#include<bits/stdc++.h>
#define int long long
using namespace std;
signed main(){
ios::sync_with_stdio(false);
cin.tie(0);
int n, laenge; cin >> n >> laenge;
vector<int> wo(n+2, 0), zeit(n+2, 0);
for(int i=1; i<=n; i++) cin >> wo[i];
for(int i=1; i<=n; i++) cin >> zeit[i];
wo[n+1] = laenge;
zeit[n+1] = 0;
vector<vector<vector<vector<int>>>> dp(n+2, vector<vector<vector<int>>>(n+2, vector<vector<int>>(n+2, vector<int>(2, 1e18))));
dp[n+1][0][0][1] = 0;
dp[n+1][0][0][0] = 0;
int res = 0;
for(int c=0; c<n; c++){//Anz Marken
for(int l=n+1; l>0; l--){//linkes Ende
for(int r=0; r<l; r++){//rechtes Ende
if(dp[l][r][c][0]!=1e18){//sind am linken Ende
//ans rechte Ende laufen
if(r+1!=l){
int dist = wo[r+1]+laenge-wo[l];
if(dp[l][r][c][0]+dist<=zeit[r+1]){
dp[l][r+1][c+1][1] = min(dp[l][r][c][0] + dist, dp[l][r+1][c+1][1]);
res = max(res, c+1);
}else dp[l][r+1][c][1] = min(dp[l][r+1][c][1], dp[l][r][c][0] + dist);
}
//ans neue linke Ende laufen
if(l-1!=r){
int dist = wo[l]-wo[l-1];
if(dp[l][r][c][0]+dist<=zeit[l-1]){
dp[l-1][r][c+1][0] = min(dp[l-1][r][c+1][0], dp[l][r][c][0] + dist);
res = max(res, c+1);
}else dp[l-1][r][c][0] = min(dp[l-1][r][c][0], dp[l][r][c][0] + dist);
}
}
if(dp[l][r][c][1]!=1e18){//sind am rechten Ende
//ans linke Ende laufen
int dist = wo[r]+laenge-wo[l-1];
if(l-1!=r){
if(dp[l][r][c][1]+dist<=zeit[l-1]){
dp[l-1][r][c+1][0] = min(dp[l-1][r][c+1][0], dp[l][r][c][1] + dist);
res = max(res, c+1);
}else dp[l-1][r][c][0] = min(dp[l-1][r][c][0], dp[l][r][c][1] + dist);
}
//ans neue rechte Ende laufen
dist = wo[r+1]-wo[r];
if(r+1!=l){
if(dp[l][r][c][1]+dist<=zeit[r+1]){
dp[l][r+1][c+1][1] = min(dp[l][r+1][c+1][1], dp[l][r][c][1] + dist);
res = max(res, c+1);
}else dp[l][r+1][c][1] = min(dp[l][r+1][c][1], dp[l][r][c][1] + dist);
}
}
}
}
}
cout << res;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
468 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
468 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
468 KB |
Output is correct |
13 |
Correct |
1 ms |
468 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
468 KB |
Output is correct |
17 |
Correct |
1 ms |
468 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
468 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
468 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
468 KB |
Output is correct |
13 |
Correct |
1 ms |
468 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
468 KB |
Output is correct |
17 |
Correct |
1 ms |
468 KB |
Output is correct |
18 |
Correct |
1 ms |
468 KB |
Output is correct |
19 |
Correct |
1 ms |
356 KB |
Output is correct |
20 |
Correct |
1 ms |
468 KB |
Output is correct |
21 |
Correct |
1 ms |
468 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
596 KB |
Output is correct |
24 |
Correct |
1 ms |
464 KB |
Output is correct |
25 |
Correct |
1 ms |
468 KB |
Output is correct |
26 |
Correct |
1 ms |
468 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 |
596 KB |
Output is correct |
30 |
Correct |
1 ms |
596 KB |
Output is correct |
31 |
Correct |
1 ms |
468 KB |
Output is correct |
32 |
Correct |
1 ms |
468 KB |
Output is correct |
33 |
Correct |
1 ms |
596 KB |
Output is correct |
34 |
Correct |
1 ms |
596 KB |
Output is correct |
35 |
Correct |
1 ms |
596 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
468 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
468 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
468 KB |
Output is correct |
13 |
Correct |
1 ms |
468 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
468 KB |
Output is correct |
17 |
Correct |
1 ms |
468 KB |
Output is correct |
18 |
Correct |
443 ms |
328064 KB |
Output is correct |
19 |
Correct |
224 ms |
155736 KB |
Output is correct |
20 |
Correct |
81 ms |
61036 KB |
Output is correct |
21 |
Correct |
186 ms |
142832 KB |
Output is correct |
22 |
Correct |
329 ms |
210728 KB |
Output is correct |
23 |
Correct |
69 ms |
48064 KB |
Output is correct |
24 |
Correct |
49 ms |
33352 KB |
Output is correct |
25 |
Correct |
68 ms |
46540 KB |
Output is correct |
26 |
Correct |
19 ms |
11220 KB |
Output is correct |
27 |
Correct |
71 ms |
49568 KB |
Output is correct |
28 |
Correct |
42 ms |
30008 KB |
Output is correct |
29 |
Correct |
63 ms |
51020 KB |
Output is correct |
30 |
Correct |
47 ms |
35788 KB |
Output is correct |
31 |
Correct |
66 ms |
46688 KB |
Output is correct |
32 |
Correct |
24 ms |
17876 KB |
Output is correct |
33 |
Correct |
66 ms |
46528 KB |
Output is correct |
34 |
Correct |
12 ms |
10196 KB |
Output is correct |
35 |
Correct |
69 ms |
45132 KB |
Output is correct |
36 |
Correct |
20 ms |
15064 KB |
Output is correct |
37 |
Correct |
70 ms |
49580 KB |
Output is correct |
38 |
Correct |
34 ms |
20300 KB |
Output is correct |
39 |
Correct |
68 ms |
52788 KB |
Output is correct |
40 |
Correct |
29 ms |
23892 KB |
Output is correct |
41 |
Correct |
681 ms |
448696 KB |
Output is correct |
42 |
Correct |
380 ms |
248780 KB |
Output is correct |
43 |
Correct |
729 ms |
448780 KB |
Output is correct |
44 |
Correct |
341 ms |
244604 KB |
Output is correct |
45 |
Correct |
1022 ms |
448780 KB |
Output is correct |
46 |
Correct |
306 ms |
248780 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
468 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
468 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
468 KB |
Output is correct |
13 |
Correct |
1 ms |
468 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
468 KB |
Output is correct |
17 |
Correct |
1 ms |
468 KB |
Output is correct |
18 |
Correct |
1 ms |
468 KB |
Output is correct |
19 |
Correct |
1 ms |
356 KB |
Output is correct |
20 |
Correct |
1 ms |
468 KB |
Output is correct |
21 |
Correct |
1 ms |
468 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
596 KB |
Output is correct |
24 |
Correct |
1 ms |
464 KB |
Output is correct |
25 |
Correct |
1 ms |
468 KB |
Output is correct |
26 |
Correct |
1 ms |
468 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 |
596 KB |
Output is correct |
30 |
Correct |
1 ms |
596 KB |
Output is correct |
31 |
Correct |
1 ms |
468 KB |
Output is correct |
32 |
Correct |
1 ms |
468 KB |
Output is correct |
33 |
Correct |
1 ms |
596 KB |
Output is correct |
34 |
Correct |
1 ms |
596 KB |
Output is correct |
35 |
Correct |
1 ms |
596 KB |
Output is correct |
36 |
Correct |
443 ms |
328064 KB |
Output is correct |
37 |
Correct |
224 ms |
155736 KB |
Output is correct |
38 |
Correct |
81 ms |
61036 KB |
Output is correct |
39 |
Correct |
186 ms |
142832 KB |
Output is correct |
40 |
Correct |
329 ms |
210728 KB |
Output is correct |
41 |
Correct |
69 ms |
48064 KB |
Output is correct |
42 |
Correct |
49 ms |
33352 KB |
Output is correct |
43 |
Correct |
68 ms |
46540 KB |
Output is correct |
44 |
Correct |
19 ms |
11220 KB |
Output is correct |
45 |
Correct |
71 ms |
49568 KB |
Output is correct |
46 |
Correct |
42 ms |
30008 KB |
Output is correct |
47 |
Correct |
63 ms |
51020 KB |
Output is correct |
48 |
Correct |
47 ms |
35788 KB |
Output is correct |
49 |
Correct |
66 ms |
46688 KB |
Output is correct |
50 |
Correct |
24 ms |
17876 KB |
Output is correct |
51 |
Correct |
66 ms |
46528 KB |
Output is correct |
52 |
Correct |
12 ms |
10196 KB |
Output is correct |
53 |
Correct |
69 ms |
45132 KB |
Output is correct |
54 |
Correct |
20 ms |
15064 KB |
Output is correct |
55 |
Correct |
70 ms |
49580 KB |
Output is correct |
56 |
Correct |
34 ms |
20300 KB |
Output is correct |
57 |
Correct |
68 ms |
52788 KB |
Output is correct |
58 |
Correct |
29 ms |
23892 KB |
Output is correct |
59 |
Correct |
681 ms |
448696 KB |
Output is correct |
60 |
Correct |
380 ms |
248780 KB |
Output is correct |
61 |
Correct |
729 ms |
448780 KB |
Output is correct |
62 |
Correct |
341 ms |
244604 KB |
Output is correct |
63 |
Correct |
1022 ms |
448780 KB |
Output is correct |
64 |
Correct |
306 ms |
248780 KB |
Output is correct |
65 |
Correct |
515 ms |
385224 KB |
Output is correct |
66 |
Correct |
461 ms |
339016 KB |
Output is correct |
67 |
Correct |
453 ms |
317352 KB |
Output is correct |
68 |
Correct |
424 ms |
281960 KB |
Output is correct |
69 |
Correct |
503 ms |
379628 KB |
Output is correct |
70 |
Correct |
536 ms |
356164 KB |
Output is correct |
71 |
Correct |
502 ms |
361600 KB |
Output is correct |
72 |
Correct |
580 ms |
367792 KB |
Output is correct |
73 |
Correct |
414 ms |
328072 KB |
Output is correct |
74 |
Correct |
416 ms |
296648 KB |
Output is correct |
75 |
Correct |
496 ms |
344852 KB |
Output is correct |
76 |
Correct |
593 ms |
422556 KB |
Output is correct |
77 |
Correct |
593 ms |
422600 KB |
Output is correct |
78 |
Correct |
423 ms |
286604 KB |
Output is correct |
79 |
Correct |
458 ms |
302024 KB |
Output is correct |
80 |
Correct |
690 ms |
409880 KB |
Output is correct |
81 |
Correct |
438 ms |
306872 KB |
Output is correct |
82 |
Correct |
418 ms |
333900 KB |
Output is correct |
83 |
Correct |
661 ms |
448776 KB |
Output is correct |
84 |
Correct |
517 ms |
356168 KB |
Output is correct |
85 |
Correct |
641 ms |
403908 KB |
Output is correct |
86 |
Correct |
539 ms |
391680 KB |
Output is correct |
87 |
Correct |
461 ms |
344864 KB |
Output is correct |
88 |
Correct |
680 ms |
455800 KB |
Output is correct |
89 |
Correct |
631 ms |
455800 KB |
Output is correct |
90 |
Correct |
432 ms |
350216 KB |
Output is correct |
91 |
Correct |
641 ms |
455704 KB |
Output is correct |
92 |
Correct |
647 ms |
455804 KB |
Output is correct |
93 |
Correct |
566 ms |
442368 KB |
Output is correct |