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답안 #124261

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
124261 2019-07-02T22:29:29 Z tutis Mountains (IOI17_mountains) C++17
100 / 100
 857 ms 235324 KB 
#pragma GCC optimize ("O3")
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
struct BitSet
{
	unsigned long long A[32];
	unsigned long long h;
	BitSet()
	{
		h = 0;
		fill_n(A, 32, 0ull);
	}
	bool operator<(const BitSet& o)const
	{
		if (h != o.h)
			return h < o.h;
		for (int i = 0; i < 32; i++)
		{
			if (A[i] != o.A[i])
				return A[i] < o.A[i];
		}
		return false;
	}
	void set(int i)
	{
		for (int t = 0; t < 32; t++)
		{
			if (i < 64)
			{
				h ^= A[t];
				A[t] |= (1ull << i);
				h ^= A[t];
				return;
			}
			else
			{
				i -= 64;
			}
		}
	}
	void unset(int i)
	{
		for (int t = 0; t < 32; t++)
		{
			if (i < 64)
			{
				h ^= A[t];
				A[t] &= (~(1ull << i));
				h ^= A[t];
				return;
			}
			else
			{
				i -= 64;
			}
		}
	}
	void andas(BitSet &o)
	{
		h = 0;
		for (int t = 0; t < 32; t++)
		{
			A[t] &= o.A[t];
			h ^= A[t];
		}
	}
	int First()
	{
		int ret = 0;
		for (int t = 0; t < 32; t++)
		{
			if (A[t] == 0)
			{
				ret += 64;
			}
			else
			{
				return ret + __builtin_ctzll(A[t]);
			}
		}
		return ret;
	}
};
BitSet ok[2000];
map<BitSet, int>M;
int dp(BitSet x)
{
	int i = x.First();
	if (i >= 2000)
		return 0;
	int &ans = M[x];
	if (ans != 0)
		return ans;
	x.unset(i);
	ans = dp(x);
	x.andas(ok[i]);
	ans = max(ans, 1 + dp(x));
	return ans;
}
int maximum_deevs(vector<int> y)
{
	BitSet 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 (k != j)
				ok[i].set(j);
		}
		deevs.set(i);
	}
	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:123:2: 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 892 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 888 KB Output is correct
7 Correct 2 ms 888 KB Output is correct
8 Correct 2 ms 888 KB Output is correct
9 Correct 2 ms 892 KB Output is correct
10 Correct 2 ms 888 KB Output is correct
11 Correct 2 ms 760 KB Output is correct
12 Correct 2 ms 888 KB Output is correct
13 Correct 2 ms 888 KB Output is correct
14 Correct 2 ms 888 KB Output is correct
15 Correct 2 ms 888 KB Output is correct
16 Correct 2 ms 888 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 760 KB Output is correct
2 Correct 2 ms 892 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 888 KB Output is correct
7 Correct 2 ms 888 KB Output is correct
8 Correct 2 ms 888 KB Output is correct
9 Correct 2 ms 892 KB Output is correct
10 Correct 2 ms 888 KB Output is correct
11 Correct 2 ms 760 KB Output is correct
12 Correct 2 ms 888 KB Output is correct
13 Correct 2 ms 888 KB Output is correct
14 Correct 2 ms 888 KB Output is correct
15 Correct 2 ms 888 KB Output is correct
16 Correct 2 ms 888 KB Output is correct
17 Correct 2 ms 888 KB Output is correct
18 Correct 2 ms 888 KB Output is correct
19 Correct 2 ms 888 KB Output is correct
20 Correct 2 ms 888 KB Output is correct
21 Correct 2 ms 888 KB Output is correct
22 Correct 2 ms 888 KB Output is correct
23 Correct 2 ms 888 KB Output is correct
24 Correct 2 ms 888 KB Output is correct
25 Correct 2 ms 888 KB Output is correct
26 Correct 2 ms 888 KB Output is correct
27 Correct 2 ms 888 KB Output is correct
28 Correct 2 ms 888 KB Output is correct
29 Correct 2 ms 888 KB Output is correct
30 Correct 2 ms 888 KB Output is correct
31 Correct 2 ms 888 KB Output is correct
32 Correct 2 ms 888 KB Output is correct
33 Correct 2 ms 964 KB Output is correct
34 Correct 2 ms 892 KB Output is correct
35 Correct 2 ms 888 KB Output is correct
36 Correct 2 ms 888 KB Output is correct
37 Correct 2 ms 888 KB Output is correct
38 Correct 2 ms 888 KB Output is correct

Subtask #3
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 760 KB Output is correct
2 Correct 2 ms 892 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 888 KB Output is correct
7 Correct 2 ms 888 KB Output is correct
8 Correct 2 ms 888 KB Output is correct
9 Correct 2 ms 892 KB Output is correct
10 Correct 2 ms 888 KB Output is correct
11 Correct 2 ms 760 KB Output is correct
12 Correct 2 ms 888 KB Output is correct
13 Correct 2 ms 888 KB Output is correct
14 Correct 2 ms 888 KB Output is correct
15 Correct 2 ms 888 KB Output is correct
16 Correct 2 ms 888 KB Output is correct
17 Correct 2 ms 888 KB Output is correct
18 Correct 2 ms 888 KB Output is correct
19 Correct 2 ms 888 KB Output is correct
20 Correct 2 ms 888 KB Output is correct
21 Correct 2 ms 888 KB Output is correct
22 Correct 2 ms 888 KB Output is correct
23 Correct 2 ms 888 KB Output is correct
24 Correct 2 ms 888 KB Output is correct
25 Correct 2 ms 888 KB Output is correct
26 Correct 2 ms 888 KB Output is correct
27 Correct 2 ms 888 KB Output is correct
28 Correct 2 ms 888 KB Output is correct
29 Correct 2 ms 888 KB Output is correct
30 Correct 2 ms 888 KB Output is correct
31 Correct 2 ms 888 KB Output is correct
32 Correct 2 ms 888 KB Output is correct
33 Correct 2 ms 964 KB Output is correct
34 Correct 2 ms 892 KB Output is correct
35 Correct 2 ms 888 KB Output is correct
36 Correct 2 ms 888 KB Output is correct
37 Correct 2 ms 888 KB Output is correct
38 Correct 2 ms 888 KB Output is correct
39 Correct 3 ms 1144 KB Output is correct
40 Correct 3 ms 1272 KB Output is correct
41 Correct 4 ms 1372 KB Output is correct
42 Correct 4 ms 1400 KB Output is correct
43 Correct 3 ms 1276 KB Output is correct
44 Correct 3 ms 1272 KB Output is correct
45 Correct 5 ms 2040 KB Output is correct
46 Correct 5 ms 2040 KB Output is correct
47 Correct 5 ms 1912 KB Output is correct
48 Correct 5 ms 2040 KB Output is correct
49 Correct 5 ms 2040 KB Output is correct
50 Correct 5 ms 1912 KB Output is correct
51 Correct 4 ms 1400 KB Output is correct
52 Correct 6 ms 2428 KB Output is correct
53 Correct 5 ms 2296 KB Output is correct
54 Correct 6 ms 2424 KB Output is correct
55 Correct 5 ms 2296 KB Output is correct
56 Correct 5 ms 2424 KB Output is correct
57 Correct 3 ms 1016 KB Output is correct
58 Correct 6 ms 2424 KB Output is correct
59 Correct 4 ms 1660 KB Output is correct
60 Correct 3 ms 1144 KB Output is correct
61 Correct 3 ms 1144 KB Output is correct

Subtask #4
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 760 KB Output is correct
2 Correct 2 ms 892 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 888 KB Output is correct
7 Correct 2 ms 888 KB Output is correct
8 Correct 2 ms 888 KB Output is correct
9 Correct 2 ms 892 KB Output is correct
10 Correct 2 ms 888 KB Output is correct
11 Correct 2 ms 760 KB Output is correct
12 Correct 2 ms 888 KB Output is correct
13 Correct 2 ms 888 KB Output is correct
14 Correct 2 ms 888 KB Output is correct
15 Correct 2 ms 888 KB Output is correct
16 Correct 2 ms 888 KB Output is correct
17 Correct 2 ms 888 KB Output is correct
18 Correct 2 ms 888 KB Output is correct
19 Correct 2 ms 888 KB Output is correct
20 Correct 2 ms 888 KB Output is correct
21 Correct 2 ms 888 KB Output is correct
22 Correct 2 ms 888 KB Output is correct
23 Correct 2 ms 888 KB Output is correct
24 Correct 2 ms 888 KB Output is correct
25 Correct 2 ms 888 KB Output is correct
26 Correct 2 ms 888 KB Output is correct
27 Correct 2 ms 888 KB Output is correct
28 Correct 2 ms 888 KB Output is correct
29 Correct 2 ms 888 KB Output is correct
30 Correct 2 ms 888 KB Output is correct
31 Correct 2 ms 888 KB Output is correct
32 Correct 2 ms 888 KB Output is correct
33 Correct 2 ms 964 KB Output is correct
34 Correct 2 ms 892 KB Output is correct
35 Correct 2 ms 888 KB Output is correct
36 Correct 2 ms 888 KB Output is correct
37 Correct 2 ms 888 KB Output is correct
38 Correct 2 ms 888 KB Output is correct
39 Correct 3 ms 1144 KB Output is correct
40 Correct 3 ms 1272 KB Output is correct
41 Correct 4 ms 1372 KB Output is correct
42 Correct 4 ms 1400 KB Output is correct
43 Correct 3 ms 1276 KB Output is correct
44 Correct 3 ms 1272 KB Output is correct
45 Correct 5 ms 2040 KB Output is correct
46 Correct 5 ms 2040 KB Output is correct
47 Correct 5 ms 1912 KB Output is correct
48 Correct 5 ms 2040 KB Output is correct
49 Correct 5 ms 2040 KB Output is correct
50 Correct 5 ms 1912 KB Output is correct
51 Correct 4 ms 1400 KB Output is correct
52 Correct 6 ms 2428 KB Output is correct
53 Correct 5 ms 2296 KB Output is correct
54 Correct 6 ms 2424 KB Output is correct
55 Correct 5 ms 2296 KB Output is correct
56 Correct 5 ms 2424 KB Output is correct
57 Correct 3 ms 1016 KB Output is correct
58 Correct 6 ms 2424 KB Output is correct
59 Correct 4 ms 1660 KB Output is correct
60 Correct 3 ms 1144 KB Output is correct
61 Correct 3 ms 1144 KB Output is correct
62 Correct 12 ms 3192 KB Output is correct
63 Correct 49 ms 6652 KB Output is correct
64 Correct 45 ms 5112 KB Output is correct
65 Correct 47 ms 6136 KB Output is correct
66 Correct 47 ms 6008 KB Output is correct
67 Correct 46 ms 5624 KB Output is correct
68 Correct 46 ms 5368 KB Output is correct
69 Correct 48 ms 5852 KB Output is correct
70 Correct 146 ms 38520 KB Output is correct
71 Correct 125 ms 32504 KB Output is correct
72 Correct 137 ms 34168 KB Output is correct
73 Correct 123 ms 31864 KB Output is correct
74 Correct 149 ms 33632 KB Output is correct
75 Correct 150 ms 34040 KB Output is correct
76 Correct 54 ms 6692 KB Output is correct
77 Correct 17 ms 4728 KB Output is correct
78 Correct 14 ms 3960 KB Output is correct
79 Correct 16 ms 3960 KB Output is correct
80 Correct 15 ms 3832 KB Output is correct
81 Correct 14 ms 4108 KB Output is correct
82 Correct 38 ms 2268 KB Output is correct
83 Correct 300 ms 91256 KB Output is correct
84 Correct 857 ms 235324 KB Output is correct
85 Correct 39 ms 2808 KB Output is correct
86 Correct 41 ms 3448 KB Output is correct