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답안 #124775

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
124775 2019-07-03T23:48:01 Z tutis Mountains (IOI17_mountains) C++17
100 / 100
 905 ms 235512 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)
	{
		int t = i / 64;
		i %= 64;
		A[t] |= (1ull << i);
		h ^= (1ull << i);
		return;
	}
	void unset(int i)
	{
		int t = i / 64;
		i %= 64;
		A[t] &= (~(1ull << i));
		h ^= (1ull << i);
		return;
	}
	void andas(BitSet &o)
	{
		h = 0;
		for (int t = 0; t < 32; t++)
		{
			A[t] &= o.A[t];
			h ^= A[t];
		}
	}
	int First(int t)
	{
		int ret = 64 * t;
		for (; 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[2000];
int dp(BitSet x, int nuo = 0)
{
	int i = x.First(nuo / 64);
	if (i >= 2000)
		return 0;
	int &ans = M[i][x];
	if (ans != 0)
		return ans;
	x.unset(i);
	ans = dp(x, i + 1);
	x.andas(ok[i]);
	ans = max(ans, 1 + dp(x, i + 1));
	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:105:2: warning: "/*" within comment [-Wcomment]
 }/**/

Subtask #1
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 892 KB Output is correct
2 Correct 2 ms 888 KB Output is correct
3 Correct 2 ms 888 KB Output is correct
4 Correct 2 ms 888 KB Output is correct
5 Correct 2 ms 888 KB Output is correct
6 Correct 2 ms 1016 KB Output is correct
7 Correct 2 ms 888 KB Output is correct
8 Correct 2 ms 892 KB Output is correct
9 Correct 2 ms 888 KB Output is correct
10 Correct 2 ms 1016 KB Output is correct
11 Correct 2 ms 888 KB Output is correct
12 Correct 2 ms 888 KB Output is correct
13 Correct 3 ms 1016 KB Output is correct
14 Correct 2 ms 1016 KB Output is correct
15 Correct 2 ms 1016 KB Output is correct
16 Correct 3 ms 1016 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 892 KB Output is correct
2 Correct 2 ms 888 KB Output is correct
3 Correct 2 ms 888 KB Output is correct
4 Correct 2 ms 888 KB Output is correct
5 Correct 2 ms 888 KB Output is correct
6 Correct 2 ms 1016 KB Output is correct
7 Correct 2 ms 888 KB Output is correct
8 Correct 2 ms 892 KB Output is correct
9 Correct 2 ms 888 KB Output is correct
10 Correct 2 ms 1016 KB Output is correct
11 Correct 2 ms 888 KB Output is correct
12 Correct 2 ms 888 KB Output is correct
13 Correct 3 ms 1016 KB Output is correct
14 Correct 2 ms 1016 KB Output is correct
15 Correct 2 ms 1016 KB Output is correct
16 Correct 3 ms 1016 KB Output is correct
17 Correct 2 ms 892 KB Output is correct
18 Correct 2 ms 1016 KB Output is correct
19 Correct 3 ms 1064 KB Output is correct
20 Correct 2 ms 1016 KB Output is correct
21 Correct 2 ms 1016 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 1016 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 1016 KB Output is correct
28 Correct 3 ms 1016 KB Output is correct
29 Correct 2 ms 1016 KB Output is correct
30 Correct 3 ms 1016 KB Output is correct
31 Correct 3 ms 1016 KB Output is correct
32 Correct 3 ms 1016 KB Output is correct
33 Correct 2 ms 1016 KB Output is correct
34 Correct 2 ms 1016 KB Output is correct
35 Correct 2 ms 888 KB Output is correct
36 Correct 3 ms 1016 KB Output is correct
37 Correct 2 ms 1020 KB Output is correct
38 Correct 2 ms 1016 KB Output is correct

Subtask #3
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 892 KB Output is correct
2 Correct 2 ms 888 KB Output is correct
3 Correct 2 ms 888 KB Output is correct
4 Correct 2 ms 888 KB Output is correct
5 Correct 2 ms 888 KB Output is correct
6 Correct 2 ms 1016 KB Output is correct
7 Correct 2 ms 888 KB Output is correct
8 Correct 2 ms 892 KB Output is correct
9 Correct 2 ms 888 KB Output is correct
10 Correct 2 ms 1016 KB Output is correct
11 Correct 2 ms 888 KB Output is correct
12 Correct 2 ms 888 KB Output is correct
13 Correct 3 ms 1016 KB Output is correct
14 Correct 2 ms 1016 KB Output is correct
15 Correct 2 ms 1016 KB Output is correct
16 Correct 3 ms 1016 KB Output is correct
17 Correct 2 ms 892 KB Output is correct
18 Correct 2 ms 1016 KB Output is correct
19 Correct 3 ms 1064 KB Output is correct
20 Correct 2 ms 1016 KB Output is correct
21 Correct 2 ms 1016 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 1016 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 1016 KB Output is correct
28 Correct 3 ms 1016 KB Output is correct
29 Correct 2 ms 1016 KB Output is correct
30 Correct 3 ms 1016 KB Output is correct
31 Correct 3 ms 1016 KB Output is correct
32 Correct 3 ms 1016 KB Output is correct
33 Correct 2 ms 1016 KB Output is correct
34 Correct 2 ms 1016 KB Output is correct
35 Correct 2 ms 888 KB Output is correct
36 Correct 3 ms 1016 KB Output is correct
37 Correct 2 ms 1020 KB Output is correct
38 Correct 2 ms 1016 KB Output is correct
39 Correct 3 ms 1272 KB Output is correct
40 Correct 3 ms 1276 KB Output is correct
41 Correct 3 ms 1400 KB Output is correct
42 Correct 4 ms 1528 KB Output is correct
43 Correct 3 ms 1400 KB Output is correct
44 Correct 3 ms 1400 KB Output is correct
45 Correct 5 ms 2168 KB Output is correct
46 Correct 5 ms 2168 KB Output is correct
47 Correct 4 ms 2040 KB Output is correct
48 Correct 5 ms 2168 KB Output is correct
49 Correct 5 ms 2040 KB Output is correct
50 Correct 5 ms 2040 KB Output is correct
51 Correct 4 ms 1528 KB Output is correct
52 Correct 6 ms 2552 KB Output is correct
53 Correct 5 ms 2424 KB Output is correct
54 Correct 6 ms 2552 KB Output is correct
55 Correct 5 ms 2424 KB Output is correct
56 Correct 5 ms 2424 KB Output is correct
57 Correct 3 ms 1144 KB Output is correct
58 Correct 5 ms 2552 KB Output is correct
59 Correct 4 ms 1656 KB Output is correct
60 Correct 3 ms 1272 KB Output is correct
61 Correct 3 ms 1272 KB Output is correct

Subtask #4
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 892 KB Output is correct
2 Correct 2 ms 888 KB Output is correct
3 Correct 2 ms 888 KB Output is correct
4 Correct 2 ms 888 KB Output is correct
5 Correct 2 ms 888 KB Output is correct
6 Correct 2 ms 1016 KB Output is correct
7 Correct 2 ms 888 KB Output is correct
8 Correct 2 ms 892 KB Output is correct
9 Correct 2 ms 888 KB Output is correct
10 Correct 2 ms 1016 KB Output is correct
11 Correct 2 ms 888 KB Output is correct
12 Correct 2 ms 888 KB Output is correct
13 Correct 3 ms 1016 KB Output is correct
14 Correct 2 ms 1016 KB Output is correct
15 Correct 2 ms 1016 KB Output is correct
16 Correct 3 ms 1016 KB Output is correct
17 Correct 2 ms 892 KB Output is correct
18 Correct 2 ms 1016 KB Output is correct
19 Correct 3 ms 1064 KB Output is correct
20 Correct 2 ms 1016 KB Output is correct
21 Correct 2 ms 1016 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 1016 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 1016 KB Output is correct
28 Correct 3 ms 1016 KB Output is correct
29 Correct 2 ms 1016 KB Output is correct
30 Correct 3 ms 1016 KB Output is correct
31 Correct 3 ms 1016 KB Output is correct
32 Correct 3 ms 1016 KB Output is correct
33 Correct 2 ms 1016 KB Output is correct
34 Correct 2 ms 1016 KB Output is correct
35 Correct 2 ms 888 KB Output is correct
36 Correct 3 ms 1016 KB Output is correct
37 Correct 2 ms 1020 KB Output is correct
38 Correct 2 ms 1016 KB Output is correct
39 Correct 3 ms 1272 KB Output is correct
40 Correct 3 ms 1276 KB Output is correct
41 Correct 3 ms 1400 KB Output is correct
42 Correct 4 ms 1528 KB Output is correct
43 Correct 3 ms 1400 KB Output is correct
44 Correct 3 ms 1400 KB Output is correct
45 Correct 5 ms 2168 KB Output is correct
46 Correct 5 ms 2168 KB Output is correct
47 Correct 4 ms 2040 KB Output is correct
48 Correct 5 ms 2168 KB Output is correct
49 Correct 5 ms 2040 KB Output is correct
50 Correct 5 ms 2040 KB Output is correct
51 Correct 4 ms 1528 KB Output is correct
52 Correct 6 ms 2552 KB Output is correct
53 Correct 5 ms 2424 KB Output is correct
54 Correct 6 ms 2552 KB Output is correct
55 Correct 5 ms 2424 KB Output is correct
56 Correct 5 ms 2424 KB Output is correct
57 Correct 3 ms 1144 KB Output is correct
58 Correct 5 ms 2552 KB Output is correct
59 Correct 4 ms 1656 KB Output is correct
60 Correct 3 ms 1272 KB Output is correct
61 Correct 3 ms 1272 KB Output is correct
62 Correct 9 ms 3320 KB Output is correct
63 Correct 22 ms 6776 KB Output is correct
64 Correct 19 ms 5112 KB Output is correct
65 Correct 21 ms 6136 KB Output is correct
66 Correct 21 ms 6136 KB Output is correct
67 Correct 20 ms 5752 KB Output is correct
68 Correct 19 ms 5496 KB Output is correct
69 Correct 20 ms 5884 KB Output is correct
70 Correct 104 ms 38520 KB Output is correct
71 Correct 88 ms 32584 KB Output is correct
72 Correct 86 ms 34296 KB Output is correct
73 Correct 82 ms 31864 KB Output is correct
74 Correct 90 ms 33784 KB Output is correct
75 Correct 94 ms 34168 KB Output is correct
76 Correct 22 ms 6648 KB Output is correct
77 Correct 14 ms 4728 KB Output is correct
78 Correct 12 ms 4088 KB Output is correct
79 Correct 12 ms 3960 KB Output is correct
80 Correct 12 ms 3960 KB Output is correct
81 Correct 13 ms 4216 KB Output is correct
82 Correct 14 ms 2168 KB Output is correct
83 Correct 287 ms 91432 KB Output is correct
84 Correct 905 ms 235512 KB Output is correct
85 Correct 16 ms 2808 KB Output is correct
86 Correct 16 ms 3448 KB Output is correct