#include <bits/stdc++.h>
#define int long long
#define ff first
#define ss second
#define pb push_back
#define all(x) x.begin(),x.end()
using namespace std;
const int N=205;
int dp[N][N][N][2],a[N],b[N];
signed main(){
ios_base::sync_with_stdio();
cin.tie(0);cout.tie(0);
int n,L;
cin>>n>>L;
for(int i=1;i<=n;i++)cin>>a[i];
for(int i=1;i<=n;i++)cin>>b[i];
for(int i=0;i<=n+1;i++){
for(int j=0;j<=n+1;j++){
for(int k=0;k<=n;k++){
dp[i][j][k][0]=1e18;
dp[i][j][k][1]=1e18;
}
}
}
a[n+1]=L;
dp[0][n+1][0][0]=0;
dp[0][n+1][0][1]=0;
for(int l=0;l<=n;l++){
for(int r=n+1;r>l;r--){
for(int k=0;k<=n;k++){
int x=dp[l][r][k][0]+a[l+1]-a[l];
if(x<=b[l+1])dp[l+1][r][k+1][0]=min(dp[l+1][r][k+1][0],x);
else dp[l+1][r][k][0]=min(dp[l+1][r][k][0],x);
x=dp[l][r][k][1]+L-(a[r]-a[l+1]);
if(x<=b[l+1])dp[l+1][r][k+1][0]=min(dp[l+1][r][k+1][0],x);
else dp[l+1][r][k][0]=min(dp[l+1][r][k][0],x);
x=dp[l][r][k][1]+a[r]-a[r-1];
if(x<=b[r-1])dp[l][r-1][k+1][1]=min(dp[l][r-1][k+1][1],x);
else dp[l][r-1][k][1]=min(dp[l][r-1][k][1],x);
x=dp[l][r][k][0]+L-(a[r-1]-a[l]);
if(x<=b[r-1])dp[l][r-1][k+1][1]=min(dp[l][r-1][k+1][1],x);
else dp[l][r-1][k][1]=min(dp[l][r-1][k][1],x);
}
}
}
int ans=0;
for(int l=0;l<=n;l++){
for(int r=n+1;r>l;r--){
for(int k=0;k<=n;k++){
if(dp[l][r][k][0]!=1e18)ans=max(ans,k);
if(dp[l][r][k][1]!=1e18)ans=max(ans,k);
}
}
}
cout<<ans<<"\n";
}
/*
*/
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
4444 KB |
Output is correct |
2 |
Correct |
1 ms |
4540 KB |
Output is correct |
3 |
Correct |
1 ms |
8540 KB |
Output is correct |
4 |
Correct |
1 ms |
6492 KB |
Output is correct |
5 |
Correct |
1 ms |
6492 KB |
Output is correct |
6 |
Correct |
2 ms |
10900 KB |
Output is correct |
7 |
Correct |
1 ms |
6492 KB |
Output is correct |
8 |
Correct |
1 ms |
8632 KB |
Output is correct |
9 |
Correct |
2 ms |
10588 KB |
Output is correct |
10 |
Correct |
1 ms |
2396 KB |
Output is correct |
11 |
Correct |
1 ms |
2392 KB |
Output is correct |
12 |
Correct |
1 ms |
10584 KB |
Output is correct |
13 |
Correct |
2 ms |
10588 KB |
Output is correct |
14 |
Correct |
1 ms |
6492 KB |
Output is correct |
15 |
Correct |
1 ms |
6488 KB |
Output is correct |
16 |
Correct |
1 ms |
10588 KB |
Output is correct |
17 |
Correct |
2 ms |
10588 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
4444 KB |
Output is correct |
2 |
Correct |
1 ms |
4540 KB |
Output is correct |
3 |
Correct |
1 ms |
8540 KB |
Output is correct |
4 |
Correct |
1 ms |
6492 KB |
Output is correct |
5 |
Correct |
1 ms |
6492 KB |
Output is correct |
6 |
Correct |
2 ms |
10900 KB |
Output is correct |
7 |
Correct |
1 ms |
6492 KB |
Output is correct |
8 |
Correct |
1 ms |
8632 KB |
Output is correct |
9 |
Correct |
2 ms |
10588 KB |
Output is correct |
10 |
Correct |
1 ms |
2396 KB |
Output is correct |
11 |
Correct |
1 ms |
2392 KB |
Output is correct |
12 |
Correct |
1 ms |
10584 KB |
Output is correct |
13 |
Correct |
2 ms |
10588 KB |
Output is correct |
14 |
Correct |
1 ms |
6492 KB |
Output is correct |
15 |
Correct |
1 ms |
6488 KB |
Output is correct |
16 |
Correct |
1 ms |
10588 KB |
Output is correct |
17 |
Correct |
2 ms |
10588 KB |
Output is correct |
18 |
Correct |
2 ms |
10588 KB |
Output is correct |
19 |
Correct |
1 ms |
8540 KB |
Output is correct |
20 |
Correct |
2 ms |
10584 KB |
Output is correct |
21 |
Correct |
2 ms |
10588 KB |
Output is correct |
22 |
Correct |
1 ms |
8540 KB |
Output is correct |
23 |
Correct |
2 ms |
12636 KB |
Output is correct |
24 |
Correct |
1 ms |
10584 KB |
Output is correct |
25 |
Correct |
2 ms |
10588 KB |
Output is correct |
26 |
Correct |
2 ms |
10688 KB |
Output is correct |
27 |
Correct |
1 ms |
6488 KB |
Output is correct |
28 |
Correct |
1 ms |
8536 KB |
Output is correct |
29 |
Correct |
2 ms |
12636 KB |
Output is correct |
30 |
Correct |
2 ms |
12636 KB |
Output is correct |
31 |
Correct |
2 ms |
10588 KB |
Output is correct |
32 |
Correct |
2 ms |
10588 KB |
Output is correct |
33 |
Correct |
2 ms |
12636 KB |
Output is correct |
34 |
Correct |
2 ms |
12636 KB |
Output is correct |
35 |
Correct |
2 ms |
12632 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
4444 KB |
Output is correct |
2 |
Correct |
1 ms |
4540 KB |
Output is correct |
3 |
Correct |
1 ms |
8540 KB |
Output is correct |
4 |
Correct |
1 ms |
6492 KB |
Output is correct |
5 |
Correct |
1 ms |
6492 KB |
Output is correct |
6 |
Correct |
2 ms |
10900 KB |
Output is correct |
7 |
Correct |
1 ms |
6492 KB |
Output is correct |
8 |
Correct |
1 ms |
8632 KB |
Output is correct |
9 |
Correct |
2 ms |
10588 KB |
Output is correct |
10 |
Correct |
1 ms |
2396 KB |
Output is correct |
11 |
Correct |
1 ms |
2392 KB |
Output is correct |
12 |
Correct |
1 ms |
10584 KB |
Output is correct |
13 |
Correct |
2 ms |
10588 KB |
Output is correct |
14 |
Correct |
1 ms |
6492 KB |
Output is correct |
15 |
Correct |
1 ms |
6488 KB |
Output is correct |
16 |
Correct |
1 ms |
10588 KB |
Output is correct |
17 |
Correct |
2 ms |
10588 KB |
Output is correct |
18 |
Correct |
84 ms |
119480 KB |
Output is correct |
19 |
Correct |
26 ms |
94808 KB |
Output is correct |
20 |
Correct |
14 ms |
68188 KB |
Output is correct |
21 |
Correct |
25 ms |
90848 KB |
Output is correct |
22 |
Correct |
31 ms |
103212 KB |
Output is correct |
23 |
Correct |
12 ms |
64092 KB |
Output is correct |
24 |
Correct |
10 ms |
55900 KB |
Output is correct |
25 |
Correct |
12 ms |
62116 KB |
Output is correct |
26 |
Correct |
6 ms |
39516 KB |
Output is correct |
27 |
Correct |
12 ms |
64088 KB |
Output is correct |
28 |
Correct |
10 ms |
53852 KB |
Output is correct |
29 |
Correct |
13 ms |
64092 KB |
Output is correct |
30 |
Correct |
10 ms |
57948 KB |
Output is correct |
31 |
Correct |
14 ms |
62188 KB |
Output is correct |
32 |
Correct |
8 ms |
45660 KB |
Output is correct |
33 |
Correct |
12 ms |
62044 KB |
Output is correct |
34 |
Correct |
5 ms |
37468 KB |
Output is correct |
35 |
Correct |
12 ms |
62044 KB |
Output is correct |
36 |
Correct |
7 ms |
43612 KB |
Output is correct |
37 |
Correct |
12 ms |
64228 KB |
Output is correct |
38 |
Correct |
7 ms |
47708 KB |
Output is correct |
39 |
Correct |
13 ms |
66268 KB |
Output is correct |
40 |
Correct |
9 ms |
49752 KB |
Output is correct |
41 |
Correct |
58 ms |
132540 KB |
Output is correct |
42 |
Correct |
34 ms |
109380 KB |
Output is correct |
43 |
Correct |
59 ms |
132408 KB |
Output is correct |
44 |
Correct |
35 ms |
109144 KB |
Output is correct |
45 |
Correct |
55 ms |
132588 KB |
Output is correct |
46 |
Correct |
36 ms |
109144 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
4444 KB |
Output is correct |
2 |
Correct |
1 ms |
4540 KB |
Output is correct |
3 |
Correct |
1 ms |
8540 KB |
Output is correct |
4 |
Correct |
1 ms |
6492 KB |
Output is correct |
5 |
Correct |
1 ms |
6492 KB |
Output is correct |
6 |
Correct |
2 ms |
10900 KB |
Output is correct |
7 |
Correct |
1 ms |
6492 KB |
Output is correct |
8 |
Correct |
1 ms |
8632 KB |
Output is correct |
9 |
Correct |
2 ms |
10588 KB |
Output is correct |
10 |
Correct |
1 ms |
2396 KB |
Output is correct |
11 |
Correct |
1 ms |
2392 KB |
Output is correct |
12 |
Correct |
1 ms |
10584 KB |
Output is correct |
13 |
Correct |
2 ms |
10588 KB |
Output is correct |
14 |
Correct |
1 ms |
6492 KB |
Output is correct |
15 |
Correct |
1 ms |
6488 KB |
Output is correct |
16 |
Correct |
1 ms |
10588 KB |
Output is correct |
17 |
Correct |
2 ms |
10588 KB |
Output is correct |
18 |
Correct |
2 ms |
10588 KB |
Output is correct |
19 |
Correct |
1 ms |
8540 KB |
Output is correct |
20 |
Correct |
2 ms |
10584 KB |
Output is correct |
21 |
Correct |
2 ms |
10588 KB |
Output is correct |
22 |
Correct |
1 ms |
8540 KB |
Output is correct |
23 |
Correct |
2 ms |
12636 KB |
Output is correct |
24 |
Correct |
1 ms |
10584 KB |
Output is correct |
25 |
Correct |
2 ms |
10588 KB |
Output is correct |
26 |
Correct |
2 ms |
10688 KB |
Output is correct |
27 |
Correct |
1 ms |
6488 KB |
Output is correct |
28 |
Correct |
1 ms |
8536 KB |
Output is correct |
29 |
Correct |
2 ms |
12636 KB |
Output is correct |
30 |
Correct |
2 ms |
12636 KB |
Output is correct |
31 |
Correct |
2 ms |
10588 KB |
Output is correct |
32 |
Correct |
2 ms |
10588 KB |
Output is correct |
33 |
Correct |
2 ms |
12636 KB |
Output is correct |
34 |
Correct |
2 ms |
12636 KB |
Output is correct |
35 |
Correct |
2 ms |
12632 KB |
Output is correct |
36 |
Correct |
84 ms |
119480 KB |
Output is correct |
37 |
Correct |
26 ms |
94808 KB |
Output is correct |
38 |
Correct |
14 ms |
68188 KB |
Output is correct |
39 |
Correct |
25 ms |
90848 KB |
Output is correct |
40 |
Correct |
31 ms |
103212 KB |
Output is correct |
41 |
Correct |
12 ms |
64092 KB |
Output is correct |
42 |
Correct |
10 ms |
55900 KB |
Output is correct |
43 |
Correct |
12 ms |
62116 KB |
Output is correct |
44 |
Correct |
6 ms |
39516 KB |
Output is correct |
45 |
Correct |
12 ms |
64088 KB |
Output is correct |
46 |
Correct |
10 ms |
53852 KB |
Output is correct |
47 |
Correct |
13 ms |
64092 KB |
Output is correct |
48 |
Correct |
10 ms |
57948 KB |
Output is correct |
49 |
Correct |
14 ms |
62188 KB |
Output is correct |
50 |
Correct |
8 ms |
45660 KB |
Output is correct |
51 |
Correct |
12 ms |
62044 KB |
Output is correct |
52 |
Correct |
5 ms |
37468 KB |
Output is correct |
53 |
Correct |
12 ms |
62044 KB |
Output is correct |
54 |
Correct |
7 ms |
43612 KB |
Output is correct |
55 |
Correct |
12 ms |
64228 KB |
Output is correct |
56 |
Correct |
7 ms |
47708 KB |
Output is correct |
57 |
Correct |
13 ms |
66268 KB |
Output is correct |
58 |
Correct |
9 ms |
49752 KB |
Output is correct |
59 |
Correct |
58 ms |
132540 KB |
Output is correct |
60 |
Correct |
34 ms |
109380 KB |
Output is correct |
61 |
Correct |
59 ms |
132408 KB |
Output is correct |
62 |
Correct |
35 ms |
109144 KB |
Output is correct |
63 |
Correct |
55 ms |
132588 KB |
Output is correct |
64 |
Correct |
36 ms |
109144 KB |
Output is correct |
65 |
Correct |
48 ms |
127836 KB |
Output is correct |
66 |
Correct |
47 ms |
121436 KB |
Output is correct |
67 |
Correct |
45 ms |
119388 KB |
Output is correct |
68 |
Correct |
40 ms |
115528 KB |
Output is correct |
69 |
Correct |
47 ms |
125788 KB |
Output is correct |
70 |
Correct |
47 ms |
123736 KB |
Output is correct |
71 |
Correct |
46 ms |
123736 KB |
Output is correct |
72 |
Correct |
48 ms |
125788 KB |
Output is correct |
73 |
Correct |
43 ms |
119388 KB |
Output is correct |
74 |
Correct |
44 ms |
115476 KB |
Output is correct |
75 |
Correct |
44 ms |
121436 KB |
Output is correct |
76 |
Correct |
52 ms |
129872 KB |
Output is correct |
77 |
Correct |
54 ms |
129872 KB |
Output is correct |
78 |
Correct |
40 ms |
115436 KB |
Output is correct |
79 |
Correct |
40 ms |
117336 KB |
Output is correct |
80 |
Correct |
52 ms |
128348 KB |
Output is correct |
81 |
Correct |
41 ms |
117328 KB |
Output is correct |
82 |
Correct |
48 ms |
121624 KB |
Output is correct |
83 |
Correct |
61 ms |
132436 KB |
Output is correct |
84 |
Correct |
45 ms |
123736 KB |
Output is correct |
85 |
Correct |
50 ms |
128076 KB |
Output is correct |
86 |
Correct |
47 ms |
127832 KB |
Output is correct |
87 |
Correct |
43 ms |
121436 KB |
Output is correct |
88 |
Correct |
64 ms |
133360 KB |
Output is correct |
89 |
Correct |
56 ms |
133200 KB |
Output is correct |
90 |
Correct |
44 ms |
123500 KB |
Output is correct |
91 |
Correct |
57 ms |
133204 KB |
Output is correct |
92 |
Correct |
55 ms |
133212 KB |
Output is correct |
93 |
Correct |
57 ms |
131672 KB |
Output is correct |