#include<bits/stdc++.h>
using namespace std;
const long long maxn=210,inf=1000000000000;
pair<long long,long long>dp[maxn][maxn][maxn];
long long n,allx[maxn],allt[maxn],L;
long long res=0;
long long fas(long long a,long long b){
if (b <= a)
return (a - b);
return L - (b- a);
}
void upddp(long long l,long long r){
//cout<<l<<" "<<r<<" "<<dp[l][r][0].first<<" "<<dp[l][r][0].second<<"\n";
long long ll=(l-1)+n,rr=r+1;
ll%=n;
rr%=n;
for(long long i=0;i<n;i++){
if(dp[l][r][i].first!=inf){
//cout<<l<<" "<<r<<" "<<i<<" "<<dp[l][r][i].first<<" "<<dp[l][r][i].second<<'\n';
dp[ll][r][i].first=min(dp[ll][r][i].first,dp[l][r][i].first+fas(allx[l],allx[ll]));
dp[ll][r][i].second=min(dp[ll][r][i].second,dp[ll][r][i].first+fas(allx[r],allx[ll]));
if(fas(allx[l],allx[ll])+dp[l][r][i].first<=allt[ll]){
dp[ll][r][i+1].first=min(dp[ll][r][i+1].first,dp[l][r][i].first+fas(allx[l],allx[ll]));
dp[ll][r][i+1].second=min(dp[ll][r][i+1].second,dp[ll][r][i].first+fas(allx[r],allx[ll]));
res=max(res,i+1);
}
dp[l][rr][i].second=min(dp[l][rr][i].second,dp[l][r][i].second+fas(allx[rr],allx[r]));
dp[l][rr][i].first=min(dp[l][rr][i].first,dp[l][rr][i].second+fas(allx[rr],allx[l]));
if(fas(allx[rr],allx[r])+dp[l][r][i].second<=allt[rr]){
dp[l][rr][i+1].second=min(dp[l][rr][i+1].second,dp[l][r][i].second+fas(allx[rr],allx[r]));
dp[l][rr][i+1].first=min(dp[l][rr][i+1].first,dp[l][rr][i+1].second+fas(allx[rr],allx[l]));
res=max(res,i+1);
}
}
}
}
int main(){
ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
for(long long i=0;i<maxn;i++){
for(long long j=0;j<maxn;j++){
for(long long h=0;h<maxn;h++){
dp[i][j][h]=make_pair(inf,inf);
}
}
}
cin>>n>>L;
for(long long i=0;i<n;i++){
cin>>allx[i];
}
for(long long i=0;i<n;i++){
cin>>allt[i];
}
if(n==1){
if(min(allx[0],fas(0,allx[0]))<=allt[0]){
cout<<1<<endl;
return 0;
}
cout<<0<<endl;
return 0;
}
if(allx[0]<=allt[0]){
dp[0][0][0]=dp[0][0][1]=make_pair(allx[0],allx[0]);
res=1;
}
else{
dp[0][0][0]=make_pair(allx[0],allx[0]);
}
if(fas(0,allx[n-1])<=allt[n-1]){
dp[n-1][n-1][0]=dp[n-1][n-1][1]=make_pair(fas(0,allx[n-1]),fas(0,allx[n-1]));
res=1;
}
else{
dp[n-1][n-1][0]=make_pair(fas(0,allx[n-1]),fas(0,allx[n-1]));
}
for(long long i=0;i<n-1;i++){
for(long long l=n-1;l>=0;l--){
upddp(l,(l+i)%n);
}
}
cout<<res<<"\n";
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
26 ms |
145240 KB |
Output is correct |
2 |
Correct |
20 ms |
145296 KB |
Output is correct |
3 |
Correct |
20 ms |
145244 KB |
Output is correct |
4 |
Correct |
21 ms |
145236 KB |
Output is correct |
5 |
Correct |
22 ms |
145408 KB |
Output is correct |
6 |
Correct |
21 ms |
145488 KB |
Output is correct |
7 |
Correct |
21 ms |
145232 KB |
Output is correct |
8 |
Correct |
21 ms |
145244 KB |
Output is correct |
9 |
Correct |
21 ms |
145272 KB |
Output is correct |
10 |
Correct |
20 ms |
145240 KB |
Output is correct |
11 |
Correct |
20 ms |
145244 KB |
Output is correct |
12 |
Correct |
22 ms |
145244 KB |
Output is correct |
13 |
Correct |
23 ms |
145244 KB |
Output is correct |
14 |
Correct |
23 ms |
145252 KB |
Output is correct |
15 |
Correct |
21 ms |
145244 KB |
Output is correct |
16 |
Correct |
22 ms |
145240 KB |
Output is correct |
17 |
Correct |
30 ms |
145236 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
26 ms |
145240 KB |
Output is correct |
2 |
Correct |
20 ms |
145296 KB |
Output is correct |
3 |
Correct |
20 ms |
145244 KB |
Output is correct |
4 |
Correct |
21 ms |
145236 KB |
Output is correct |
5 |
Correct |
22 ms |
145408 KB |
Output is correct |
6 |
Correct |
21 ms |
145488 KB |
Output is correct |
7 |
Correct |
21 ms |
145232 KB |
Output is correct |
8 |
Correct |
21 ms |
145244 KB |
Output is correct |
9 |
Correct |
21 ms |
145272 KB |
Output is correct |
10 |
Correct |
20 ms |
145240 KB |
Output is correct |
11 |
Correct |
20 ms |
145244 KB |
Output is correct |
12 |
Correct |
22 ms |
145244 KB |
Output is correct |
13 |
Correct |
23 ms |
145244 KB |
Output is correct |
14 |
Correct |
23 ms |
145252 KB |
Output is correct |
15 |
Correct |
21 ms |
145244 KB |
Output is correct |
16 |
Correct |
22 ms |
145240 KB |
Output is correct |
17 |
Correct |
30 ms |
145236 KB |
Output is correct |
18 |
Correct |
20 ms |
145236 KB |
Output is correct |
19 |
Correct |
20 ms |
145236 KB |
Output is correct |
20 |
Correct |
22 ms |
145236 KB |
Output is correct |
21 |
Correct |
20 ms |
145232 KB |
Output is correct |
22 |
Correct |
21 ms |
145244 KB |
Output is correct |
23 |
Correct |
20 ms |
145368 KB |
Output is correct |
24 |
Correct |
21 ms |
145232 KB |
Output is correct |
25 |
Correct |
21 ms |
145244 KB |
Output is correct |
26 |
Correct |
21 ms |
145244 KB |
Output is correct |
27 |
Correct |
21 ms |
145340 KB |
Output is correct |
28 |
Correct |
20 ms |
145244 KB |
Output is correct |
29 |
Correct |
21 ms |
145284 KB |
Output is correct |
30 |
Correct |
20 ms |
145240 KB |
Output is correct |
31 |
Correct |
23 ms |
145316 KB |
Output is correct |
32 |
Correct |
20 ms |
145240 KB |
Output is correct |
33 |
Correct |
20 ms |
145228 KB |
Output is correct |
34 |
Correct |
21 ms |
145292 KB |
Output is correct |
35 |
Correct |
21 ms |
145332 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
26 ms |
145240 KB |
Output is correct |
2 |
Correct |
20 ms |
145296 KB |
Output is correct |
3 |
Correct |
20 ms |
145244 KB |
Output is correct |
4 |
Correct |
21 ms |
145236 KB |
Output is correct |
5 |
Correct |
22 ms |
145408 KB |
Output is correct |
6 |
Correct |
21 ms |
145488 KB |
Output is correct |
7 |
Correct |
21 ms |
145232 KB |
Output is correct |
8 |
Correct |
21 ms |
145244 KB |
Output is correct |
9 |
Correct |
21 ms |
145272 KB |
Output is correct |
10 |
Correct |
20 ms |
145240 KB |
Output is correct |
11 |
Correct |
20 ms |
145244 KB |
Output is correct |
12 |
Correct |
22 ms |
145244 KB |
Output is correct |
13 |
Correct |
23 ms |
145244 KB |
Output is correct |
14 |
Correct |
23 ms |
145252 KB |
Output is correct |
15 |
Correct |
21 ms |
145244 KB |
Output is correct |
16 |
Correct |
22 ms |
145240 KB |
Output is correct |
17 |
Correct |
30 ms |
145236 KB |
Output is correct |
18 |
Correct |
44 ms |
145520 KB |
Output is correct |
19 |
Correct |
33 ms |
145236 KB |
Output is correct |
20 |
Correct |
25 ms |
145236 KB |
Output is correct |
21 |
Correct |
30 ms |
145424 KB |
Output is correct |
22 |
Correct |
34 ms |
145208 KB |
Output is correct |
23 |
Correct |
26 ms |
145208 KB |
Output is correct |
24 |
Correct |
23 ms |
145244 KB |
Output is correct |
25 |
Correct |
25 ms |
145244 KB |
Output is correct |
26 |
Correct |
22 ms |
145288 KB |
Output is correct |
27 |
Correct |
25 ms |
145320 KB |
Output is correct |
28 |
Correct |
23 ms |
145424 KB |
Output is correct |
29 |
Correct |
27 ms |
145236 KB |
Output is correct |
30 |
Correct |
23 ms |
145240 KB |
Output is correct |
31 |
Correct |
24 ms |
145244 KB |
Output is correct |
32 |
Correct |
22 ms |
145232 KB |
Output is correct |
33 |
Correct |
25 ms |
145232 KB |
Output is correct |
34 |
Correct |
21 ms |
145244 KB |
Output is correct |
35 |
Correct |
24 ms |
145244 KB |
Output is correct |
36 |
Correct |
22 ms |
145208 KB |
Output is correct |
37 |
Correct |
25 ms |
145240 KB |
Output is correct |
38 |
Correct |
23 ms |
145404 KB |
Output is correct |
39 |
Correct |
24 ms |
145244 KB |
Output is correct |
40 |
Correct |
22 ms |
145240 KB |
Output is correct |
41 |
Correct |
49 ms |
145244 KB |
Output is correct |
42 |
Correct |
34 ms |
145244 KB |
Output is correct |
43 |
Correct |
52 ms |
145280 KB |
Output is correct |
44 |
Correct |
31 ms |
145236 KB |
Output is correct |
45 |
Correct |
48 ms |
145244 KB |
Output is correct |
46 |
Correct |
31 ms |
145244 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
26 ms |
145240 KB |
Output is correct |
2 |
Correct |
20 ms |
145296 KB |
Output is correct |
3 |
Correct |
20 ms |
145244 KB |
Output is correct |
4 |
Correct |
21 ms |
145236 KB |
Output is correct |
5 |
Correct |
22 ms |
145408 KB |
Output is correct |
6 |
Correct |
21 ms |
145488 KB |
Output is correct |
7 |
Correct |
21 ms |
145232 KB |
Output is correct |
8 |
Correct |
21 ms |
145244 KB |
Output is correct |
9 |
Correct |
21 ms |
145272 KB |
Output is correct |
10 |
Correct |
20 ms |
145240 KB |
Output is correct |
11 |
Correct |
20 ms |
145244 KB |
Output is correct |
12 |
Correct |
22 ms |
145244 KB |
Output is correct |
13 |
Correct |
23 ms |
145244 KB |
Output is correct |
14 |
Correct |
23 ms |
145252 KB |
Output is correct |
15 |
Correct |
21 ms |
145244 KB |
Output is correct |
16 |
Correct |
22 ms |
145240 KB |
Output is correct |
17 |
Correct |
30 ms |
145236 KB |
Output is correct |
18 |
Correct |
20 ms |
145236 KB |
Output is correct |
19 |
Correct |
20 ms |
145236 KB |
Output is correct |
20 |
Correct |
22 ms |
145236 KB |
Output is correct |
21 |
Correct |
20 ms |
145232 KB |
Output is correct |
22 |
Correct |
21 ms |
145244 KB |
Output is correct |
23 |
Correct |
20 ms |
145368 KB |
Output is correct |
24 |
Correct |
21 ms |
145232 KB |
Output is correct |
25 |
Correct |
21 ms |
145244 KB |
Output is correct |
26 |
Correct |
21 ms |
145244 KB |
Output is correct |
27 |
Correct |
21 ms |
145340 KB |
Output is correct |
28 |
Correct |
20 ms |
145244 KB |
Output is correct |
29 |
Correct |
21 ms |
145284 KB |
Output is correct |
30 |
Correct |
20 ms |
145240 KB |
Output is correct |
31 |
Correct |
23 ms |
145316 KB |
Output is correct |
32 |
Correct |
20 ms |
145240 KB |
Output is correct |
33 |
Correct |
20 ms |
145228 KB |
Output is correct |
34 |
Correct |
21 ms |
145292 KB |
Output is correct |
35 |
Correct |
21 ms |
145332 KB |
Output is correct |
36 |
Correct |
44 ms |
145520 KB |
Output is correct |
37 |
Correct |
33 ms |
145236 KB |
Output is correct |
38 |
Correct |
25 ms |
145236 KB |
Output is correct |
39 |
Correct |
30 ms |
145424 KB |
Output is correct |
40 |
Correct |
34 ms |
145208 KB |
Output is correct |
41 |
Correct |
26 ms |
145208 KB |
Output is correct |
42 |
Correct |
23 ms |
145244 KB |
Output is correct |
43 |
Correct |
25 ms |
145244 KB |
Output is correct |
44 |
Correct |
22 ms |
145288 KB |
Output is correct |
45 |
Correct |
25 ms |
145320 KB |
Output is correct |
46 |
Correct |
23 ms |
145424 KB |
Output is correct |
47 |
Correct |
27 ms |
145236 KB |
Output is correct |
48 |
Correct |
23 ms |
145240 KB |
Output is correct |
49 |
Correct |
24 ms |
145244 KB |
Output is correct |
50 |
Correct |
22 ms |
145232 KB |
Output is correct |
51 |
Correct |
25 ms |
145232 KB |
Output is correct |
52 |
Correct |
21 ms |
145244 KB |
Output is correct |
53 |
Correct |
24 ms |
145244 KB |
Output is correct |
54 |
Correct |
22 ms |
145208 KB |
Output is correct |
55 |
Correct |
25 ms |
145240 KB |
Output is correct |
56 |
Correct |
23 ms |
145404 KB |
Output is correct |
57 |
Correct |
24 ms |
145244 KB |
Output is correct |
58 |
Correct |
22 ms |
145240 KB |
Output is correct |
59 |
Correct |
49 ms |
145244 KB |
Output is correct |
60 |
Correct |
34 ms |
145244 KB |
Output is correct |
61 |
Correct |
52 ms |
145280 KB |
Output is correct |
62 |
Correct |
31 ms |
145236 KB |
Output is correct |
63 |
Correct |
48 ms |
145244 KB |
Output is correct |
64 |
Correct |
31 ms |
145244 KB |
Output is correct |
65 |
Correct |
42 ms |
145244 KB |
Output is correct |
66 |
Correct |
42 ms |
145240 KB |
Output is correct |
67 |
Correct |
40 ms |
145292 KB |
Output is correct |
68 |
Correct |
37 ms |
145244 KB |
Output is correct |
69 |
Correct |
42 ms |
145232 KB |
Output is correct |
70 |
Correct |
49 ms |
145232 KB |
Output is correct |
71 |
Correct |
41 ms |
145496 KB |
Output is correct |
72 |
Correct |
46 ms |
145424 KB |
Output is correct |
73 |
Correct |
37 ms |
145236 KB |
Output is correct |
74 |
Correct |
41 ms |
145244 KB |
Output is correct |
75 |
Correct |
39 ms |
145256 KB |
Output is correct |
76 |
Correct |
47 ms |
145244 KB |
Output is correct |
77 |
Correct |
45 ms |
145244 KB |
Output is correct |
78 |
Incorrect |
40 ms |
145232 KB |
Output isn't correct |
79 |
Halted |
0 ms |
0 KB |
- |