
	{
		ok[i].reset();
	}
	bitset<2000>deevs;
	for (ll i = 0; i < (ll)y.size(); i++)
	{
		ll k = i + 1;
		for (ll j = i + 1; j < (ll)y.size(); j++)
		{
			if ((y[j] - y[i]) * (k - i) >= (y[k] - y[i]) * (j - i))
				k = j;
			if (j != k)
			{
				ok[i][j] = true;
			}
			else
				ok[i][j] = false;
		}
		deevs[i] = true;
	}
	return dp(deevs);
}/*
int main()
{
	cout << maximum_deevs({ 6, 1, 5, 2, 3, 1}) << endl;//3
	cout << maximum_deevs({ 0, 1, 2}) << endl;//1
}/**/

Compilation message

mountains.cpp:49:2: warning: "/*" within comment [-Wcomment]
 }/**/

Subtask #1

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	760 KB	Output is correct
2	Correct	2 ms	760 KB	Output is correct
3	Correct	2 ms	760 KB	Output is correct
4	Correct	2 ms	760 KB	Output is correct
5	Correct	2 ms	760 KB	Output is correct
6	Correct	2 ms	760 KB	Output is correct
7	Correct	2 ms	760 KB	Output is correct
8	Correct	2 ms	760 KB	Output is correct
9	Correct	3 ms	760 KB	Output is correct
10	Correct	3 ms	760 KB	Output is correct
11	Correct	3 ms	760 KB	Output is correct
12	Correct	2 ms	760 KB	Output is correct
13	Correct	3 ms	760 KB	Output is correct
14	Correct	3 ms	760 KB	Output is correct
15	Correct	3 ms	760 KB	Output is correct
16	Correct	2 ms	760 KB	Output is correct

Subtask #2

0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	760 KB	Output is correct
2	Correct	2 ms	760 KB	Output is correct
3	Correct	2 ms	760 KB	Output is correct
4	Correct	2 ms	760 KB	Output is correct
5	Correct	2 ms	760 KB	Output is correct
6	Correct	2 ms	760 KB	Output is correct
7	Correct	2 ms	760 KB	Output is correct
8	Correct	2 ms	760 KB	Output is correct
9	Correct	3 ms	760 KB	Output is correct
10	Correct	3 ms	760 KB	Output is correct
11	Correct	3 ms	760 KB	Output is correct
12	Correct	2 ms	760 KB	Output is correct
13	Correct	3 ms	760 KB	Output is correct
14	Correct	3 ms	760 KB	Output is correct
15	Correct	3 ms	760 KB	Output is correct
16	Correct	2 ms	760 KB	Output is correct
17	Correct	809 ms	892 KB	Output is correct
18	Correct	704 ms	892 KB	Output is correct
19	Correct	333 ms	764 KB	Output is correct
20	Correct	987 ms	888 KB	Output is correct
21	Correct	5 ms	888 KB	Output is correct
22	Correct	5 ms	888 KB	Output is correct
23	Correct	5 ms	888 KB	Output is correct
24	Correct	4 ms	888 KB	Output is correct
25	Correct	5 ms	888 KB	Output is correct
26	Correct	5 ms	888 KB	Output is correct
27	Correct	997 ms	888 KB	Output is correct
28	Correct	18 ms	760 KB	Output is correct
29	Correct	8 ms	764 KB	Output is correct
30	Correct	10 ms	888 KB	Output is correct
31	Correct	4 ms	888 KB	Output is correct
32	Correct	6 ms	888 KB	Output is correct
33	Execution timed out	1076 ms	888 KB	Time limit exceeded
34	Halted	0 ms	0 KB	-

Subtask #3

0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	760 KB	Output is correct
2	Correct	2 ms	760 KB	Output is correct
3	Correct	2 ms	760 KB	Output is correct
4	Correct	2 ms	760 KB	Output is correct
5	Correct	2 ms	760 KB	Output is correct
6	Correct	2 ms	760 KB	Output is correct
7	Correct	2 ms	760 KB	Output is correct
8	Correct	2 ms	760 KB	Output is correct
9	Correct	3 ms	760 KB	Output is correct
10	Correct	3 ms	760 KB	Output is correct
11	Correct	3 ms	760 KB	Output is correct
12	Correct	2 ms	760 KB	Output is correct
13	Correct	3 ms	760 KB	Output is correct
14	Correct	3 ms	760 KB	Output is correct
15	Correct	3 ms	760 KB	Output is correct
16	Correct	2 ms	760 KB	Output is correct
17	Correct	809 ms	892 KB	Output is correct
18	Correct	704 ms	892 KB	Output is correct
19	Correct	333 ms	764 KB	Output is correct
20	Correct	987 ms	888 KB	Output is correct
21	Correct	5 ms	888 KB	Output is correct
22	Correct	5 ms	888 KB	Output is correct
23	Correct	5 ms	888 KB	Output is correct
24	Correct	4 ms	888 KB	Output is correct
25	Correct	5 ms	888 KB	Output is correct
26	Correct	5 ms	888 KB	Output is correct
27	Correct	997 ms	888 KB	Output is correct
28	Correct	18 ms	760 KB	Output is correct
29	Correct	8 ms	764 KB	Output is correct
30	Correct	10 ms	888 KB	Output is correct
31	Correct	4 ms	888 KB	Output is correct
32	Correct	6 ms	888 KB	Output is correct
33	Execution timed out	1076 ms	888 KB	Time limit exceeded
34	Halted	0 ms	0 KB	-

Subtask #4

0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	760 KB	Output is correct
2	Correct	2 ms	760 KB	Output is correct
3	Correct	2 ms	760 KB	Output is correct
4	Correct	2 ms	760 KB	Output is correct
5	Correct	2 ms	760 KB	Output is correct
6	Correct	2 ms	760 KB	Output is correct
7	Correct	2 ms	760 KB	Output is correct
8	Correct	2 ms	760 KB	Output is correct
9	Correct	3 ms	760 KB	Output is correct
10	Correct	3 ms	760 KB	Output is correct
11	Correct	3 ms	760 KB	Output is correct
12	Correct	2 ms	760 KB	Output is correct
13	Correct	3 ms	760 KB	Output is correct
14	Correct	3 ms	760 KB	Output is correct
15	Correct	3 ms	760 KB	Output is correct
16	Correct	2 ms	760 KB	Output is correct
17	Correct	809 ms	892 KB	Output is correct
18	Correct	704 ms	892 KB	Output is correct
19	Correct	333 ms	764 KB	Output is correct
20	Correct	987 ms	888 KB	Output is correct
21	Correct	5 ms	888 KB	Output is correct
22	Correct	5 ms	888 KB	Output is correct
23	Correct	5 ms	888 KB	Output is correct
24	Correct	4 ms	888 KB	Output is correct
25	Correct	5 ms	888 KB	Output is correct
26	Correct	5 ms	888 KB	Output is correct
27	Correct	997 ms	888 KB	Output is correct
28	Correct	18 ms	760 KB	Output is correct
29	Correct	8 ms	764 KB	Output is correct
30	Correct	10 ms	888 KB	Output is correct
31	Correct	4 ms	888 KB	Output is correct
32	Correct	6 ms	888 KB	Output is correct
33	Execution timed out	1076 ms	888 KB	Time limit exceeded
34	Halted	0 ms	0 KB	-