#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
#define AquA cin.tie(0);ios_base::sync_with_stdio(0);
#define fs first
#define sc second
#define p_q priority_queue
//#define int long long
using namespace std;
typedef long long ll;
const ll inf=2e16;
ll dp[205][205][205][2];
int main(){
AquA;
int n;
ll l;
cin >> n >> l;
vector<ll> v(n+3),rv(n+3),t(n+3),rt(n+3);
t[0]=rt[0]=4e9;
rv[0]=l;
v[0]=0;
for(int i=1;i<=n;i++){
cin >> v[i];
rv[n-i+1]=v[i];
}
for(int i=1;i<=n;i++){
cin >> t[i];
rt[n-i+1]=t[i];
}
for(int i=0;i<205;i++){
for(int j=0;j<205;j++){
for(int k=0;k<205;k++){
dp[i][j][k][0]=dp[i][j][k][1]=inf;
}
}
}
dp[0][0][0][0]=dp[0][0][0][1]=0;
int maxx=0;
for(int len=0;len<=n;len++){
for(int i=0;i<=len;i++){
int j=len-i;
for(int k=0;k<=len;k++){
ll z=dp[i][j][k][0];
if(z!=inf){
maxx=max(maxx,k);
}
if(z+v[i+1]-v[i]<=t[i+1]){
dp[i+1][j][k+1][0]=min(dp[i+1][j][k+1][0],z+v[i+1]-v[i]);
}
else{
dp[i+1][j][k][0]=min(dp[i+1][j][k][0],z+v[i+1]-v[i]);
}
if(z+v[i]-v[0]+rv[0]-rv[j+1]<=rt[j+1]){
dp[i][j+1][k+1][1]=min(dp[i][j+1][k+1][1],z+v[i]-v[0]+rv[0]-rv[j+1]);
}
else{
dp[i][j+1][k][1]=min(dp[i][j+1][k][1],z+v[i]-v[0]+rv[0]-rv[j+1]);
}
z=dp[i][j][k][1];
if(z!=inf){
maxx=max(maxx,k);
}
if(z+rv[j]-rv[j+1]<=rt[j+1]){
dp[i][j+1][k+1][1]=min(dp[i][j+1][k+1][1],z+rv[j]-rv[j+1]);
}
else{
dp[i][j+1][k][1]=min(dp[i][j+1][k][1],z+rv[j]-rv[j+1]);
}
if(z+rv[0]-rv[j]+v[i+1]-v[0]<=t[i+1]){
dp[i+1][j][k+1][0]=min(dp[i+1][j][k+1][0],z+rv[0]-rv[j]+v[i+1]-v[0]);
}
else{
dp[i+1][j][k][0]=min(dp[i+1][j][k][0],z+rv[0]-rv[j]+v[i+1]-v[0]);
}
}
}
}
cout << maxx << "\n";
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
50 ms |
135064 KB |
Output is correct |
2 |
Correct |
53 ms |
135136 KB |
Output is correct |
3 |
Correct |
56 ms |
135172 KB |
Output is correct |
4 |
Correct |
60 ms |
135164 KB |
Output is correct |
5 |
Correct |
56 ms |
135108 KB |
Output is correct |
6 |
Correct |
59 ms |
135112 KB |
Output is correct |
7 |
Correct |
61 ms |
135060 KB |
Output is correct |
8 |
Correct |
63 ms |
135064 KB |
Output is correct |
9 |
Correct |
52 ms |
135136 KB |
Output is correct |
10 |
Correct |
55 ms |
135136 KB |
Output is correct |
11 |
Correct |
61 ms |
135128 KB |
Output is correct |
12 |
Correct |
50 ms |
135140 KB |
Output is correct |
13 |
Correct |
54 ms |
135108 KB |
Output is correct |
14 |
Correct |
51 ms |
135060 KB |
Output is correct |
15 |
Correct |
49 ms |
135108 KB |
Output is correct |
16 |
Correct |
58 ms |
135128 KB |
Output is correct |
17 |
Correct |
62 ms |
135108 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
50 ms |
135064 KB |
Output is correct |
2 |
Correct |
53 ms |
135136 KB |
Output is correct |
3 |
Correct |
56 ms |
135172 KB |
Output is correct |
4 |
Correct |
60 ms |
135164 KB |
Output is correct |
5 |
Correct |
56 ms |
135108 KB |
Output is correct |
6 |
Correct |
59 ms |
135112 KB |
Output is correct |
7 |
Correct |
61 ms |
135060 KB |
Output is correct |
8 |
Correct |
63 ms |
135064 KB |
Output is correct |
9 |
Correct |
52 ms |
135136 KB |
Output is correct |
10 |
Correct |
55 ms |
135136 KB |
Output is correct |
11 |
Correct |
61 ms |
135128 KB |
Output is correct |
12 |
Correct |
50 ms |
135140 KB |
Output is correct |
13 |
Correct |
54 ms |
135108 KB |
Output is correct |
14 |
Correct |
51 ms |
135060 KB |
Output is correct |
15 |
Correct |
49 ms |
135108 KB |
Output is correct |
16 |
Correct |
58 ms |
135128 KB |
Output is correct |
17 |
Correct |
62 ms |
135108 KB |
Output is correct |
18 |
Correct |
53 ms |
135104 KB |
Output is correct |
19 |
Correct |
52 ms |
135124 KB |
Output is correct |
20 |
Correct |
53 ms |
135308 KB |
Output is correct |
21 |
Correct |
50 ms |
135052 KB |
Output is correct |
22 |
Correct |
48 ms |
135148 KB |
Output is correct |
23 |
Correct |
54 ms |
135088 KB |
Output is correct |
24 |
Correct |
52 ms |
135100 KB |
Output is correct |
25 |
Correct |
49 ms |
135088 KB |
Output is correct |
26 |
Correct |
49 ms |
135104 KB |
Output is correct |
27 |
Correct |
52 ms |
135100 KB |
Output is correct |
28 |
Correct |
54 ms |
135124 KB |
Output is correct |
29 |
Correct |
54 ms |
135084 KB |
Output is correct |
30 |
Correct |
52 ms |
135108 KB |
Output is correct |
31 |
Correct |
49 ms |
135052 KB |
Output is correct |
32 |
Correct |
48 ms |
135048 KB |
Output is correct |
33 |
Correct |
48 ms |
135160 KB |
Output is correct |
34 |
Correct |
53 ms |
135132 KB |
Output is correct |
35 |
Correct |
53 ms |
135120 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
50 ms |
135064 KB |
Output is correct |
2 |
Correct |
53 ms |
135136 KB |
Output is correct |
3 |
Correct |
56 ms |
135172 KB |
Output is correct |
4 |
Correct |
60 ms |
135164 KB |
Output is correct |
5 |
Correct |
56 ms |
135108 KB |
Output is correct |
6 |
Correct |
59 ms |
135112 KB |
Output is correct |
7 |
Correct |
61 ms |
135060 KB |
Output is correct |
8 |
Correct |
63 ms |
135064 KB |
Output is correct |
9 |
Correct |
52 ms |
135136 KB |
Output is correct |
10 |
Correct |
55 ms |
135136 KB |
Output is correct |
11 |
Correct |
61 ms |
135128 KB |
Output is correct |
12 |
Correct |
50 ms |
135140 KB |
Output is correct |
13 |
Correct |
54 ms |
135108 KB |
Output is correct |
14 |
Correct |
51 ms |
135060 KB |
Output is correct |
15 |
Correct |
49 ms |
135108 KB |
Output is correct |
16 |
Correct |
58 ms |
135128 KB |
Output is correct |
17 |
Correct |
62 ms |
135108 KB |
Output is correct |
18 |
Correct |
70 ms |
135168 KB |
Output is correct |
19 |
Correct |
55 ms |
135168 KB |
Output is correct |
20 |
Correct |
52 ms |
135104 KB |
Output is correct |
21 |
Correct |
54 ms |
135096 KB |
Output is correct |
22 |
Correct |
60 ms |
135168 KB |
Output is correct |
23 |
Correct |
51 ms |
135108 KB |
Output is correct |
24 |
Correct |
50 ms |
135112 KB |
Output is correct |
25 |
Correct |
53 ms |
135080 KB |
Output is correct |
26 |
Correct |
62 ms |
135140 KB |
Output is correct |
27 |
Correct |
53 ms |
135240 KB |
Output is correct |
28 |
Correct |
51 ms |
135092 KB |
Output is correct |
29 |
Correct |
54 ms |
135056 KB |
Output is correct |
30 |
Correct |
55 ms |
135224 KB |
Output is correct |
31 |
Correct |
55 ms |
135048 KB |
Output is correct |
32 |
Correct |
56 ms |
135076 KB |
Output is correct |
33 |
Correct |
55 ms |
135112 KB |
Output is correct |
34 |
Correct |
50 ms |
135128 KB |
Output is correct |
35 |
Correct |
50 ms |
135160 KB |
Output is correct |
36 |
Correct |
48 ms |
135140 KB |
Output is correct |
37 |
Correct |
55 ms |
135208 KB |
Output is correct |
38 |
Correct |
51 ms |
135116 KB |
Output is correct |
39 |
Correct |
67 ms |
135064 KB |
Output is correct |
40 |
Correct |
59 ms |
135076 KB |
Output is correct |
41 |
Correct |
67 ms |
135108 KB |
Output is correct |
42 |
Correct |
59 ms |
135168 KB |
Output is correct |
43 |
Correct |
72 ms |
135068 KB |
Output is correct |
44 |
Correct |
66 ms |
135252 KB |
Output is correct |
45 |
Correct |
82 ms |
135176 KB |
Output is correct |
46 |
Correct |
60 ms |
135160 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
50 ms |
135064 KB |
Output is correct |
2 |
Correct |
53 ms |
135136 KB |
Output is correct |
3 |
Correct |
56 ms |
135172 KB |
Output is correct |
4 |
Correct |
60 ms |
135164 KB |
Output is correct |
5 |
Correct |
56 ms |
135108 KB |
Output is correct |
6 |
Correct |
59 ms |
135112 KB |
Output is correct |
7 |
Correct |
61 ms |
135060 KB |
Output is correct |
8 |
Correct |
63 ms |
135064 KB |
Output is correct |
9 |
Correct |
52 ms |
135136 KB |
Output is correct |
10 |
Correct |
55 ms |
135136 KB |
Output is correct |
11 |
Correct |
61 ms |
135128 KB |
Output is correct |
12 |
Correct |
50 ms |
135140 KB |
Output is correct |
13 |
Correct |
54 ms |
135108 KB |
Output is correct |
14 |
Correct |
51 ms |
135060 KB |
Output is correct |
15 |
Correct |
49 ms |
135108 KB |
Output is correct |
16 |
Correct |
58 ms |
135128 KB |
Output is correct |
17 |
Correct |
62 ms |
135108 KB |
Output is correct |
18 |
Correct |
53 ms |
135104 KB |
Output is correct |
19 |
Correct |
52 ms |
135124 KB |
Output is correct |
20 |
Correct |
53 ms |
135308 KB |
Output is correct |
21 |
Correct |
50 ms |
135052 KB |
Output is correct |
22 |
Correct |
48 ms |
135148 KB |
Output is correct |
23 |
Correct |
54 ms |
135088 KB |
Output is correct |
24 |
Correct |
52 ms |
135100 KB |
Output is correct |
25 |
Correct |
49 ms |
135088 KB |
Output is correct |
26 |
Correct |
49 ms |
135104 KB |
Output is correct |
27 |
Correct |
52 ms |
135100 KB |
Output is correct |
28 |
Correct |
54 ms |
135124 KB |
Output is correct |
29 |
Correct |
54 ms |
135084 KB |
Output is correct |
30 |
Correct |
52 ms |
135108 KB |
Output is correct |
31 |
Correct |
49 ms |
135052 KB |
Output is correct |
32 |
Correct |
48 ms |
135048 KB |
Output is correct |
33 |
Correct |
48 ms |
135160 KB |
Output is correct |
34 |
Correct |
53 ms |
135132 KB |
Output is correct |
35 |
Correct |
53 ms |
135120 KB |
Output is correct |
36 |
Correct |
70 ms |
135168 KB |
Output is correct |
37 |
Correct |
55 ms |
135168 KB |
Output is correct |
38 |
Correct |
52 ms |
135104 KB |
Output is correct |
39 |
Correct |
54 ms |
135096 KB |
Output is correct |
40 |
Correct |
60 ms |
135168 KB |
Output is correct |
41 |
Correct |
51 ms |
135108 KB |
Output is correct |
42 |
Correct |
50 ms |
135112 KB |
Output is correct |
43 |
Correct |
53 ms |
135080 KB |
Output is correct |
44 |
Correct |
62 ms |
135140 KB |
Output is correct |
45 |
Correct |
53 ms |
135240 KB |
Output is correct |
46 |
Correct |
51 ms |
135092 KB |
Output is correct |
47 |
Correct |
54 ms |
135056 KB |
Output is correct |
48 |
Correct |
55 ms |
135224 KB |
Output is correct |
49 |
Correct |
55 ms |
135048 KB |
Output is correct |
50 |
Correct |
56 ms |
135076 KB |
Output is correct |
51 |
Correct |
55 ms |
135112 KB |
Output is correct |
52 |
Correct |
50 ms |
135128 KB |
Output is correct |
53 |
Correct |
50 ms |
135160 KB |
Output is correct |
54 |
Correct |
48 ms |
135140 KB |
Output is correct |
55 |
Correct |
55 ms |
135208 KB |
Output is correct |
56 |
Correct |
51 ms |
135116 KB |
Output is correct |
57 |
Correct |
67 ms |
135064 KB |
Output is correct |
58 |
Correct |
59 ms |
135076 KB |
Output is correct |
59 |
Correct |
67 ms |
135108 KB |
Output is correct |
60 |
Correct |
59 ms |
135168 KB |
Output is correct |
61 |
Correct |
72 ms |
135068 KB |
Output is correct |
62 |
Correct |
66 ms |
135252 KB |
Output is correct |
63 |
Correct |
82 ms |
135176 KB |
Output is correct |
64 |
Correct |
60 ms |
135160 KB |
Output is correct |
65 |
Correct |
71 ms |
135140 KB |
Output is correct |
66 |
Correct |
65 ms |
135072 KB |
Output is correct |
67 |
Correct |
65 ms |
135112 KB |
Output is correct |
68 |
Correct |
74 ms |
135108 KB |
Output is correct |
69 |
Correct |
68 ms |
135120 KB |
Output is correct |
70 |
Correct |
63 ms |
135080 KB |
Output is correct |
71 |
Correct |
63 ms |
135108 KB |
Output is correct |
72 |
Correct |
70 ms |
135108 KB |
Output is correct |
73 |
Correct |
75 ms |
135108 KB |
Output is correct |
74 |
Correct |
70 ms |
135176 KB |
Output is correct |
75 |
Correct |
65 ms |
135068 KB |
Output is correct |
76 |
Correct |
70 ms |
135108 KB |
Output is correct |
77 |
Correct |
68 ms |
135080 KB |
Output is correct |
78 |
Correct |
75 ms |
135084 KB |
Output is correct |
79 |
Correct |
67 ms |
135172 KB |
Output is correct |
80 |
Correct |
71 ms |
135108 KB |
Output is correct |
81 |
Correct |
63 ms |
135108 KB |
Output is correct |
82 |
Correct |
63 ms |
135096 KB |
Output is correct |
83 |
Correct |
67 ms |
135124 KB |
Output is correct |
84 |
Correct |
64 ms |
135176 KB |
Output is correct |
85 |
Correct |
73 ms |
135144 KB |
Output is correct |
86 |
Correct |
70 ms |
135104 KB |
Output is correct |
87 |
Correct |
64 ms |
135168 KB |
Output is correct |
88 |
Correct |
68 ms |
135108 KB |
Output is correct |
89 |
Correct |
74 ms |
135188 KB |
Output is correct |
90 |
Correct |
66 ms |
135180 KB |
Output is correct |
91 |
Correct |
76 ms |
135108 KB |
Output is correct |
92 |
Correct |
80 ms |
135096 KB |
Output is correct |
93 |
Correct |
66 ms |
135072 KB |
Output is correct |