#include<bits/stdc++.h>
using namespace std;
const long long MX = 220;
long long t[MX], x[MX], ans;
long long dp[MX][MX][MX][2];
void update(long long l,long long r,long long k,long long side,long long time)
{
long long zar=((side==0)?l:r);
k+=(t[zar]>=time);
ans=max(ans,k);
dp[l][r][k][side]=(((dp[l][r][k][side]==-1)|(dp[l][r][k][side]>time))?time:dp[l][r][k][side]);
}
int main()
{
cin.tie(0);
ios_base::sync_with_stdio(0);
long long n, rd;
cin>>n>>rd;
for(long long i = 1; i <= n; i++)
cin>>x[i];
for(long long i = 1; i <= n; i++)
cin>>t[i];
memset(dp, -1, sizeof(dp));
update(1, n, 0, 0, x[1]);
update(1, n, 0, 1, rd - x[n]);
for(long long i = 1; i <= n; i++)
{
for(long long j = 1; j <= i; j++)
{
for(long long 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)
{
update(l+1, r, k, 0, dp[l][r][k][0] + x[l+1] - x[l]);
update(l+1, r, k, 1, dp[l][r][k][0] + x[l] + rd - x[r]);
}
if(dp[l][r][k][1] != -1)
{
update(l, r-1, k, 1, dp[l][r][k][1] + (x[r] - x[r-1]));
update(l, r-1, k, 0, dp[l][r][k][1] + (rd - x[r] + x[l]));
}
}
}
}
cout<<ans<<'\n';
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
36 ms |
166996 KB |
Output is correct |
2 |
Correct |
35 ms |
167068 KB |
Output is correct |
3 |
Correct |
37 ms |
167000 KB |
Output is correct |
4 |
Correct |
35 ms |
166996 KB |
Output is correct |
5 |
Correct |
35 ms |
167004 KB |
Output is correct |
6 |
Correct |
37 ms |
166948 KB |
Output is correct |
7 |
Correct |
36 ms |
166992 KB |
Output is correct |
8 |
Correct |
35 ms |
166992 KB |
Output is correct |
9 |
Correct |
35 ms |
166908 KB |
Output is correct |
10 |
Correct |
36 ms |
166996 KB |
Output is correct |
11 |
Correct |
40 ms |
166992 KB |
Output is correct |
12 |
Correct |
38 ms |
167004 KB |
Output is correct |
13 |
Correct |
35 ms |
166912 KB |
Output is correct |
14 |
Correct |
39 ms |
166992 KB |
Output is correct |
15 |
Correct |
35 ms |
167000 KB |
Output is correct |
16 |
Correct |
35 ms |
167124 KB |
Output is correct |
17 |
Correct |
36 ms |
167004 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
36 ms |
166996 KB |
Output is correct |
2 |
Correct |
35 ms |
167068 KB |
Output is correct |
3 |
Correct |
37 ms |
167000 KB |
Output is correct |
4 |
Correct |
35 ms |
166996 KB |
Output is correct |
5 |
Correct |
35 ms |
167004 KB |
Output is correct |
6 |
Correct |
37 ms |
166948 KB |
Output is correct |
7 |
Correct |
36 ms |
166992 KB |
Output is correct |
8 |
Correct |
35 ms |
166992 KB |
Output is correct |
9 |
Correct |
35 ms |
166908 KB |
Output is correct |
10 |
Correct |
36 ms |
166996 KB |
Output is correct |
11 |
Correct |
40 ms |
166992 KB |
Output is correct |
12 |
Correct |
38 ms |
167004 KB |
Output is correct |
13 |
Correct |
35 ms |
166912 KB |
Output is correct |
14 |
Correct |
39 ms |
166992 KB |
Output is correct |
15 |
Correct |
35 ms |
167000 KB |
Output is correct |
16 |
Correct |
35 ms |
167124 KB |
Output is correct |
17 |
Correct |
36 ms |
167004 KB |
Output is correct |
18 |
Correct |
36 ms |
167000 KB |
Output is correct |
19 |
Correct |
35 ms |
166996 KB |
Output is correct |
20 |
Correct |
38 ms |
166992 KB |
Output is correct |
21 |
Correct |
35 ms |
167000 KB |
Output is correct |
22 |
Correct |
42 ms |
166992 KB |
Output is correct |
23 |
Correct |
36 ms |
167004 KB |
Output is correct |
24 |
Correct |
41 ms |
166992 KB |
Output is correct |
25 |
Correct |
40 ms |
166968 KB |
Output is correct |
26 |
Correct |
37 ms |
166992 KB |
Output is correct |
27 |
Correct |
36 ms |
166996 KB |
Output is correct |
28 |
Correct |
36 ms |
167004 KB |
Output is correct |
29 |
Correct |
36 ms |
167000 KB |
Output is correct |
30 |
Correct |
36 ms |
166992 KB |
Output is correct |
31 |
Correct |
36 ms |
167000 KB |
Output is correct |
32 |
Correct |
36 ms |
167004 KB |
Output is correct |
33 |
Correct |
37 ms |
167088 KB |
Output is correct |
34 |
Correct |
36 ms |
166916 KB |
Output is correct |
35 |
Correct |
36 ms |
167004 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
36 ms |
166996 KB |
Output is correct |
2 |
Correct |
35 ms |
167068 KB |
Output is correct |
3 |
Correct |
37 ms |
167000 KB |
Output is correct |
4 |
Correct |
35 ms |
166996 KB |
Output is correct |
5 |
Correct |
35 ms |
167004 KB |
Output is correct |
6 |
Correct |
37 ms |
166948 KB |
Output is correct |
7 |
Correct |
36 ms |
166992 KB |
Output is correct |
8 |
Correct |
35 ms |
166992 KB |
Output is correct |
9 |
Correct |
35 ms |
166908 KB |
Output is correct |
10 |
Correct |
36 ms |
166996 KB |
Output is correct |
11 |
Correct |
40 ms |
166992 KB |
Output is correct |
12 |
Correct |
38 ms |
167004 KB |
Output is correct |
13 |
Correct |
35 ms |
166912 KB |
Output is correct |
14 |
Correct |
39 ms |
166992 KB |
Output is correct |
15 |
Correct |
35 ms |
167000 KB |
Output is correct |
16 |
Correct |
35 ms |
167124 KB |
Output is correct |
17 |
Correct |
36 ms |
167004 KB |
Output is correct |
18 |
Correct |
61 ms |
166996 KB |
Output is correct |
19 |
Correct |
48 ms |
166972 KB |
Output is correct |
20 |
Correct |
42 ms |
166996 KB |
Output is correct |
21 |
Correct |
47 ms |
166920 KB |
Output is correct |
22 |
Correct |
51 ms |
166992 KB |
Output is correct |
23 |
Correct |
44 ms |
167252 KB |
Output is correct |
24 |
Correct |
38 ms |
167096 KB |
Output is correct |
25 |
Correct |
40 ms |
167080 KB |
Output is correct |
26 |
Correct |
37 ms |
166996 KB |
Output is correct |
27 |
Correct |
41 ms |
167104 KB |
Output is correct |
28 |
Correct |
38 ms |
166992 KB |
Output is correct |
29 |
Correct |
42 ms |
167144 KB |
Output is correct |
30 |
Correct |
43 ms |
167104 KB |
Output is correct |
31 |
Correct |
43 ms |
167076 KB |
Output is correct |
32 |
Correct |
39 ms |
167340 KB |
Output is correct |
33 |
Correct |
40 ms |
166996 KB |
Output is correct |
34 |
Correct |
37 ms |
167004 KB |
Output is correct |
35 |
Correct |
43 ms |
167256 KB |
Output is correct |
36 |
Correct |
38 ms |
167028 KB |
Output is correct |
37 |
Correct |
39 ms |
166996 KB |
Output is correct |
38 |
Correct |
39 ms |
167004 KB |
Output is correct |
39 |
Correct |
43 ms |
166992 KB |
Output is correct |
40 |
Correct |
42 ms |
167040 KB |
Output is correct |
41 |
Correct |
76 ms |
167136 KB |
Output is correct |
42 |
Correct |
44 ms |
166996 KB |
Output is correct |
43 |
Correct |
68 ms |
166996 KB |
Output is correct |
44 |
Correct |
47 ms |
166996 KB |
Output is correct |
45 |
Correct |
70 ms |
167028 KB |
Output is correct |
46 |
Correct |
44 ms |
166992 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
36 ms |
166996 KB |
Output is correct |
2 |
Correct |
35 ms |
167068 KB |
Output is correct |
3 |
Correct |
37 ms |
167000 KB |
Output is correct |
4 |
Correct |
35 ms |
166996 KB |
Output is correct |
5 |
Correct |
35 ms |
167004 KB |
Output is correct |
6 |
Correct |
37 ms |
166948 KB |
Output is correct |
7 |
Correct |
36 ms |
166992 KB |
Output is correct |
8 |
Correct |
35 ms |
166992 KB |
Output is correct |
9 |
Correct |
35 ms |
166908 KB |
Output is correct |
10 |
Correct |
36 ms |
166996 KB |
Output is correct |
11 |
Correct |
40 ms |
166992 KB |
Output is correct |
12 |
Correct |
38 ms |
167004 KB |
Output is correct |
13 |
Correct |
35 ms |
166912 KB |
Output is correct |
14 |
Correct |
39 ms |
166992 KB |
Output is correct |
15 |
Correct |
35 ms |
167000 KB |
Output is correct |
16 |
Correct |
35 ms |
167124 KB |
Output is correct |
17 |
Correct |
36 ms |
167004 KB |
Output is correct |
18 |
Correct |
36 ms |
167000 KB |
Output is correct |
19 |
Correct |
35 ms |
166996 KB |
Output is correct |
20 |
Correct |
38 ms |
166992 KB |
Output is correct |
21 |
Correct |
35 ms |
167000 KB |
Output is correct |
22 |
Correct |
42 ms |
166992 KB |
Output is correct |
23 |
Correct |
36 ms |
167004 KB |
Output is correct |
24 |
Correct |
41 ms |
166992 KB |
Output is correct |
25 |
Correct |
40 ms |
166968 KB |
Output is correct |
26 |
Correct |
37 ms |
166992 KB |
Output is correct |
27 |
Correct |
36 ms |
166996 KB |
Output is correct |
28 |
Correct |
36 ms |
167004 KB |
Output is correct |
29 |
Correct |
36 ms |
167000 KB |
Output is correct |
30 |
Correct |
36 ms |
166992 KB |
Output is correct |
31 |
Correct |
36 ms |
167000 KB |
Output is correct |
32 |
Correct |
36 ms |
167004 KB |
Output is correct |
33 |
Correct |
37 ms |
167088 KB |
Output is correct |
34 |
Correct |
36 ms |
166916 KB |
Output is correct |
35 |
Correct |
36 ms |
167004 KB |
Output is correct |
36 |
Correct |
61 ms |
166996 KB |
Output is correct |
37 |
Correct |
48 ms |
166972 KB |
Output is correct |
38 |
Correct |
42 ms |
166996 KB |
Output is correct |
39 |
Correct |
47 ms |
166920 KB |
Output is correct |
40 |
Correct |
51 ms |
166992 KB |
Output is correct |
41 |
Correct |
44 ms |
167252 KB |
Output is correct |
42 |
Correct |
38 ms |
167096 KB |
Output is correct |
43 |
Correct |
40 ms |
167080 KB |
Output is correct |
44 |
Correct |
37 ms |
166996 KB |
Output is correct |
45 |
Correct |
41 ms |
167104 KB |
Output is correct |
46 |
Correct |
38 ms |
166992 KB |
Output is correct |
47 |
Correct |
42 ms |
167144 KB |
Output is correct |
48 |
Correct |
43 ms |
167104 KB |
Output is correct |
49 |
Correct |
43 ms |
167076 KB |
Output is correct |
50 |
Correct |
39 ms |
167340 KB |
Output is correct |
51 |
Correct |
40 ms |
166996 KB |
Output is correct |
52 |
Correct |
37 ms |
167004 KB |
Output is correct |
53 |
Correct |
43 ms |
167256 KB |
Output is correct |
54 |
Correct |
38 ms |
167028 KB |
Output is correct |
55 |
Correct |
39 ms |
166996 KB |
Output is correct |
56 |
Correct |
39 ms |
167004 KB |
Output is correct |
57 |
Correct |
43 ms |
166992 KB |
Output is correct |
58 |
Correct |
42 ms |
167040 KB |
Output is correct |
59 |
Correct |
76 ms |
167136 KB |
Output is correct |
60 |
Correct |
44 ms |
166996 KB |
Output is correct |
61 |
Correct |
68 ms |
166996 KB |
Output is correct |
62 |
Correct |
47 ms |
166996 KB |
Output is correct |
63 |
Correct |
70 ms |
167028 KB |
Output is correct |
64 |
Correct |
44 ms |
166992 KB |
Output is correct |
65 |
Correct |
63 ms |
166992 KB |
Output is correct |
66 |
Correct |
59 ms |
166992 KB |
Output is correct |
67 |
Correct |
58 ms |
166992 KB |
Output is correct |
68 |
Correct |
60 ms |
166992 KB |
Output is correct |
69 |
Correct |
65 ms |
167136 KB |
Output is correct |
70 |
Correct |
75 ms |
167120 KB |
Output is correct |
71 |
Correct |
57 ms |
166928 KB |
Output is correct |
72 |
Correct |
66 ms |
167096 KB |
Output is correct |
73 |
Correct |
53 ms |
167248 KB |
Output is correct |
74 |
Correct |
62 ms |
166996 KB |
Output is correct |
75 |
Correct |
57 ms |
166992 KB |
Output is correct |
76 |
Correct |
68 ms |
166996 KB |
Output is correct |
77 |
Correct |
64 ms |
167004 KB |
Output is correct |
78 |
Correct |
58 ms |
167004 KB |
Output is correct |
79 |
Correct |
58 ms |
167144 KB |
Output is correct |
80 |
Correct |
71 ms |
167140 KB |
Output is correct |
81 |
Correct |
55 ms |
167016 KB |
Output is correct |
82 |
Correct |
55 ms |
167144 KB |
Output is correct |
83 |
Correct |
67 ms |
167136 KB |
Output is correct |
84 |
Correct |
55 ms |
166996 KB |
Output is correct |
85 |
Correct |
55 ms |
166996 KB |
Output is correct |
86 |
Correct |
58 ms |
167140 KB |
Output is correct |
87 |
Correct |
60 ms |
166948 KB |
Output is correct |
88 |
Correct |
75 ms |
166996 KB |
Output is correct |
89 |
Correct |
70 ms |
166992 KB |
Output is correct |
90 |
Correct |
49 ms |
166992 KB |
Output is correct |
91 |
Correct |
80 ms |
167148 KB |
Output is correct |
92 |
Correct |
74 ms |
166996 KB |
Output is correct |
93 |
Correct |
51 ms |
167072 KB |
Output is correct |