#include<bits/stdc++.h>
#define ll long long
#define ff first
#define ss second
#define pb push_back
using namespace std;
const int N = 1e6 + 69;
int n,k,l,r,ans;
ll dro,x,L;
ll A[N],T[N];
ll dp[202][202][202][2];
ll dist(ll x,ll y){
return min(abs(x-y),L-abs(x-y));
}
int main(){
cin>>n>>L;
for(int i=1;i<=n;i++){
cin>>A[i];
}
A[n+1] = L;
for(int i=1;i<=n;i++){
cin>>T[i];
}
for(int i=0;i<=n;i++){
for(int j=0;j<=n;j++){
for(int k=0;k<=n;k++){
for(int t=0;t<=1;t++)
dp[i][j][k][t] = 1e18;
}
}
}
dp[0][0][0][1] = dp[0][0][0][0] = 0;
for(int i=0;i<=n;i++){
for(int j=0;j<=n-i;j++){
for(int k=0;k<=i+j;k++){
x = dp[i][j][k][0];
if(x<1e18){
ans = max(k,ans);
}
dro = x + dist(A[i+1], A[i]);
dp[i+1][j][k+(dro<=T[i+1])][0] = min(dp[i+1][j][k+(dro<=T[i+1])][0],dro);
dro = x + dist(A[i], A[n-j]);
dp[i][j+1][k+(dro<=T[n-j])][1] = min(dp[i][j+1][k+(dro<=T[n-j])][1],dro);
x = dp[i][j][k][1];
if(x<1e18){
ans = max(k,ans);
}
dro = x + dist( A[i+1], A[n+1-j]);
dp[i+1][j][k+(dro<=T[i+1])][0] = min(dp[i+1][j][k+(dro<=T[i+1])][0],dro);
dro = x + dist(A[n+1-j],A[n-j]);
dp[i][j+1][k+(dro<=T[n-j])][1] = min(dp[i][j+1][k+(dro<=T[n-j])][1],dro);
}
}
}
cout<<ans<<endl;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
504 KB |
Output is correct |
2 |
Correct |
5 ms |
504 KB |
Output is correct |
3 |
Correct |
5 ms |
632 KB |
Output is correct |
4 |
Correct |
5 ms |
504 KB |
Output is correct |
5 |
Correct |
5 ms |
504 KB |
Output is correct |
6 |
Correct |
5 ms |
888 KB |
Output is correct |
7 |
Correct |
5 ms |
632 KB |
Output is correct |
8 |
Correct |
5 ms |
760 KB |
Output is correct |
9 |
Correct |
5 ms |
888 KB |
Output is correct |
10 |
Correct |
5 ms |
380 KB |
Output is correct |
11 |
Correct |
5 ms |
376 KB |
Output is correct |
12 |
Correct |
5 ms |
888 KB |
Output is correct |
13 |
Correct |
5 ms |
892 KB |
Output is correct |
14 |
Correct |
5 ms |
632 KB |
Output is correct |
15 |
Correct |
5 ms |
632 KB |
Output is correct |
16 |
Correct |
5 ms |
888 KB |
Output is correct |
17 |
Correct |
5 ms |
888 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
504 KB |
Output is correct |
2 |
Correct |
5 ms |
504 KB |
Output is correct |
3 |
Correct |
5 ms |
632 KB |
Output is correct |
4 |
Correct |
5 ms |
504 KB |
Output is correct |
5 |
Correct |
5 ms |
504 KB |
Output is correct |
6 |
Correct |
5 ms |
888 KB |
Output is correct |
7 |
Correct |
5 ms |
632 KB |
Output is correct |
8 |
Correct |
5 ms |
760 KB |
Output is correct |
9 |
Correct |
5 ms |
888 KB |
Output is correct |
10 |
Correct |
5 ms |
380 KB |
Output is correct |
11 |
Correct |
5 ms |
376 KB |
Output is correct |
12 |
Correct |
5 ms |
888 KB |
Output is correct |
13 |
Correct |
5 ms |
892 KB |
Output is correct |
14 |
Correct |
5 ms |
632 KB |
Output is correct |
15 |
Correct |
5 ms |
632 KB |
Output is correct |
16 |
Correct |
5 ms |
888 KB |
Output is correct |
17 |
Correct |
5 ms |
888 KB |
Output is correct |
18 |
Correct |
5 ms |
1144 KB |
Output is correct |
19 |
Correct |
7 ms |
760 KB |
Output is correct |
20 |
Correct |
5 ms |
888 KB |
Output is correct |
21 |
Correct |
5 ms |
1016 KB |
Output is correct |
22 |
Correct |
5 ms |
760 KB |
Output is correct |
23 |
Correct |
5 ms |
1144 KB |
Output is correct |
24 |
Correct |
6 ms |
1016 KB |
Output is correct |
25 |
Correct |
5 ms |
1144 KB |
Output is correct |
26 |
Correct |
5 ms |
1016 KB |
Output is correct |
27 |
Correct |
5 ms |
632 KB |
Output is correct |
28 |
Correct |
5 ms |
632 KB |
Output is correct |
29 |
Correct |
5 ms |
1144 KB |
Output is correct |
30 |
Correct |
5 ms |
1144 KB |
Output is correct |
31 |
Correct |
5 ms |
1144 KB |
Output is correct |
32 |
Correct |
5 ms |
1020 KB |
Output is correct |
33 |
Correct |
6 ms |
1272 KB |
Output is correct |
34 |
Correct |
5 ms |
1272 KB |
Output is correct |
35 |
Correct |
5 ms |
1272 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
504 KB |
Output is correct |
2 |
Correct |
5 ms |
504 KB |
Output is correct |
3 |
Correct |
5 ms |
632 KB |
Output is correct |
4 |
Correct |
5 ms |
504 KB |
Output is correct |
5 |
Correct |
5 ms |
504 KB |
Output is correct |
6 |
Correct |
5 ms |
888 KB |
Output is correct |
7 |
Correct |
5 ms |
632 KB |
Output is correct |
8 |
Correct |
5 ms |
760 KB |
Output is correct |
9 |
Correct |
5 ms |
888 KB |
Output is correct |
10 |
Correct |
5 ms |
380 KB |
Output is correct |
11 |
Correct |
5 ms |
376 KB |
Output is correct |
12 |
Correct |
5 ms |
888 KB |
Output is correct |
13 |
Correct |
5 ms |
892 KB |
Output is correct |
14 |
Correct |
5 ms |
632 KB |
Output is correct |
15 |
Correct |
5 ms |
632 KB |
Output is correct |
16 |
Correct |
5 ms |
888 KB |
Output is correct |
17 |
Correct |
5 ms |
888 KB |
Output is correct |
18 |
Correct |
94 ms |
103416 KB |
Output is correct |
19 |
Correct |
51 ms |
62840 KB |
Output is correct |
20 |
Correct |
28 ms |
33528 KB |
Output is correct |
21 |
Correct |
53 ms |
59256 KB |
Output is correct |
22 |
Correct |
69 ms |
77048 KB |
Output is correct |
23 |
Correct |
23 ms |
28536 KB |
Output is correct |
24 |
Correct |
19 ms |
22392 KB |
Output is correct |
25 |
Correct |
23 ms |
28024 KB |
Output is correct |
26 |
Correct |
11 ms |
10744 KB |
Output is correct |
27 |
Correct |
24 ms |
29176 KB |
Output is correct |
28 |
Correct |
18 ms |
20856 KB |
Output is correct |
29 |
Correct |
30 ms |
29736 KB |
Output is correct |
30 |
Correct |
19 ms |
23416 KB |
Output is correct |
31 |
Correct |
23 ms |
28024 KB |
Output is correct |
32 |
Correct |
14 ms |
14712 KB |
Output is correct |
33 |
Correct |
24 ms |
27896 KB |
Output is correct |
34 |
Correct |
11 ms |
10104 KB |
Output is correct |
35 |
Correct |
23 ms |
27384 KB |
Output is correct |
36 |
Correct |
12 ms |
13048 KB |
Output is correct |
37 |
Correct |
25 ms |
29176 KB |
Output is correct |
38 |
Correct |
15 ms |
15996 KB |
Output is correct |
39 |
Correct |
25 ms |
30328 KB |
Output is correct |
40 |
Correct |
16 ms |
17912 KB |
Output is correct |
41 |
Correct |
109 ms |
127608 KB |
Output is correct |
42 |
Correct |
69 ms |
86008 KB |
Output is correct |
43 |
Correct |
105 ms |
127608 KB |
Output is correct |
44 |
Correct |
71 ms |
84984 KB |
Output is correct |
45 |
Correct |
106 ms |
127608 KB |
Output is correct |
46 |
Correct |
71 ms |
86008 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
504 KB |
Output is correct |
2 |
Correct |
5 ms |
504 KB |
Output is correct |
3 |
Correct |
5 ms |
632 KB |
Output is correct |
4 |
Correct |
5 ms |
504 KB |
Output is correct |
5 |
Correct |
5 ms |
504 KB |
Output is correct |
6 |
Correct |
5 ms |
888 KB |
Output is correct |
7 |
Correct |
5 ms |
632 KB |
Output is correct |
8 |
Correct |
5 ms |
760 KB |
Output is correct |
9 |
Correct |
5 ms |
888 KB |
Output is correct |
10 |
Correct |
5 ms |
380 KB |
Output is correct |
11 |
Correct |
5 ms |
376 KB |
Output is correct |
12 |
Correct |
5 ms |
888 KB |
Output is correct |
13 |
Correct |
5 ms |
892 KB |
Output is correct |
14 |
Correct |
5 ms |
632 KB |
Output is correct |
15 |
Correct |
5 ms |
632 KB |
Output is correct |
16 |
Correct |
5 ms |
888 KB |
Output is correct |
17 |
Correct |
5 ms |
888 KB |
Output is correct |
18 |
Correct |
5 ms |
1144 KB |
Output is correct |
19 |
Correct |
7 ms |
760 KB |
Output is correct |
20 |
Correct |
5 ms |
888 KB |
Output is correct |
21 |
Correct |
5 ms |
1016 KB |
Output is correct |
22 |
Correct |
5 ms |
760 KB |
Output is correct |
23 |
Correct |
5 ms |
1144 KB |
Output is correct |
24 |
Correct |
6 ms |
1016 KB |
Output is correct |
25 |
Correct |
5 ms |
1144 KB |
Output is correct |
26 |
Correct |
5 ms |
1016 KB |
Output is correct |
27 |
Correct |
5 ms |
632 KB |
Output is correct |
28 |
Correct |
5 ms |
632 KB |
Output is correct |
29 |
Correct |
5 ms |
1144 KB |
Output is correct |
30 |
Correct |
5 ms |
1144 KB |
Output is correct |
31 |
Correct |
5 ms |
1144 KB |
Output is correct |
32 |
Correct |
5 ms |
1020 KB |
Output is correct |
33 |
Correct |
6 ms |
1272 KB |
Output is correct |
34 |
Correct |
5 ms |
1272 KB |
Output is correct |
35 |
Correct |
5 ms |
1272 KB |
Output is correct |
36 |
Correct |
94 ms |
103416 KB |
Output is correct |
37 |
Correct |
51 ms |
62840 KB |
Output is correct |
38 |
Correct |
28 ms |
33528 KB |
Output is correct |
39 |
Correct |
53 ms |
59256 KB |
Output is correct |
40 |
Correct |
69 ms |
77048 KB |
Output is correct |
41 |
Correct |
23 ms |
28536 KB |
Output is correct |
42 |
Correct |
19 ms |
22392 KB |
Output is correct |
43 |
Correct |
23 ms |
28024 KB |
Output is correct |
44 |
Correct |
11 ms |
10744 KB |
Output is correct |
45 |
Correct |
24 ms |
29176 KB |
Output is correct |
46 |
Correct |
18 ms |
20856 KB |
Output is correct |
47 |
Correct |
30 ms |
29736 KB |
Output is correct |
48 |
Correct |
19 ms |
23416 KB |
Output is correct |
49 |
Correct |
23 ms |
28024 KB |
Output is correct |
50 |
Correct |
14 ms |
14712 KB |
Output is correct |
51 |
Correct |
24 ms |
27896 KB |
Output is correct |
52 |
Correct |
11 ms |
10104 KB |
Output is correct |
53 |
Correct |
23 ms |
27384 KB |
Output is correct |
54 |
Correct |
12 ms |
13048 KB |
Output is correct |
55 |
Correct |
25 ms |
29176 KB |
Output is correct |
56 |
Correct |
15 ms |
15996 KB |
Output is correct |
57 |
Correct |
25 ms |
30328 KB |
Output is correct |
58 |
Correct |
16 ms |
17912 KB |
Output is correct |
59 |
Correct |
109 ms |
127608 KB |
Output is correct |
60 |
Correct |
69 ms |
86008 KB |
Output is correct |
61 |
Correct |
105 ms |
127608 KB |
Output is correct |
62 |
Correct |
71 ms |
84984 KB |
Output is correct |
63 |
Correct |
106 ms |
127608 KB |
Output is correct |
64 |
Correct |
71 ms |
86008 KB |
Output is correct |
65 |
Correct |
95 ms |
115192 KB |
Output is correct |
66 |
Correct |
88 ms |
105848 KB |
Output is correct |
67 |
Correct |
84 ms |
101240 KB |
Output is correct |
68 |
Correct |
75 ms |
93432 KB |
Output is correct |
69 |
Correct |
94 ms |
114040 KB |
Output is correct |
70 |
Correct |
90 ms |
109304 KB |
Output is correct |
71 |
Correct |
92 ms |
110456 KB |
Output is correct |
72 |
Correct |
96 ms |
111608 KB |
Output is correct |
73 |
Correct |
84 ms |
103672 KB |
Output is correct |
74 |
Correct |
81 ms |
96760 KB |
Output is correct |
75 |
Correct |
87 ms |
107000 KB |
Output is correct |
76 |
Correct |
102 ms |
122616 KB |
Output is correct |
77 |
Correct |
100 ms |
122616 KB |
Output is correct |
78 |
Correct |
78 ms |
94584 KB |
Output is correct |
79 |
Correct |
81 ms |
97784 KB |
Output is correct |
80 |
Correct |
100 ms |
120184 KB |
Output is correct |
81 |
Correct |
80 ms |
98920 KB |
Output is correct |
82 |
Correct |
86 ms |
104696 KB |
Output is correct |
83 |
Correct |
112 ms |
127680 KB |
Output is correct |
84 |
Correct |
106 ms |
109304 KB |
Output is correct |
85 |
Correct |
104 ms |
118904 KB |
Output is correct |
86 |
Correct |
105 ms |
116472 KB |
Output is correct |
87 |
Correct |
90 ms |
107000 KB |
Output is correct |
88 |
Correct |
111 ms |
128760 KB |
Output is correct |
89 |
Correct |
109 ms |
128760 KB |
Output is correct |
90 |
Correct |
92 ms |
108152 KB |
Output is correct |
91 |
Correct |
111 ms |
128760 KB |
Output is correct |
92 |
Correct |
119 ms |
128892 KB |
Output is correct |
93 |
Correct |
108 ms |
126424 KB |
Output is correct |