#include <bits/stdc++.h>
using namespace std;
#define int long long
#define fi first
#define se second
#define ll long long
#define pb push_back
#define db(val) "[" #val " = " << (val) << "] "
const ll mod = 1e9 + 7;
const int maxn = 1e5 + 4;
const int N = 205;
int n, L, x[N], t[N], dp[N][N][N][2], INF;
void MIN(int &a, int b) {
if (a > b) a = b;
}
int dist(int from, int to) {
if (from > to) swap(from, to);
return min(x[to] - x[from], L - (x[to] - x[from]));
}
signed main()
{
ios::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
//freopen(".INP", "r", stdin);
//freopen(".OUT", "w", stdout);
cin >> n >> L;
for (int i = 1; i <= n; i++)
cin >> x[i];
for (int i = 1; i <= n; i++)
cin >> t[i];
memset(dp, 63, sizeof dp);
INF = dp[0][0][0][0];
dp[0][n + 1][0][0] = 0;
x[n + 1] = L;
for (int sz = n + 1; sz > 1; sz--) {
for (int i = 0; i <= n + 1 - sz; i++) {
int j = i + sz;
for (int k = 0; k <= n; k++) {
int x;
if (dp[i][j][k][0] != INF) {
x = dp[i][j][k][0] + dist(i, i + 1);
MIN(dp[i + 1][j][k + (x <= t[i + 1])][0], x);
x = dp[i][j][k][0] + dist(i, j - 1);
MIN(dp[i][j - 1][k + (x <= t[j - 1])][1], x);
}
if (dp[i][j][k][1] != INF) {
x = dp[i][j][k][1] + dist(j, i + 1);
MIN(dp[i + 1][j][k + (x <= t[i + 1])][0], x);
x = dp[i][j][k][1] + dist(j, j - 1);
MIN(dp[i][j - 1][k + (x <= t[j - 1])][1], x);
}
}
}
}
int ans = 0;
for (int k = 0; k <= n; k++)
for (int i = 0; i <= n; i++)
if (dp[i][i + 1][k][0] != INF || dp[i][i + 1][k][1] != INF)
ans = k;
cout << ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
52 ms |
135116 KB |
Output is correct |
2 |
Correct |
58 ms |
135068 KB |
Output is correct |
3 |
Correct |
53 ms |
135076 KB |
Output is correct |
4 |
Correct |
51 ms |
135124 KB |
Output is correct |
5 |
Correct |
52 ms |
135228 KB |
Output is correct |
6 |
Correct |
50 ms |
135112 KB |
Output is correct |
7 |
Correct |
58 ms |
135116 KB |
Output is correct |
8 |
Correct |
51 ms |
135076 KB |
Output is correct |
9 |
Correct |
51 ms |
135116 KB |
Output is correct |
10 |
Correct |
51 ms |
135104 KB |
Output is correct |
11 |
Correct |
60 ms |
135056 KB |
Output is correct |
12 |
Correct |
57 ms |
135084 KB |
Output is correct |
13 |
Correct |
53 ms |
135056 KB |
Output is correct |
14 |
Correct |
50 ms |
135152 KB |
Output is correct |
15 |
Correct |
53 ms |
135116 KB |
Output is correct |
16 |
Correct |
57 ms |
135156 KB |
Output is correct |
17 |
Correct |
53 ms |
135064 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
52 ms |
135116 KB |
Output is correct |
2 |
Correct |
58 ms |
135068 KB |
Output is correct |
3 |
Correct |
53 ms |
135076 KB |
Output is correct |
4 |
Correct |
51 ms |
135124 KB |
Output is correct |
5 |
Correct |
52 ms |
135228 KB |
Output is correct |
6 |
Correct |
50 ms |
135112 KB |
Output is correct |
7 |
Correct |
58 ms |
135116 KB |
Output is correct |
8 |
Correct |
51 ms |
135076 KB |
Output is correct |
9 |
Correct |
51 ms |
135116 KB |
Output is correct |
10 |
Correct |
51 ms |
135104 KB |
Output is correct |
11 |
Correct |
60 ms |
135056 KB |
Output is correct |
12 |
Correct |
57 ms |
135084 KB |
Output is correct |
13 |
Correct |
53 ms |
135056 KB |
Output is correct |
14 |
Correct |
50 ms |
135152 KB |
Output is correct |
15 |
Correct |
53 ms |
135116 KB |
Output is correct |
16 |
Correct |
57 ms |
135156 KB |
Output is correct |
17 |
Correct |
53 ms |
135064 KB |
Output is correct |
18 |
Correct |
59 ms |
135084 KB |
Output is correct |
19 |
Correct |
53 ms |
135156 KB |
Output is correct |
20 |
Correct |
52 ms |
135152 KB |
Output is correct |
21 |
Correct |
53 ms |
135168 KB |
Output is correct |
22 |
Correct |
50 ms |
135076 KB |
Output is correct |
23 |
Correct |
50 ms |
135112 KB |
Output is correct |
24 |
Correct |
58 ms |
135160 KB |
Output is correct |
25 |
Correct |
50 ms |
135136 KB |
Output is correct |
26 |
Correct |
50 ms |
135104 KB |
Output is correct |
27 |
Correct |
55 ms |
135112 KB |
Output is correct |
28 |
Correct |
54 ms |
135072 KB |
Output is correct |
29 |
Correct |
51 ms |
135168 KB |
Output is correct |
30 |
Correct |
56 ms |
135116 KB |
Output is correct |
31 |
Correct |
51 ms |
135116 KB |
Output is correct |
32 |
Correct |
50 ms |
135176 KB |
Output is correct |
33 |
Correct |
50 ms |
135064 KB |
Output is correct |
34 |
Correct |
56 ms |
135104 KB |
Output is correct |
35 |
Correct |
58 ms |
135116 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
52 ms |
135116 KB |
Output is correct |
2 |
Correct |
58 ms |
135068 KB |
Output is correct |
3 |
Correct |
53 ms |
135076 KB |
Output is correct |
4 |
Correct |
51 ms |
135124 KB |
Output is correct |
5 |
Correct |
52 ms |
135228 KB |
Output is correct |
6 |
Correct |
50 ms |
135112 KB |
Output is correct |
7 |
Correct |
58 ms |
135116 KB |
Output is correct |
8 |
Correct |
51 ms |
135076 KB |
Output is correct |
9 |
Correct |
51 ms |
135116 KB |
Output is correct |
10 |
Correct |
51 ms |
135104 KB |
Output is correct |
11 |
Correct |
60 ms |
135056 KB |
Output is correct |
12 |
Correct |
57 ms |
135084 KB |
Output is correct |
13 |
Correct |
53 ms |
135056 KB |
Output is correct |
14 |
Correct |
50 ms |
135152 KB |
Output is correct |
15 |
Correct |
53 ms |
135116 KB |
Output is correct |
16 |
Correct |
57 ms |
135156 KB |
Output is correct |
17 |
Correct |
53 ms |
135064 KB |
Output is correct |
18 |
Correct |
76 ms |
135088 KB |
Output is correct |
19 |
Correct |
70 ms |
135088 KB |
Output is correct |
20 |
Correct |
55 ms |
135116 KB |
Output is correct |
21 |
Correct |
64 ms |
135212 KB |
Output is correct |
22 |
Correct |
71 ms |
135156 KB |
Output is correct |
23 |
Correct |
61 ms |
135092 KB |
Output is correct |
24 |
Correct |
65 ms |
135060 KB |
Output is correct |
25 |
Correct |
58 ms |
135100 KB |
Output is correct |
26 |
Correct |
52 ms |
135248 KB |
Output is correct |
27 |
Correct |
55 ms |
135100 KB |
Output is correct |
28 |
Correct |
52 ms |
135180 KB |
Output is correct |
29 |
Correct |
56 ms |
135080 KB |
Output is correct |
30 |
Correct |
63 ms |
135076 KB |
Output is correct |
31 |
Correct |
60 ms |
135112 KB |
Output is correct |
32 |
Correct |
51 ms |
135116 KB |
Output is correct |
33 |
Correct |
56 ms |
135128 KB |
Output is correct |
34 |
Correct |
50 ms |
135124 KB |
Output is correct |
35 |
Correct |
59 ms |
135116 KB |
Output is correct |
36 |
Correct |
52 ms |
135148 KB |
Output is correct |
37 |
Correct |
57 ms |
135100 KB |
Output is correct |
38 |
Correct |
58 ms |
135104 KB |
Output is correct |
39 |
Correct |
58 ms |
135172 KB |
Output is correct |
40 |
Correct |
58 ms |
135116 KB |
Output is correct |
41 |
Correct |
93 ms |
135092 KB |
Output is correct |
42 |
Correct |
55 ms |
135116 KB |
Output is correct |
43 |
Correct |
99 ms |
135116 KB |
Output is correct |
44 |
Correct |
71 ms |
135092 KB |
Output is correct |
45 |
Correct |
95 ms |
135180 KB |
Output is correct |
46 |
Correct |
64 ms |
135152 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
52 ms |
135116 KB |
Output is correct |
2 |
Correct |
58 ms |
135068 KB |
Output is correct |
3 |
Correct |
53 ms |
135076 KB |
Output is correct |
4 |
Correct |
51 ms |
135124 KB |
Output is correct |
5 |
Correct |
52 ms |
135228 KB |
Output is correct |
6 |
Correct |
50 ms |
135112 KB |
Output is correct |
7 |
Correct |
58 ms |
135116 KB |
Output is correct |
8 |
Correct |
51 ms |
135076 KB |
Output is correct |
9 |
Correct |
51 ms |
135116 KB |
Output is correct |
10 |
Correct |
51 ms |
135104 KB |
Output is correct |
11 |
Correct |
60 ms |
135056 KB |
Output is correct |
12 |
Correct |
57 ms |
135084 KB |
Output is correct |
13 |
Correct |
53 ms |
135056 KB |
Output is correct |
14 |
Correct |
50 ms |
135152 KB |
Output is correct |
15 |
Correct |
53 ms |
135116 KB |
Output is correct |
16 |
Correct |
57 ms |
135156 KB |
Output is correct |
17 |
Correct |
53 ms |
135064 KB |
Output is correct |
18 |
Correct |
59 ms |
135084 KB |
Output is correct |
19 |
Correct |
53 ms |
135156 KB |
Output is correct |
20 |
Correct |
52 ms |
135152 KB |
Output is correct |
21 |
Correct |
53 ms |
135168 KB |
Output is correct |
22 |
Correct |
50 ms |
135076 KB |
Output is correct |
23 |
Correct |
50 ms |
135112 KB |
Output is correct |
24 |
Correct |
58 ms |
135160 KB |
Output is correct |
25 |
Correct |
50 ms |
135136 KB |
Output is correct |
26 |
Correct |
50 ms |
135104 KB |
Output is correct |
27 |
Correct |
55 ms |
135112 KB |
Output is correct |
28 |
Correct |
54 ms |
135072 KB |
Output is correct |
29 |
Correct |
51 ms |
135168 KB |
Output is correct |
30 |
Correct |
56 ms |
135116 KB |
Output is correct |
31 |
Correct |
51 ms |
135116 KB |
Output is correct |
32 |
Correct |
50 ms |
135176 KB |
Output is correct |
33 |
Correct |
50 ms |
135064 KB |
Output is correct |
34 |
Correct |
56 ms |
135104 KB |
Output is correct |
35 |
Correct |
58 ms |
135116 KB |
Output is correct |
36 |
Correct |
76 ms |
135088 KB |
Output is correct |
37 |
Correct |
70 ms |
135088 KB |
Output is correct |
38 |
Correct |
55 ms |
135116 KB |
Output is correct |
39 |
Correct |
64 ms |
135212 KB |
Output is correct |
40 |
Correct |
71 ms |
135156 KB |
Output is correct |
41 |
Correct |
61 ms |
135092 KB |
Output is correct |
42 |
Correct |
65 ms |
135060 KB |
Output is correct |
43 |
Correct |
58 ms |
135100 KB |
Output is correct |
44 |
Correct |
52 ms |
135248 KB |
Output is correct |
45 |
Correct |
55 ms |
135100 KB |
Output is correct |
46 |
Correct |
52 ms |
135180 KB |
Output is correct |
47 |
Correct |
56 ms |
135080 KB |
Output is correct |
48 |
Correct |
63 ms |
135076 KB |
Output is correct |
49 |
Correct |
60 ms |
135112 KB |
Output is correct |
50 |
Correct |
51 ms |
135116 KB |
Output is correct |
51 |
Correct |
56 ms |
135128 KB |
Output is correct |
52 |
Correct |
50 ms |
135124 KB |
Output is correct |
53 |
Correct |
59 ms |
135116 KB |
Output is correct |
54 |
Correct |
52 ms |
135148 KB |
Output is correct |
55 |
Correct |
57 ms |
135100 KB |
Output is correct |
56 |
Correct |
58 ms |
135104 KB |
Output is correct |
57 |
Correct |
58 ms |
135172 KB |
Output is correct |
58 |
Correct |
58 ms |
135116 KB |
Output is correct |
59 |
Correct |
93 ms |
135092 KB |
Output is correct |
60 |
Correct |
55 ms |
135116 KB |
Output is correct |
61 |
Correct |
99 ms |
135116 KB |
Output is correct |
62 |
Correct |
71 ms |
135092 KB |
Output is correct |
63 |
Correct |
95 ms |
135180 KB |
Output is correct |
64 |
Correct |
64 ms |
135152 KB |
Output is correct |
65 |
Correct |
93 ms |
135100 KB |
Output is correct |
66 |
Correct |
86 ms |
135188 KB |
Output is correct |
67 |
Correct |
80 ms |
135164 KB |
Output is correct |
68 |
Correct |
75 ms |
135116 KB |
Output is correct |
69 |
Correct |
89 ms |
135176 KB |
Output is correct |
70 |
Correct |
106 ms |
135100 KB |
Output is correct |
71 |
Correct |
82 ms |
135172 KB |
Output is correct |
72 |
Correct |
92 ms |
135184 KB |
Output is correct |
73 |
Correct |
68 ms |
135184 KB |
Output is correct |
74 |
Correct |
80 ms |
135116 KB |
Output is correct |
75 |
Correct |
84 ms |
135076 KB |
Output is correct |
76 |
Correct |
118 ms |
135184 KB |
Output is correct |
77 |
Correct |
96 ms |
135264 KB |
Output is correct |
78 |
Correct |
83 ms |
135180 KB |
Output is correct |
79 |
Correct |
81 ms |
135128 KB |
Output is correct |
80 |
Correct |
97 ms |
135184 KB |
Output is correct |
81 |
Correct |
75 ms |
135136 KB |
Output is correct |
82 |
Correct |
73 ms |
135064 KB |
Output is correct |
83 |
Correct |
89 ms |
135116 KB |
Output is correct |
84 |
Correct |
81 ms |
135140 KB |
Output is correct |
85 |
Correct |
70 ms |
135188 KB |
Output is correct |
86 |
Correct |
75 ms |
135096 KB |
Output is correct |
87 |
Correct |
84 ms |
135132 KB |
Output is correct |
88 |
Correct |
104 ms |
135096 KB |
Output is correct |
89 |
Correct |
105 ms |
135108 KB |
Output is correct |
90 |
Correct |
63 ms |
135116 KB |
Output is correct |
91 |
Correct |
104 ms |
135084 KB |
Output is correct |
92 |
Correct |
98 ms |
135188 KB |
Output is correct |
93 |
Correct |
59 ms |
135156 KB |
Output is correct |