#include <bits/stdc++.h>
using namespace std;
#define int long long
#define double long double
#define FOR(i, l, r, d) for(int i=(l); i<=(r); i+=(d))
#define szof(x) ((int)(x).size())
#define vi vector<int>
#define pii pair<int, int>
#define F first
#define S second
#define pb push_back
#define eb emplace_back
#define mkp make_pair
const int INF = INT_MAX;
const int LNF = INF*INF;
const int MOD = 1000000007;
const double eps = 1e-12;
// #pragma GCC optimize("Ofast")
// #pragma GCC optimize("unroll-loops")
const int MAX = 210;
int n, L;
int pos[MAX];
int lim[MAX];
int dp[MAX][MAX][MAX][2];
// dp[l][r][c][p] : min. time of visited l from left, r from right, collected c, now at l/r
signed main(){
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
cin>>n>>L;
FOR(i, 1, n, 1){
cin>>pos[i];
}
pos[n+1] = L;
FOR(i, 1, n, 1){
cin>>lim[i];
}
FOR(l, 0, n, 1){
FOR(r, 0, n, 1){
FOR(c, 0, n, 1){
FOR(p, 0, 1, 1){
dp[l][r][c][p] = LNF;
}
}
}
}
dp[0][0][0][0] = dp[0][0][0][1] = 0;
FOR(l, 0, n, 1){
FOR(r, 0, n, 1){
if(l + r >= n) break;
FOR(c, 0, n, 1){
// dp[l][r][c][0] -> dp[l+1][r][?][0], dp[l][r+1][?][1]
int tol = dp[l][r][c][0] + (pos[l+1] - pos[l]);
int tor = dp[l][r][c][0] + (pos[l] + L - pos[n-r]);
int cl = c + (tol <= lim[l+1]);
int cr = c + (tor <= lim[n-r]);
dp[l+1][r][cl][0] = min(dp[l+1][r][cl][0], tol);
dp[l][r+1][cr][1] = min(dp[l][r+1][cr][1], tor);
// dp[l][r][c][1] -> dp[l+1][r][?][0], dp[l][r+1][?][1]
tol = dp[l][r][c][1] + (L - pos[n-r+1] + pos[l+1]);
tor = dp[l][r][c][1] + (pos[n-r+1] - pos[n-r]);
cl = c + (tol <= lim[l+1]);
cr = c + (tor <= lim[n-r]);
dp[l+1][r][cl][0] = min(dp[l+1][r][cl][0], tol);
dp[l][r+1][cr][1] = min(dp[l][r+1][cr][1], tor);
}
}
}
int res = 0;
FOR(l, 0, n, 1){
FOR(r, 0, n, 1){
FOR(c, 0, n, 1){
FOR(p, 0, 1, 1){
if(dp[l][r][c][p] < LNF) res = max(res, c);
}
}
}
}
cout<<res<<'\n';
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
672 KB |
Output is correct |
4 |
Correct |
1 ms |
460 KB |
Output is correct |
5 |
Correct |
1 ms |
460 KB |
Output is correct |
6 |
Correct |
1 ms |
844 KB |
Output is correct |
7 |
Correct |
1 ms |
588 KB |
Output is correct |
8 |
Correct |
1 ms |
716 KB |
Output is correct |
9 |
Correct |
1 ms |
844 KB |
Output is correct |
10 |
Correct |
1 ms |
324 KB |
Output is correct |
11 |
Correct |
1 ms |
332 KB |
Output is correct |
12 |
Correct |
1 ms |
844 KB |
Output is correct |
13 |
Correct |
1 ms |
844 KB |
Output is correct |
14 |
Correct |
1 ms |
460 KB |
Output is correct |
15 |
Correct |
1 ms |
584 KB |
Output is correct |
16 |
Correct |
1 ms |
836 KB |
Output is correct |
17 |
Correct |
1 ms |
844 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
672 KB |
Output is correct |
4 |
Correct |
1 ms |
460 KB |
Output is correct |
5 |
Correct |
1 ms |
460 KB |
Output is correct |
6 |
Correct |
1 ms |
844 KB |
Output is correct |
7 |
Correct |
1 ms |
588 KB |
Output is correct |
8 |
Correct |
1 ms |
716 KB |
Output is correct |
9 |
Correct |
1 ms |
844 KB |
Output is correct |
10 |
Correct |
1 ms |
324 KB |
Output is correct |
11 |
Correct |
1 ms |
332 KB |
Output is correct |
12 |
Correct |
1 ms |
844 KB |
Output is correct |
13 |
Correct |
1 ms |
844 KB |
Output is correct |
14 |
Correct |
1 ms |
460 KB |
Output is correct |
15 |
Correct |
1 ms |
584 KB |
Output is correct |
16 |
Correct |
1 ms |
836 KB |
Output is correct |
17 |
Correct |
1 ms |
844 KB |
Output is correct |
18 |
Correct |
1 ms |
972 KB |
Output is correct |
19 |
Correct |
1 ms |
716 KB |
Output is correct |
20 |
Correct |
1 ms |
844 KB |
Output is correct |
21 |
Correct |
1 ms |
1088 KB |
Output is correct |
22 |
Correct |
1 ms |
588 KB |
Output is correct |
23 |
Correct |
1 ms |
1100 KB |
Output is correct |
24 |
Correct |
1 ms |
972 KB |
Output is correct |
25 |
Correct |
1 ms |
972 KB |
Output is correct |
26 |
Correct |
1 ms |
972 KB |
Output is correct |
27 |
Correct |
1 ms |
580 KB |
Output is correct |
28 |
Correct |
1 ms |
580 KB |
Output is correct |
29 |
Correct |
1 ms |
1100 KB |
Output is correct |
30 |
Correct |
1 ms |
1100 KB |
Output is correct |
31 |
Correct |
1 ms |
1092 KB |
Output is correct |
32 |
Correct |
1 ms |
964 KB |
Output is correct |
33 |
Correct |
1 ms |
1100 KB |
Output is correct |
34 |
Correct |
1 ms |
1100 KB |
Output is correct |
35 |
Correct |
1 ms |
1100 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
672 KB |
Output is correct |
4 |
Correct |
1 ms |
460 KB |
Output is correct |
5 |
Correct |
1 ms |
460 KB |
Output is correct |
6 |
Correct |
1 ms |
844 KB |
Output is correct |
7 |
Correct |
1 ms |
588 KB |
Output is correct |
8 |
Correct |
1 ms |
716 KB |
Output is correct |
9 |
Correct |
1 ms |
844 KB |
Output is correct |
10 |
Correct |
1 ms |
324 KB |
Output is correct |
11 |
Correct |
1 ms |
332 KB |
Output is correct |
12 |
Correct |
1 ms |
844 KB |
Output is correct |
13 |
Correct |
1 ms |
844 KB |
Output is correct |
14 |
Correct |
1 ms |
460 KB |
Output is correct |
15 |
Correct |
1 ms |
584 KB |
Output is correct |
16 |
Correct |
1 ms |
836 KB |
Output is correct |
17 |
Correct |
1 ms |
844 KB |
Output is correct |
18 |
Correct |
86 ms |
107484 KB |
Output is correct |
19 |
Correct |
51 ms |
65144 KB |
Output is correct |
20 |
Correct |
31 ms |
34744 KB |
Output is correct |
21 |
Correct |
46 ms |
61552 KB |
Output is correct |
22 |
Correct |
60 ms |
79792 KB |
Output is correct |
23 |
Correct |
19 ms |
29516 KB |
Output is correct |
24 |
Correct |
20 ms |
23116 KB |
Output is correct |
25 |
Correct |
21 ms |
29024 KB |
Output is correct |
26 |
Correct |
8 ms |
11072 KB |
Output is correct |
27 |
Correct |
27 ms |
30156 KB |
Output is correct |
28 |
Correct |
15 ms |
21460 KB |
Output is correct |
29 |
Correct |
20 ms |
30796 KB |
Output is correct |
30 |
Correct |
17 ms |
24316 KB |
Output is correct |
31 |
Correct |
20 ms |
29028 KB |
Output is correct |
32 |
Correct |
10 ms |
15160 KB |
Output is correct |
33 |
Correct |
18 ms |
29028 KB |
Output is correct |
34 |
Correct |
6 ms |
10316 KB |
Output is correct |
35 |
Correct |
20 ms |
28408 KB |
Output is correct |
36 |
Correct |
8 ms |
13516 KB |
Output is correct |
37 |
Correct |
19 ms |
30204 KB |
Output is correct |
38 |
Correct |
11 ms |
16564 KB |
Output is correct |
39 |
Correct |
22 ms |
31536 KB |
Output is correct |
40 |
Correct |
12 ms |
18432 KB |
Output is correct |
41 |
Correct |
112 ms |
132464 KB |
Output is correct |
42 |
Correct |
80 ms |
89316 KB |
Output is correct |
43 |
Correct |
121 ms |
132548 KB |
Output is correct |
44 |
Correct |
73 ms |
88132 KB |
Output is correct |
45 |
Correct |
110 ms |
132584 KB |
Output is correct |
46 |
Correct |
68 ms |
89312 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
672 KB |
Output is correct |
4 |
Correct |
1 ms |
460 KB |
Output is correct |
5 |
Correct |
1 ms |
460 KB |
Output is correct |
6 |
Correct |
1 ms |
844 KB |
Output is correct |
7 |
Correct |
1 ms |
588 KB |
Output is correct |
8 |
Correct |
1 ms |
716 KB |
Output is correct |
9 |
Correct |
1 ms |
844 KB |
Output is correct |
10 |
Correct |
1 ms |
324 KB |
Output is correct |
11 |
Correct |
1 ms |
332 KB |
Output is correct |
12 |
Correct |
1 ms |
844 KB |
Output is correct |
13 |
Correct |
1 ms |
844 KB |
Output is correct |
14 |
Correct |
1 ms |
460 KB |
Output is correct |
15 |
Correct |
1 ms |
584 KB |
Output is correct |
16 |
Correct |
1 ms |
836 KB |
Output is correct |
17 |
Correct |
1 ms |
844 KB |
Output is correct |
18 |
Correct |
1 ms |
972 KB |
Output is correct |
19 |
Correct |
1 ms |
716 KB |
Output is correct |
20 |
Correct |
1 ms |
844 KB |
Output is correct |
21 |
Correct |
1 ms |
1088 KB |
Output is correct |
22 |
Correct |
1 ms |
588 KB |
Output is correct |
23 |
Correct |
1 ms |
1100 KB |
Output is correct |
24 |
Correct |
1 ms |
972 KB |
Output is correct |
25 |
Correct |
1 ms |
972 KB |
Output is correct |
26 |
Correct |
1 ms |
972 KB |
Output is correct |
27 |
Correct |
1 ms |
580 KB |
Output is correct |
28 |
Correct |
1 ms |
580 KB |
Output is correct |
29 |
Correct |
1 ms |
1100 KB |
Output is correct |
30 |
Correct |
1 ms |
1100 KB |
Output is correct |
31 |
Correct |
1 ms |
1092 KB |
Output is correct |
32 |
Correct |
1 ms |
964 KB |
Output is correct |
33 |
Correct |
1 ms |
1100 KB |
Output is correct |
34 |
Correct |
1 ms |
1100 KB |
Output is correct |
35 |
Correct |
1 ms |
1100 KB |
Output is correct |
36 |
Correct |
86 ms |
107484 KB |
Output is correct |
37 |
Correct |
51 ms |
65144 KB |
Output is correct |
38 |
Correct |
31 ms |
34744 KB |
Output is correct |
39 |
Correct |
46 ms |
61552 KB |
Output is correct |
40 |
Correct |
60 ms |
79792 KB |
Output is correct |
41 |
Correct |
19 ms |
29516 KB |
Output is correct |
42 |
Correct |
20 ms |
23116 KB |
Output is correct |
43 |
Correct |
21 ms |
29024 KB |
Output is correct |
44 |
Correct |
8 ms |
11072 KB |
Output is correct |
45 |
Correct |
27 ms |
30156 KB |
Output is correct |
46 |
Correct |
15 ms |
21460 KB |
Output is correct |
47 |
Correct |
20 ms |
30796 KB |
Output is correct |
48 |
Correct |
17 ms |
24316 KB |
Output is correct |
49 |
Correct |
20 ms |
29028 KB |
Output is correct |
50 |
Correct |
10 ms |
15160 KB |
Output is correct |
51 |
Correct |
18 ms |
29028 KB |
Output is correct |
52 |
Correct |
6 ms |
10316 KB |
Output is correct |
53 |
Correct |
20 ms |
28408 KB |
Output is correct |
54 |
Correct |
8 ms |
13516 KB |
Output is correct |
55 |
Correct |
19 ms |
30204 KB |
Output is correct |
56 |
Correct |
11 ms |
16564 KB |
Output is correct |
57 |
Correct |
22 ms |
31536 KB |
Output is correct |
58 |
Correct |
12 ms |
18432 KB |
Output is correct |
59 |
Correct |
112 ms |
132464 KB |
Output is correct |
60 |
Correct |
80 ms |
89316 KB |
Output is correct |
61 |
Correct |
121 ms |
132548 KB |
Output is correct |
62 |
Correct |
73 ms |
88132 KB |
Output is correct |
63 |
Correct |
110 ms |
132584 KB |
Output is correct |
64 |
Correct |
68 ms |
89312 KB |
Output is correct |
65 |
Correct |
102 ms |
119760 KB |
Output is correct |
66 |
Correct |
97 ms |
109876 KB |
Output is correct |
67 |
Correct |
84 ms |
105028 KB |
Output is correct |
68 |
Correct |
77 ms |
97032 KB |
Output is correct |
69 |
Correct |
101 ms |
118456 KB |
Output is correct |
70 |
Correct |
107 ms |
113504 KB |
Output is correct |
71 |
Correct |
96 ms |
114740 KB |
Output is correct |
72 |
Correct |
99 ms |
115948 KB |
Output is correct |
73 |
Correct |
93 ms |
107492 KB |
Output is correct |
74 |
Correct |
89 ms |
100420 KB |
Output is correct |
75 |
Correct |
90 ms |
111016 KB |
Output is correct |
76 |
Correct |
102 ms |
127304 KB |
Output is correct |
77 |
Correct |
125 ms |
127348 KB |
Output is correct |
78 |
Correct |
78 ms |
98176 KB |
Output is correct |
79 |
Correct |
85 ms |
101588 KB |
Output is correct |
80 |
Correct |
103 ms |
124776 KB |
Output is correct |
81 |
Correct |
80 ms |
102756 KB |
Output is correct |
82 |
Correct |
90 ms |
108588 KB |
Output is correct |
83 |
Correct |
110 ms |
132608 KB |
Output is correct |
84 |
Correct |
105 ms |
113576 KB |
Output is correct |
85 |
Correct |
102 ms |
123500 KB |
Output is correct |
86 |
Correct |
98 ms |
120964 KB |
Output is correct |
87 |
Correct |
97 ms |
111080 KB |
Output is correct |
88 |
Correct |
116 ms |
133828 KB |
Output is correct |
89 |
Correct |
119 ms |
133924 KB |
Output is correct |
90 |
Correct |
88 ms |
112300 KB |
Output is correct |
91 |
Correct |
111 ms |
133828 KB |
Output is correct |
92 |
Correct |
116 ms |
133920 KB |
Output is correct |
93 |
Correct |
114 ms |
131192 KB |
Output is correct |