#include <bits/stdc++.h>
#define N 205
#define int long long
using namespace std;
int x[2*N],t[2*N];
int dp[2*N][2*N][N][2];
int L;
int go(int a,int b,int dir){
if(dir == 0){
return (x[a] - x[b] + L)%L;
}
return (x[b] - x[a] +L)%L;
}
void solve(){
for(int i=0;i<2*N;i++){
for(int j=0;j<2*N;j++){
for(int c=0;c<N;c++){
for(int d=0;d<2;d++){
dp[i][j][c][d] = 2e18;
}
}
}
}
int n;
cin >> n >> L;
n++;
dp[n+1][n+1][0][0] = 0;
for(int i=2;i<=n;i++){
cin >> x[i];
}
for(int i=2;i<=n;i++){
cin >> t[i];
}
for(int i=n+1;i<=2*n;i++){
x[i] = x[i-n];
t[i] = t[i-n];
}
for(int len=2;len<=n;len++){
for(int l=1;l<=n+1;l++){
int r = l+len-2;
for(int c=0;c<=n;c++){
dp[l-1][r][c + (dp[l][r][c][0] + go(l,l-1,0) <= t[l-1])][0] = min(dp[l-1][r][c + (dp[l][r][c][0] + go(l,l-1,0) <= t[l-1])][0], dp[l][r][c][0] + go(l,l-1,0));
dp[l][r+1][c + (dp[l][r][c][0] + go(l,r+1,1) <= t[r+1])][1] = min(dp[l][r+1][c + (dp[l][r][c][0] + go(l,r+1,1) <= t[r+1])][1], dp[l][r][c][0] + go(l,r+1,1));
dp[l-1][r][c + (dp[l][r][c][1] + go(r,l-1,0) <= t[l-1])][0] = min(dp[l-1][r][c + (dp[l][r][c][1] + go(r,l-1,0) <= t[l-1])][0], dp[l][r][c][1] + go(r,l-1,0));
dp[l][r+1][c + (dp[l][r][c][1] + go(r,r+1,1) <= t[r+1])][1] = min(dp[l][r+1][c + (dp[l][r][c][1] + go(r,r+1,1) <= t[r+1])][1], dp[l][r][c][1] + go(r,r+1,1));
}
}
}
int ans = 0;
for(int i=0;i<2*N;i++){
for(int j=0;j<2*N;j++){
for(int c=0;c<N;c++){
for(int d=0;d<2;d++){
if(dp[i][j][c][d] != 2e18)ans = max(ans,c);
}
}
}
}
cout << ans;
}
int32_t main(){
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
#ifdef Local
freopen("in.txt","r",stdin);
freopen("out.txt","w",stdout);
#endif
int t=1;
//cin>>t;
while(t--){
solve();
}
#ifdef Local
cout<<endl<<fixed<<setprecision(2)<<1000.0 * clock() / CLOCKS_PER_SEC<< " milliseconds ";
#endif
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
391 ms |
539784 KB |
Output is correct |
2 |
Correct |
365 ms |
539784 KB |
Output is correct |
3 |
Correct |
360 ms |
539728 KB |
Output is correct |
4 |
Correct |
366 ms |
539684 KB |
Output is correct |
5 |
Correct |
416 ms |
539748 KB |
Output is correct |
6 |
Correct |
364 ms |
539808 KB |
Output is correct |
7 |
Correct |
363 ms |
539732 KB |
Output is correct |
8 |
Correct |
358 ms |
539720 KB |
Output is correct |
9 |
Correct |
374 ms |
539792 KB |
Output is correct |
10 |
Correct |
354 ms |
539768 KB |
Output is correct |
11 |
Correct |
358 ms |
539800 KB |
Output is correct |
12 |
Correct |
366 ms |
539888 KB |
Output is correct |
13 |
Correct |
371 ms |
539808 KB |
Output is correct |
14 |
Correct |
370 ms |
539728 KB |
Output is correct |
15 |
Correct |
359 ms |
539780 KB |
Output is correct |
16 |
Correct |
358 ms |
539812 KB |
Output is correct |
17 |
Correct |
365 ms |
539688 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
391 ms |
539784 KB |
Output is correct |
2 |
Correct |
365 ms |
539784 KB |
Output is correct |
3 |
Correct |
360 ms |
539728 KB |
Output is correct |
4 |
Correct |
366 ms |
539684 KB |
Output is correct |
5 |
Correct |
416 ms |
539748 KB |
Output is correct |
6 |
Correct |
364 ms |
539808 KB |
Output is correct |
7 |
Correct |
363 ms |
539732 KB |
Output is correct |
8 |
Correct |
358 ms |
539720 KB |
Output is correct |
9 |
Correct |
374 ms |
539792 KB |
Output is correct |
10 |
Correct |
354 ms |
539768 KB |
Output is correct |
11 |
Correct |
358 ms |
539800 KB |
Output is correct |
12 |
Correct |
366 ms |
539888 KB |
Output is correct |
13 |
Correct |
371 ms |
539808 KB |
Output is correct |
14 |
Correct |
370 ms |
539728 KB |
Output is correct |
15 |
Correct |
359 ms |
539780 KB |
Output is correct |
16 |
Correct |
358 ms |
539812 KB |
Output is correct |
17 |
Correct |
365 ms |
539688 KB |
Output is correct |
18 |
Correct |
367 ms |
539796 KB |
Output is correct |
19 |
Correct |
378 ms |
539776 KB |
Output is correct |
20 |
Correct |
360 ms |
539712 KB |
Output is correct |
21 |
Correct |
356 ms |
539712 KB |
Output is correct |
22 |
Correct |
369 ms |
539916 KB |
Output is correct |
23 |
Correct |
359 ms |
539896 KB |
Output is correct |
24 |
Correct |
384 ms |
539768 KB |
Output is correct |
25 |
Correct |
361 ms |
539792 KB |
Output is correct |
26 |
Correct |
353 ms |
539796 KB |
Output is correct |
27 |
Correct |
365 ms |
539696 KB |
Output is correct |
28 |
Correct |
358 ms |
539884 KB |
Output is correct |
29 |
Correct |
362 ms |
539792 KB |
Output is correct |
30 |
Correct |
376 ms |
539796 KB |
Output is correct |
31 |
Correct |
373 ms |
539792 KB |
Output is correct |
32 |
Correct |
357 ms |
539768 KB |
Output is correct |
33 |
Correct |
357 ms |
539716 KB |
Output is correct |
34 |
Correct |
353 ms |
539936 KB |
Output is correct |
35 |
Correct |
359 ms |
539792 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
391 ms |
539784 KB |
Output is correct |
2 |
Correct |
365 ms |
539784 KB |
Output is correct |
3 |
Correct |
360 ms |
539728 KB |
Output is correct |
4 |
Correct |
366 ms |
539684 KB |
Output is correct |
5 |
Correct |
416 ms |
539748 KB |
Output is correct |
6 |
Correct |
364 ms |
539808 KB |
Output is correct |
7 |
Correct |
363 ms |
539732 KB |
Output is correct |
8 |
Correct |
358 ms |
539720 KB |
Output is correct |
9 |
Correct |
374 ms |
539792 KB |
Output is correct |
10 |
Correct |
354 ms |
539768 KB |
Output is correct |
11 |
Correct |
358 ms |
539800 KB |
Output is correct |
12 |
Correct |
366 ms |
539888 KB |
Output is correct |
13 |
Correct |
371 ms |
539808 KB |
Output is correct |
14 |
Correct |
370 ms |
539728 KB |
Output is correct |
15 |
Correct |
359 ms |
539780 KB |
Output is correct |
16 |
Correct |
358 ms |
539812 KB |
Output is correct |
17 |
Correct |
365 ms |
539688 KB |
Output is correct |
18 |
Correct |
500 ms |
539796 KB |
Output is correct |
19 |
Correct |
424 ms |
539796 KB |
Output is correct |
20 |
Correct |
387 ms |
539712 KB |
Output is correct |
21 |
Correct |
415 ms |
539724 KB |
Output is correct |
22 |
Correct |
444 ms |
539916 KB |
Output is correct |
23 |
Correct |
377 ms |
539716 KB |
Output is correct |
24 |
Correct |
378 ms |
539848 KB |
Output is correct |
25 |
Correct |
375 ms |
539752 KB |
Output is correct |
26 |
Correct |
367 ms |
539832 KB |
Output is correct |
27 |
Correct |
372 ms |
539792 KB |
Output is correct |
28 |
Correct |
370 ms |
539780 KB |
Output is correct |
29 |
Correct |
368 ms |
539732 KB |
Output is correct |
30 |
Correct |
367 ms |
539848 KB |
Output is correct |
31 |
Correct |
378 ms |
539716 KB |
Output is correct |
32 |
Correct |
357 ms |
539780 KB |
Output is correct |
33 |
Correct |
380 ms |
539852 KB |
Output is correct |
34 |
Correct |
363 ms |
539680 KB |
Output is correct |
35 |
Correct |
376 ms |
539700 KB |
Output is correct |
36 |
Correct |
358 ms |
539716 KB |
Output is correct |
37 |
Correct |
389 ms |
539844 KB |
Output is correct |
38 |
Correct |
361 ms |
539716 KB |
Output is correct |
39 |
Correct |
378 ms |
539732 KB |
Output is correct |
40 |
Correct |
359 ms |
539716 KB |
Output is correct |
41 |
Correct |
545 ms |
539884 KB |
Output is correct |
42 |
Correct |
451 ms |
539764 KB |
Output is correct |
43 |
Correct |
531 ms |
539732 KB |
Output is correct |
44 |
Correct |
452 ms |
539796 KB |
Output is correct |
45 |
Correct |
537 ms |
539796 KB |
Output is correct |
46 |
Correct |
468 ms |
539696 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
391 ms |
539784 KB |
Output is correct |
2 |
Correct |
365 ms |
539784 KB |
Output is correct |
3 |
Correct |
360 ms |
539728 KB |
Output is correct |
4 |
Correct |
366 ms |
539684 KB |
Output is correct |
5 |
Correct |
416 ms |
539748 KB |
Output is correct |
6 |
Correct |
364 ms |
539808 KB |
Output is correct |
7 |
Correct |
363 ms |
539732 KB |
Output is correct |
8 |
Correct |
358 ms |
539720 KB |
Output is correct |
9 |
Correct |
374 ms |
539792 KB |
Output is correct |
10 |
Correct |
354 ms |
539768 KB |
Output is correct |
11 |
Correct |
358 ms |
539800 KB |
Output is correct |
12 |
Correct |
366 ms |
539888 KB |
Output is correct |
13 |
Correct |
371 ms |
539808 KB |
Output is correct |
14 |
Correct |
370 ms |
539728 KB |
Output is correct |
15 |
Correct |
359 ms |
539780 KB |
Output is correct |
16 |
Correct |
358 ms |
539812 KB |
Output is correct |
17 |
Correct |
365 ms |
539688 KB |
Output is correct |
18 |
Correct |
367 ms |
539796 KB |
Output is correct |
19 |
Correct |
378 ms |
539776 KB |
Output is correct |
20 |
Correct |
360 ms |
539712 KB |
Output is correct |
21 |
Correct |
356 ms |
539712 KB |
Output is correct |
22 |
Correct |
369 ms |
539916 KB |
Output is correct |
23 |
Correct |
359 ms |
539896 KB |
Output is correct |
24 |
Correct |
384 ms |
539768 KB |
Output is correct |
25 |
Correct |
361 ms |
539792 KB |
Output is correct |
26 |
Correct |
353 ms |
539796 KB |
Output is correct |
27 |
Correct |
365 ms |
539696 KB |
Output is correct |
28 |
Correct |
358 ms |
539884 KB |
Output is correct |
29 |
Correct |
362 ms |
539792 KB |
Output is correct |
30 |
Correct |
376 ms |
539796 KB |
Output is correct |
31 |
Correct |
373 ms |
539792 KB |
Output is correct |
32 |
Correct |
357 ms |
539768 KB |
Output is correct |
33 |
Correct |
357 ms |
539716 KB |
Output is correct |
34 |
Correct |
353 ms |
539936 KB |
Output is correct |
35 |
Correct |
359 ms |
539792 KB |
Output is correct |
36 |
Correct |
500 ms |
539796 KB |
Output is correct |
37 |
Correct |
424 ms |
539796 KB |
Output is correct |
38 |
Correct |
387 ms |
539712 KB |
Output is correct |
39 |
Correct |
415 ms |
539724 KB |
Output is correct |
40 |
Correct |
444 ms |
539916 KB |
Output is correct |
41 |
Correct |
377 ms |
539716 KB |
Output is correct |
42 |
Correct |
378 ms |
539848 KB |
Output is correct |
43 |
Correct |
375 ms |
539752 KB |
Output is correct |
44 |
Correct |
367 ms |
539832 KB |
Output is correct |
45 |
Correct |
372 ms |
539792 KB |
Output is correct |
46 |
Correct |
370 ms |
539780 KB |
Output is correct |
47 |
Correct |
368 ms |
539732 KB |
Output is correct |
48 |
Correct |
367 ms |
539848 KB |
Output is correct |
49 |
Correct |
378 ms |
539716 KB |
Output is correct |
50 |
Correct |
357 ms |
539780 KB |
Output is correct |
51 |
Correct |
380 ms |
539852 KB |
Output is correct |
52 |
Correct |
363 ms |
539680 KB |
Output is correct |
53 |
Correct |
376 ms |
539700 KB |
Output is correct |
54 |
Correct |
358 ms |
539716 KB |
Output is correct |
55 |
Correct |
389 ms |
539844 KB |
Output is correct |
56 |
Correct |
361 ms |
539716 KB |
Output is correct |
57 |
Correct |
378 ms |
539732 KB |
Output is correct |
58 |
Correct |
359 ms |
539716 KB |
Output is correct |
59 |
Correct |
545 ms |
539884 KB |
Output is correct |
60 |
Correct |
451 ms |
539764 KB |
Output is correct |
61 |
Correct |
531 ms |
539732 KB |
Output is correct |
62 |
Correct |
452 ms |
539796 KB |
Output is correct |
63 |
Correct |
537 ms |
539796 KB |
Output is correct |
64 |
Correct |
468 ms |
539696 KB |
Output is correct |
65 |
Correct |
507 ms |
539860 KB |
Output is correct |
66 |
Correct |
489 ms |
539772 KB |
Output is correct |
67 |
Correct |
483 ms |
539796 KB |
Output is correct |
68 |
Correct |
472 ms |
539804 KB |
Output is correct |
69 |
Correct |
518 ms |
539844 KB |
Output is correct |
70 |
Correct |
502 ms |
539796 KB |
Output is correct |
71 |
Correct |
493 ms |
539784 KB |
Output is correct |
72 |
Correct |
494 ms |
539860 KB |
Output is correct |
73 |
Correct |
480 ms |
539800 KB |
Output is correct |
74 |
Correct |
468 ms |
539716 KB |
Output is correct |
75 |
Correct |
500 ms |
539924 KB |
Output is correct |
76 |
Correct |
522 ms |
539716 KB |
Output is correct |
77 |
Correct |
532 ms |
539844 KB |
Output is correct |
78 |
Correct |
465 ms |
539848 KB |
Output is correct |
79 |
Correct |
474 ms |
539888 KB |
Output is correct |
80 |
Correct |
519 ms |
539844 KB |
Output is correct |
81 |
Correct |
477 ms |
539796 KB |
Output is correct |
82 |
Correct |
489 ms |
539832 KB |
Output is correct |
83 |
Correct |
541 ms |
539844 KB |
Output is correct |
84 |
Correct |
503 ms |
539844 KB |
Output is correct |
85 |
Correct |
521 ms |
539828 KB |
Output is correct |
86 |
Correct |
512 ms |
539848 KB |
Output is correct |
87 |
Correct |
486 ms |
539756 KB |
Output is correct |
88 |
Correct |
551 ms |
539748 KB |
Output is correct |
89 |
Correct |
544 ms |
539776 KB |
Output is correct |
90 |
Correct |
484 ms |
539720 KB |
Output is correct |
91 |
Correct |
523 ms |
539800 KB |
Output is correct |
92 |
Correct |
521 ms |
539804 KB |
Output is correct |
93 |
Correct |
513 ms |
539844 KB |
Output is correct |