답안 #257045

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
257045	2020-08-03T14:39:48 Z	akat	Collecting Stamps 3 (JOI20_ho_t3)	C++14	100 / 100	112 ms	127736 KB

ho_t3

#include<bits/stdc++.h>
using namespace std;
const long long N = 201;
long long t[N], x[N], ans;
long long dp[N][N][N][2];
void update(long long l,long long r,long long cnt,long long j,long long time)
{
	long long cur = l;
	if(j) cur = r;
	if(t[cur] >= time) cnt++;
	long long &curr = dp[l][r][cnt][j];
	if(curr == -1 || curr > time) curr = time;
	ans = max(ans, cnt);
}
int main()
{
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	long long n, la, i, j, k;
	cin>>n>>la;
	for(i = 1; i <= n; i++)
		cin>>x[i];
	for(i = 1; i <= n; i++)
		cin>>t[i];
	memset(dp, -1, sizeof(dp));
	x[0] = 0;
	update(1, n, 0, 0, x[1]);
	update(1, n, 0, 1, la - x[n]);
	for(i = 1; i <= n; i++)
		for(j = 1; j <= i; j++)
			for(k = 0; k <= i; k++)
			{
				long long l = j;
				long long r = n - i + j;
				if(l >= r) continue;
				if(dp[l][r][k][0] != -1)
				{
					long long time = dp[l][r][k][0];
					update(l+1, r, k, 0, time + x[l+1] - x[l]);
					update(l+1, r, k, 1, time + x[l] + la - x[r]);
				}
				if(dp[l][r][k][1] != -1)
				{
					long long time = dp[l][r][k][1];
					update(l, r-1, k, 1, time + x[r] - x[r-1]);
					update(l, r-1, k, 0, time + la - x[r] + x[l]);
				}
			}
	cout<<ans<<'\n';
}

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	64 ms	127480 KB	Output is correct
2	Correct	69 ms	127480 KB	Output is correct
3	Correct	73 ms	127480 KB	Output is correct
4	Correct	69 ms	127480 KB	Output is correct
5	Correct	68 ms	127480 KB	Output is correct
6	Correct	62 ms	127480 KB	Output is correct
7	Correct	63 ms	127576 KB	Output is correct
8	Correct	62 ms	127480 KB	Output is correct
9	Correct	63 ms	127508 KB	Output is correct
10	Correct	65 ms	127480 KB	Output is correct
11	Correct	69 ms	127480 KB	Output is correct
12	Correct	65 ms	127480 KB	Output is correct
13	Correct	63 ms	127480 KB	Output is correct
14	Correct	69 ms	127480 KB	Output is correct
15	Correct	65 ms	127480 KB	Output is correct
16	Correct	62 ms	127480 KB	Output is correct
17	Correct	62 ms	127480 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	64 ms	127480 KB	Output is correct
2	Correct	69 ms	127480 KB	Output is correct
3	Correct	73 ms	127480 KB	Output is correct
4	Correct	69 ms	127480 KB	Output is correct
5	Correct	68 ms	127480 KB	Output is correct
6	Correct	62 ms	127480 KB	Output is correct
7	Correct	63 ms	127576 KB	Output is correct
8	Correct	62 ms	127480 KB	Output is correct
9	Correct	63 ms	127508 KB	Output is correct
10	Correct	65 ms	127480 KB	Output is correct
11	Correct	69 ms	127480 KB	Output is correct
12	Correct	65 ms	127480 KB	Output is correct
13	Correct	63 ms	127480 KB	Output is correct
14	Correct	69 ms	127480 KB	Output is correct
15	Correct	65 ms	127480 KB	Output is correct
16	Correct	62 ms	127480 KB	Output is correct
17	Correct	62 ms	127480 KB	Output is correct
18	Correct	63 ms	127480 KB	Output is correct
19	Correct	63 ms	127608 KB	Output is correct
20	Correct	63 ms	127480 KB	Output is correct
21	Correct	63 ms	127480 KB	Output is correct
22	Correct	63 ms	127480 KB	Output is correct
23	Correct	62 ms	127480 KB	Output is correct
24	Correct	64 ms	127480 KB	Output is correct
25	Correct	64 ms	127452 KB	Output is correct
26	Correct	64 ms	127480 KB	Output is correct
27	Correct	65 ms	127480 KB	Output is correct
28	Correct	64 ms	127480 KB	Output is correct
29	Correct	64 ms	127608 KB	Output is correct
30	Correct	63 ms	127480 KB	Output is correct
31	Correct	62 ms	127480 KB	Output is correct
32	Correct	66 ms	127480 KB	Output is correct
33	Correct	62 ms	127480 KB	Output is correct
34	Correct	62 ms	127480 KB	Output is correct
35	Correct	63 ms	127484 KB	Output is correct

Subtask #3
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	64 ms	127480 KB	Output is correct
2	Correct	69 ms	127480 KB	Output is correct
3	Correct	73 ms	127480 KB	Output is correct
4	Correct	69 ms	127480 KB	Output is correct
5	Correct	68 ms	127480 KB	Output is correct
6	Correct	62 ms	127480 KB	Output is correct
7	Correct	63 ms	127576 KB	Output is correct
8	Correct	62 ms	127480 KB	Output is correct
9	Correct	63 ms	127508 KB	Output is correct
10	Correct	65 ms	127480 KB	Output is correct
11	Correct	69 ms	127480 KB	Output is correct
12	Correct	65 ms	127480 KB	Output is correct
13	Correct	63 ms	127480 KB	Output is correct
14	Correct	69 ms	127480 KB	Output is correct
15	Correct	65 ms	127480 KB	Output is correct
16	Correct	62 ms	127480 KB	Output is correct
17	Correct	62 ms	127480 KB	Output is correct
18	Correct	87 ms	127480 KB	Output is correct
19	Correct	77 ms	127472 KB	Output is correct
20	Correct	69 ms	127480 KB	Output is correct
21	Correct	76 ms	127480 KB	Output is correct
22	Correct	82 ms	127480 KB	Output is correct
23	Correct	68 ms	127480 KB	Output is correct
24	Correct	64 ms	127480 KB	Output is correct
25	Correct	68 ms	127480 KB	Output is correct
26	Correct	64 ms	127484 KB	Output is correct
27	Correct	69 ms	127480 KB	Output is correct
28	Correct	65 ms	127480 KB	Output is correct
29	Correct	70 ms	127480 KB	Output is correct
30	Correct	65 ms	127520 KB	Output is correct
31	Correct	67 ms	127480 KB	Output is correct
32	Correct	64 ms	127480 KB	Output is correct
33	Correct	69 ms	127480 KB	Output is correct
34	Correct	63 ms	127480 KB	Output is correct
35	Correct	67 ms	127480 KB	Output is correct
36	Correct	64 ms	127480 KB	Output is correct
37	Correct	66 ms	127480 KB	Output is correct
38	Correct	66 ms	127484 KB	Output is correct
39	Correct	66 ms	127480 KB	Output is correct
40	Correct	65 ms	127480 KB	Output is correct
41	Correct	103 ms	127608 KB	Output is correct
42	Correct	68 ms	127480 KB	Output is correct
43	Correct	111 ms	127480 KB	Output is correct
44	Correct	72 ms	127480 KB	Output is correct
45	Correct	104 ms	127480 KB	Output is correct
46	Correct	77 ms	127480 KB	Output is correct

Subtask #4
75.0 / 75.0

#	결과	실행 시간	메모리	Grader output
1	Correct	64 ms	127480 KB	Output is correct
2	Correct	69 ms	127480 KB	Output is correct
3	Correct	73 ms	127480 KB	Output is correct
4	Correct	69 ms	127480 KB	Output is correct
5	Correct	68 ms	127480 KB	Output is correct
6	Correct	62 ms	127480 KB	Output is correct
7	Correct	63 ms	127576 KB	Output is correct
8	Correct	62 ms	127480 KB	Output is correct
9	Correct	63 ms	127508 KB	Output is correct
10	Correct	65 ms	127480 KB	Output is correct
11	Correct	69 ms	127480 KB	Output is correct
12	Correct	65 ms	127480 KB	Output is correct
13	Correct	63 ms	127480 KB	Output is correct
14	Correct	69 ms	127480 KB	Output is correct
15	Correct	65 ms	127480 KB	Output is correct
16	Correct	62 ms	127480 KB	Output is correct
17	Correct	62 ms	127480 KB	Output is correct
18	Correct	63 ms	127480 KB	Output is correct
19	Correct	63 ms	127608 KB	Output is correct
20	Correct	63 ms	127480 KB	Output is correct
21	Correct	63 ms	127480 KB	Output is correct
22	Correct	63 ms	127480 KB	Output is correct
23	Correct	62 ms	127480 KB	Output is correct
24	Correct	64 ms	127480 KB	Output is correct
25	Correct	64 ms	127452 KB	Output is correct
26	Correct	64 ms	127480 KB	Output is correct
27	Correct	65 ms	127480 KB	Output is correct
28	Correct	64 ms	127480 KB	Output is correct
29	Correct	64 ms	127608 KB	Output is correct
30	Correct	63 ms	127480 KB	Output is correct
31	Correct	62 ms	127480 KB	Output is correct
32	Correct	66 ms	127480 KB	Output is correct
33	Correct	62 ms	127480 KB	Output is correct
34	Correct	62 ms	127480 KB	Output is correct
35	Correct	63 ms	127484 KB	Output is correct
36	Correct	87 ms	127480 KB	Output is correct
37	Correct	77 ms	127472 KB	Output is correct
38	Correct	69 ms	127480 KB	Output is correct
39	Correct	76 ms	127480 KB	Output is correct
40	Correct	82 ms	127480 KB	Output is correct
41	Correct	68 ms	127480 KB	Output is correct
42	Correct	64 ms	127480 KB	Output is correct
43	Correct	68 ms	127480 KB	Output is correct
44	Correct	64 ms	127484 KB	Output is correct
45	Correct	69 ms	127480 KB	Output is correct
46	Correct	65 ms	127480 KB	Output is correct
47	Correct	70 ms	127480 KB	Output is correct
48	Correct	65 ms	127520 KB	Output is correct
49	Correct	67 ms	127480 KB	Output is correct
50	Correct	64 ms	127480 KB	Output is correct
51	Correct	69 ms	127480 KB	Output is correct
52	Correct	63 ms	127480 KB	Output is correct
53	Correct	67 ms	127480 KB	Output is correct
54	Correct	64 ms	127480 KB	Output is correct
55	Correct	66 ms	127480 KB	Output is correct
56	Correct	66 ms	127484 KB	Output is correct
57	Correct	66 ms	127480 KB	Output is correct
58	Correct	65 ms	127480 KB	Output is correct
59	Correct	103 ms	127608 KB	Output is correct
60	Correct	68 ms	127480 KB	Output is correct
61	Correct	111 ms	127480 KB	Output is correct
62	Correct	72 ms	127480 KB	Output is correct
63	Correct	104 ms	127480 KB	Output is correct
64	Correct	77 ms	127480 KB	Output is correct
65	Correct	97 ms	127480 KB	Output is correct
66	Correct	92 ms	127512 KB	Output is correct
67	Correct	89 ms	127480 KB	Output is correct
68	Correct	87 ms	127480 KB	Output is correct
69	Correct	97 ms	127480 KB	Output is correct
70	Correct	97 ms	127608 KB	Output is correct
71	Correct	91 ms	127480 KB	Output is correct
72	Correct	102 ms	127608 KB	Output is correct
73	Correct	80 ms	127588 KB	Output is correct
74	Correct	92 ms	127480 KB	Output is correct
75	Correct	88 ms	127480 KB	Output is correct
76	Correct	102 ms	127480 KB	Output is correct
77	Correct	92 ms	127480 KB	Output is correct
78	Correct	89 ms	127608 KB	Output is correct
79	Correct	88 ms	127480 KB	Output is correct
80	Correct	100 ms	127480 KB	Output is correct
81	Correct	86 ms	127480 KB	Output is correct
82	Correct	85 ms	127480 KB	Output is correct
83	Correct	98 ms	127480 KB	Output is correct
84	Correct	84 ms	127480 KB	Output is correct
85	Correct	87 ms	127480 KB	Output is correct
86	Correct	85 ms	127480 KB	Output is correct
87	Correct	94 ms	127736 KB	Output is correct
88	Correct	111 ms	127480 KB	Output is correct
89	Correct	102 ms	127480 KB	Output is correct
90	Correct	72 ms	127420 KB	Output is correct
91	Correct	112 ms	127520 KB	Output is correct
92	Correct	100 ms	127480 KB	Output is correct
93	Correct	81 ms	127504 KB	Output is correct

답안 #257045

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 10.0 / 10.0

Subtask #3 10.0 / 10.0

Subtask #4 75.0 / 75.0

Subtask #1
5.0 / 5.0

Subtask #2
10.0 / 10.0

Subtask #3
10.0 / 10.0

Subtask #4
75.0 / 75.0