답안 #800220

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
800220	2023-08-01T12:17:17 Z	denniskim	Group Photo (JOI21_ho_t3)	C++17	100 / 100	650 ms	592 KB

Main

#include <bits/stdc++.h>

using namespace std;
typedef long long ll;
typedef __int128 lll;
typedef long double ld;
typedef pair<ll, ll> pll;
typedef pair<ld, ld> pld;
#define MAX 9223372036854775807LL
#define MIN -9223372036854775807LL
#define INF 0x3f3f3f3f3f3f3f3f
#define fi first
#define se second
#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); cout << fixed; cout.precision(10);
#define sp << " "
#define en << "\n"
#define compress(v) sort(v.begin(), v.end()), v.erase(unique(v.begin(), v.end()), v.end())

ll n;
ll a[5010];
ll dp[5010];
ll w[5010];

struct fenwicktree
{
	ll bit[5010];
	
	void init(void)
	{
		for(ll i = 0 ; i <= n ; i++)
			bit[i] = 0;
	}
	
	void update(ll W, ll v)
	{
		if(W == 0)
			return;
		
		for(ll i = W ; i <= n ; i += (i & (-i)))
			bit[i] += v;
	}
	
	ll query(ll W)
	{
		ll ret = 0;
		
		for(ll i = W ; i > 0 ; i -= (i & (-i)))
			ret += bit[i];
		
		return ret;
	}
}BIT, BIT2;

int main(void)
{
	fastio
	
	cin >> n;
	
	for(ll i = 1 ; i <= n ; i++)
	{
		cin >> a[i];
		
		w[a[i]] = i;
		dp[i] = INF;
	}
	
	dp[0] = 0;
	
	for(ll i = 1 ; i <= n ; i++)
	{
		BIT.init();
		BIT2.init();
		
		for(ll j = 1 ; j < i ; j++)
			BIT.update(w[j], 1);
		
		ll sum = 0;
		
		for(ll j = i - 1 ; j >= 0 ; j--)
		{
			ll now = w[j + 1] + BIT.query(n) - BIT.query(w[j + 1] - 1);
			
			sum += now;
			dp[i] = min(dp[i], dp[j] + sum - (i + j + 1) * (i - j) / 2);
			
			BIT.update(w[j + 1], 1);
			BIT2.update(w[j + 1], 1);
			BIT.update(w[j], -1);
			sum -= BIT2.query(w[j]);
		}
	}
	
	cout << dp[n];
	return 0;
}

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	0 ms	328 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	0 ms	340 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	0 ms	340 KB	Output is correct
10	Correct	0 ms	340 KB	Output is correct

Subtask #2
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	0 ms	328 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	0 ms	340 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	0 ms	340 KB	Output is correct
10	Correct	0 ms	340 KB	Output is correct
11	Correct	0 ms	340 KB	Output is correct
12	Correct	0 ms	324 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	340 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	0 ms	340 KB	Output is correct
18	Correct	0 ms	328 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	0 ms	328 KB	Output is correct

Subtask #3
32.0 / 32.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	0 ms	328 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	0 ms	340 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	0 ms	340 KB	Output is correct
10	Correct	0 ms	340 KB	Output is correct
11	Correct	0 ms	340 KB	Output is correct
12	Correct	0 ms	324 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	340 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	0 ms	340 KB	Output is correct
18	Correct	0 ms	328 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	0 ms	328 KB	Output is correct
21	Correct	1 ms	340 KB	Output is correct
22	Correct	1 ms	340 KB	Output is correct
23	Correct	1 ms	340 KB	Output is correct
24	Correct	1 ms	340 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	1 ms	340 KB	Output is correct
27	Correct	1 ms	340 KB	Output is correct
28	Correct	1 ms	340 KB	Output is correct
29	Correct	1 ms	340 KB	Output is correct
30	Correct	1 ms	340 KB	Output is correct

Subtask #4
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	0 ms	328 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	0 ms	340 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	0 ms	340 KB	Output is correct
10	Correct	0 ms	340 KB	Output is correct
11	Correct	0 ms	340 KB	Output is correct
12	Correct	0 ms	324 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	340 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	0 ms	340 KB	Output is correct
18	Correct	0 ms	328 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	0 ms	328 KB	Output is correct
21	Correct	1 ms	340 KB	Output is correct
22	Correct	1 ms	340 KB	Output is correct
23	Correct	1 ms	340 KB	Output is correct
24	Correct	1 ms	340 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	1 ms	340 KB	Output is correct
27	Correct	1 ms	340 KB	Output is correct
28	Correct	1 ms	340 KB	Output is correct
29	Correct	1 ms	340 KB	Output is correct
30	Correct	1 ms	340 KB	Output is correct
31	Correct	13 ms	380 KB	Output is correct
32	Correct	9 ms	340 KB	Output is correct
33	Correct	9 ms	320 KB	Output is correct
34	Correct	9 ms	376 KB	Output is correct
35	Correct	11 ms	340 KB	Output is correct
36	Correct	9 ms	380 KB	Output is correct
37	Correct	8 ms	340 KB	Output is correct
38	Correct	9 ms	340 KB	Output is correct
39	Correct	9 ms	328 KB	Output is correct
40	Correct	9 ms	376 KB	Output is correct

Subtask #5
36.0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	0 ms	328 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	0 ms	340 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	0 ms	340 KB	Output is correct
10	Correct	0 ms	340 KB	Output is correct
11	Correct	0 ms	340 KB	Output is correct
12	Correct	0 ms	324 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	340 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	0 ms	340 KB	Output is correct
18	Correct	0 ms	328 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	0 ms	328 KB	Output is correct
21	Correct	1 ms	340 KB	Output is correct
22	Correct	1 ms	340 KB	Output is correct
23	Correct	1 ms	340 KB	Output is correct
24	Correct	1 ms	340 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	1 ms	340 KB	Output is correct
27	Correct	1 ms	340 KB	Output is correct
28	Correct	1 ms	340 KB	Output is correct
29	Correct	1 ms	340 KB	Output is correct
30	Correct	1 ms	340 KB	Output is correct
31	Correct	13 ms	380 KB	Output is correct
32	Correct	9 ms	340 KB	Output is correct
33	Correct	9 ms	320 KB	Output is correct
34	Correct	9 ms	376 KB	Output is correct
35	Correct	11 ms	340 KB	Output is correct
36	Correct	9 ms	380 KB	Output is correct
37	Correct	8 ms	340 KB	Output is correct
38	Correct	9 ms	340 KB	Output is correct
39	Correct	9 ms	328 KB	Output is correct
40	Correct	9 ms	376 KB	Output is correct
41	Correct	645 ms	520 KB	Output is correct
42	Correct	642 ms	520 KB	Output is correct
43	Correct	646 ms	540 KB	Output is correct
44	Correct	650 ms	464 KB	Output is correct
45	Correct	641 ms	524 KB	Output is correct
46	Correct	634 ms	520 KB	Output is correct
47	Correct	637 ms	524 KB	Output is correct
48	Correct	638 ms	592 KB	Output is correct
49	Correct	635 ms	468 KB	Output is correct
50	Correct	633 ms	524 KB	Output is correct
51	Correct	641 ms	520 KB	Output is correct
52	Correct	638 ms	532 KB	Output is correct
53	Correct	635 ms	520 KB	Output is correct
54	Correct	626 ms	520 KB	Output is correct
55	Correct	640 ms	520 KB	Output is correct

답안 #800220

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 7.0 / 7.0

Subtask #3 32.0 / 32.0

Subtask #4 20.0 / 20.0

Subtask #5 36.0 / 36.0

Subtask #1
5.0 / 5.0

Subtask #2
7.0 / 7.0

Subtask #3
32.0 / 32.0

Subtask #4
20.0 / 20.0

Subtask #5
36.0 / 36.0