#include <bits/stdc++.h>
#define long long long
using namespace std;
const int N = 205;
int n, l, ans;
int x[N], t[N];
long L[N][N][N], R[N][N][N];
long d(int a, int b) { return min(abs(x[b] - x[a]), l - abs(x[b] - x[a])); }
int main() {
scanf("%d %d", &n, &l);
for(int i = 1; i <= n; i++) scanf("%d", x + i);
for(int i = 1; i <= n; i++) scanf("%d", t + i);
x[n + 1] = l;
for(int k = 0; k <= n; k++) for(int i = 0; i <= n; i++) for(int j = n + 1; j; j--) {
if(j <= i || (!i && j == n + 1 && !k)) continue;
L[k][i][j] = R[k][i][j] = 1e18;
if(i) L[k][i][j] = min({L[k][i][j], L[k][i-1][j] + d(i-1, i), R[k][i-1][j] + d(j, i)});
if(j <= n) R[k][i][j] = min({R[k][i][j], L[k][i][j+1] + d(i, j), R[k][i][j+1] + d(j+1, j)});
if(k) {
long T;
if(i) {
T = min(L[k-1][i-1][j] + d(i-1, i), R[k-1][i-1][j] + d(j, i));
if(T <= t[i]) L[k][i][j] = min(L[k][i][j], T);
}
if(j <= n) {
T = min(L[k-1][i][j+1] + d(i, j), R[k-1][i][j+1] + d(j+1, j));
if(T <= t[j]) R[k][i][j] = min(R[k][i][j], T);
}
}
if(L[k][i][j] != 1e18 || R[k][i][j] != 1e18) ans = max(ans, k);
}
printf("%d\n", ans);
return 0;
}
Compilation message
ho_t3.cpp: In function 'int main()':
ho_t3.cpp:17:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d %d", &n, &l);
~~~~~^~~~~~~~~~~~~~~~~
ho_t3.cpp:18:38: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
for(int i = 1; i <= n; i++) scanf("%d", x + i);
~~~~~^~~~~~~~~~~~~
ho_t3.cpp:19:38: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
for(int i = 1; i <= n; i++) scanf("%d", t + i);
~~~~~^~~~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
512 KB |
Output is correct |
2 |
Correct |
4 ms |
512 KB |
Output is correct |
3 |
Correct |
5 ms |
768 KB |
Output is correct |
4 |
Correct |
5 ms |
512 KB |
Output is correct |
5 |
Correct |
5 ms |
512 KB |
Output is correct |
6 |
Correct |
5 ms |
896 KB |
Output is correct |
7 |
Correct |
5 ms |
640 KB |
Output is correct |
8 |
Correct |
5 ms |
768 KB |
Output is correct |
9 |
Correct |
6 ms |
896 KB |
Output is correct |
10 |
Correct |
4 ms |
384 KB |
Output is correct |
11 |
Correct |
6 ms |
384 KB |
Output is correct |
12 |
Correct |
5 ms |
896 KB |
Output is correct |
13 |
Correct |
13 ms |
1024 KB |
Output is correct |
14 |
Correct |
5 ms |
512 KB |
Output is correct |
15 |
Correct |
5 ms |
640 KB |
Output is correct |
16 |
Correct |
5 ms |
1024 KB |
Output is correct |
17 |
Correct |
5 ms |
1024 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
512 KB |
Output is correct |
2 |
Correct |
4 ms |
512 KB |
Output is correct |
3 |
Correct |
5 ms |
768 KB |
Output is correct |
4 |
Correct |
5 ms |
512 KB |
Output is correct |
5 |
Correct |
5 ms |
512 KB |
Output is correct |
6 |
Correct |
5 ms |
896 KB |
Output is correct |
7 |
Correct |
5 ms |
640 KB |
Output is correct |
8 |
Correct |
5 ms |
768 KB |
Output is correct |
9 |
Correct |
6 ms |
896 KB |
Output is correct |
10 |
Correct |
4 ms |
384 KB |
Output is correct |
11 |
Correct |
6 ms |
384 KB |
Output is correct |
12 |
Correct |
5 ms |
896 KB |
Output is correct |
13 |
Correct |
13 ms |
1024 KB |
Output is correct |
14 |
Correct |
5 ms |
512 KB |
Output is correct |
15 |
Correct |
5 ms |
640 KB |
Output is correct |
16 |
Correct |
5 ms |
1024 KB |
Output is correct |
17 |
Correct |
5 ms |
1024 KB |
Output is correct |
18 |
Correct |
5 ms |
1152 KB |
Output is correct |
19 |
Correct |
5 ms |
768 KB |
Output is correct |
20 |
Correct |
5 ms |
1024 KB |
Output is correct |
21 |
Correct |
5 ms |
1152 KB |
Output is correct |
22 |
Correct |
5 ms |
768 KB |
Output is correct |
23 |
Correct |
5 ms |
1280 KB |
Output is correct |
24 |
Correct |
5 ms |
1024 KB |
Output is correct |
25 |
Correct |
5 ms |
1152 KB |
Output is correct |
26 |
Correct |
5 ms |
1152 KB |
Output is correct |
27 |
Correct |
5 ms |
640 KB |
Output is correct |
28 |
Correct |
5 ms |
768 KB |
Output is correct |
29 |
Correct |
5 ms |
1280 KB |
Output is correct |
30 |
Correct |
5 ms |
1280 KB |
Output is correct |
31 |
Correct |
5 ms |
1152 KB |
Output is correct |
32 |
Correct |
5 ms |
1024 KB |
Output is correct |
33 |
Correct |
5 ms |
1280 KB |
Output is correct |
34 |
Correct |
5 ms |
1280 KB |
Output is correct |
35 |
Correct |
5 ms |
1280 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
512 KB |
Output is correct |
2 |
Correct |
4 ms |
512 KB |
Output is correct |
3 |
Correct |
5 ms |
768 KB |
Output is correct |
4 |
Correct |
5 ms |
512 KB |
Output is correct |
5 |
Correct |
5 ms |
512 KB |
Output is correct |
6 |
Correct |
5 ms |
896 KB |
Output is correct |
7 |
Correct |
5 ms |
640 KB |
Output is correct |
8 |
Correct |
5 ms |
768 KB |
Output is correct |
9 |
Correct |
6 ms |
896 KB |
Output is correct |
10 |
Correct |
4 ms |
384 KB |
Output is correct |
11 |
Correct |
6 ms |
384 KB |
Output is correct |
12 |
Correct |
5 ms |
896 KB |
Output is correct |
13 |
Correct |
13 ms |
1024 KB |
Output is correct |
14 |
Correct |
5 ms |
512 KB |
Output is correct |
15 |
Correct |
5 ms |
640 KB |
Output is correct |
16 |
Correct |
5 ms |
1024 KB |
Output is correct |
17 |
Correct |
5 ms |
1024 KB |
Output is correct |
18 |
Correct |
106 ms |
105720 KB |
Output is correct |
19 |
Correct |
69 ms |
64248 KB |
Output is correct |
20 |
Correct |
29 ms |
34432 KB |
Output is correct |
21 |
Correct |
57 ms |
60664 KB |
Output is correct |
22 |
Correct |
78 ms |
78560 KB |
Output is correct |
23 |
Correct |
26 ms |
29312 KB |
Output is correct |
24 |
Correct |
20 ms |
23040 KB |
Output is correct |
25 |
Correct |
25 ms |
28672 KB |
Output is correct |
26 |
Correct |
11 ms |
11136 KB |
Output is correct |
27 |
Correct |
27 ms |
29952 KB |
Output is correct |
28 |
Correct |
19 ms |
21376 KB |
Output is correct |
29 |
Correct |
28 ms |
30592 KB |
Output is correct |
30 |
Correct |
21 ms |
24192 KB |
Output is correct |
31 |
Correct |
26 ms |
28672 KB |
Output is correct |
32 |
Correct |
14 ms |
15232 KB |
Output is correct |
33 |
Correct |
25 ms |
28664 KB |
Output is correct |
34 |
Correct |
10 ms |
10368 KB |
Output is correct |
35 |
Correct |
25 ms |
28152 KB |
Output is correct |
36 |
Correct |
12 ms |
13440 KB |
Output is correct |
37 |
Correct |
26 ms |
29952 KB |
Output is correct |
38 |
Correct |
16 ms |
16512 KB |
Output is correct |
39 |
Correct |
27 ms |
31232 KB |
Output is correct |
40 |
Correct |
16 ms |
18432 KB |
Output is correct |
41 |
Correct |
148 ms |
130424 KB |
Output is correct |
42 |
Correct |
102 ms |
87928 KB |
Output is correct |
43 |
Correct |
139 ms |
130296 KB |
Output is correct |
44 |
Correct |
84 ms |
86904 KB |
Output is correct |
45 |
Correct |
141 ms |
130300 KB |
Output is correct |
46 |
Correct |
84 ms |
87928 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
512 KB |
Output is correct |
2 |
Correct |
4 ms |
512 KB |
Output is correct |
3 |
Correct |
5 ms |
768 KB |
Output is correct |
4 |
Correct |
5 ms |
512 KB |
Output is correct |
5 |
Correct |
5 ms |
512 KB |
Output is correct |
6 |
Correct |
5 ms |
896 KB |
Output is correct |
7 |
Correct |
5 ms |
640 KB |
Output is correct |
8 |
Correct |
5 ms |
768 KB |
Output is correct |
9 |
Correct |
6 ms |
896 KB |
Output is correct |
10 |
Correct |
4 ms |
384 KB |
Output is correct |
11 |
Correct |
6 ms |
384 KB |
Output is correct |
12 |
Correct |
5 ms |
896 KB |
Output is correct |
13 |
Correct |
13 ms |
1024 KB |
Output is correct |
14 |
Correct |
5 ms |
512 KB |
Output is correct |
15 |
Correct |
5 ms |
640 KB |
Output is correct |
16 |
Correct |
5 ms |
1024 KB |
Output is correct |
17 |
Correct |
5 ms |
1024 KB |
Output is correct |
18 |
Correct |
5 ms |
1152 KB |
Output is correct |
19 |
Correct |
5 ms |
768 KB |
Output is correct |
20 |
Correct |
5 ms |
1024 KB |
Output is correct |
21 |
Correct |
5 ms |
1152 KB |
Output is correct |
22 |
Correct |
5 ms |
768 KB |
Output is correct |
23 |
Correct |
5 ms |
1280 KB |
Output is correct |
24 |
Correct |
5 ms |
1024 KB |
Output is correct |
25 |
Correct |
5 ms |
1152 KB |
Output is correct |
26 |
Correct |
5 ms |
1152 KB |
Output is correct |
27 |
Correct |
5 ms |
640 KB |
Output is correct |
28 |
Correct |
5 ms |
768 KB |
Output is correct |
29 |
Correct |
5 ms |
1280 KB |
Output is correct |
30 |
Correct |
5 ms |
1280 KB |
Output is correct |
31 |
Correct |
5 ms |
1152 KB |
Output is correct |
32 |
Correct |
5 ms |
1024 KB |
Output is correct |
33 |
Correct |
5 ms |
1280 KB |
Output is correct |
34 |
Correct |
5 ms |
1280 KB |
Output is correct |
35 |
Correct |
5 ms |
1280 KB |
Output is correct |
36 |
Correct |
106 ms |
105720 KB |
Output is correct |
37 |
Correct |
69 ms |
64248 KB |
Output is correct |
38 |
Correct |
29 ms |
34432 KB |
Output is correct |
39 |
Correct |
57 ms |
60664 KB |
Output is correct |
40 |
Correct |
78 ms |
78560 KB |
Output is correct |
41 |
Correct |
26 ms |
29312 KB |
Output is correct |
42 |
Correct |
20 ms |
23040 KB |
Output is correct |
43 |
Correct |
25 ms |
28672 KB |
Output is correct |
44 |
Correct |
11 ms |
11136 KB |
Output is correct |
45 |
Correct |
27 ms |
29952 KB |
Output is correct |
46 |
Correct |
19 ms |
21376 KB |
Output is correct |
47 |
Correct |
28 ms |
30592 KB |
Output is correct |
48 |
Correct |
21 ms |
24192 KB |
Output is correct |
49 |
Correct |
26 ms |
28672 KB |
Output is correct |
50 |
Correct |
14 ms |
15232 KB |
Output is correct |
51 |
Correct |
25 ms |
28664 KB |
Output is correct |
52 |
Correct |
10 ms |
10368 KB |
Output is correct |
53 |
Correct |
25 ms |
28152 KB |
Output is correct |
54 |
Correct |
12 ms |
13440 KB |
Output is correct |
55 |
Correct |
26 ms |
29952 KB |
Output is correct |
56 |
Correct |
16 ms |
16512 KB |
Output is correct |
57 |
Correct |
27 ms |
31232 KB |
Output is correct |
58 |
Correct |
16 ms |
18432 KB |
Output is correct |
59 |
Correct |
148 ms |
130424 KB |
Output is correct |
60 |
Correct |
102 ms |
87928 KB |
Output is correct |
61 |
Correct |
139 ms |
130296 KB |
Output is correct |
62 |
Correct |
84 ms |
86904 KB |
Output is correct |
63 |
Correct |
141 ms |
130300 KB |
Output is correct |
64 |
Correct |
84 ms |
87928 KB |
Output is correct |
65 |
Correct |
127 ms |
117624 KB |
Output is correct |
66 |
Correct |
121 ms |
108024 KB |
Output is correct |
67 |
Correct |
105 ms |
103416 KB |
Output is correct |
68 |
Correct |
99 ms |
95424 KB |
Output is correct |
69 |
Correct |
122 ms |
116472 KB |
Output is correct |
70 |
Correct |
116 ms |
111592 KB |
Output is correct |
71 |
Correct |
113 ms |
112760 KB |
Output is correct |
72 |
Correct |
130 ms |
114044 KB |
Output is correct |
73 |
Correct |
105 ms |
105720 KB |
Output is correct |
74 |
Correct |
99 ms |
98808 KB |
Output is correct |
75 |
Correct |
109 ms |
109176 KB |
Output is correct |
76 |
Correct |
138 ms |
125176 KB |
Output is correct |
77 |
Correct |
127 ms |
125176 KB |
Output is correct |
78 |
Correct |
100 ms |
96560 KB |
Output is correct |
79 |
Correct |
101 ms |
99964 KB |
Output is correct |
80 |
Correct |
132 ms |
122616 KB |
Output is correct |
81 |
Correct |
103 ms |
101116 KB |
Output is correct |
82 |
Correct |
111 ms |
106872 KB |
Output is correct |
83 |
Correct |
137 ms |
130296 KB |
Output is correct |
84 |
Correct |
113 ms |
111608 KB |
Output is correct |
85 |
Correct |
135 ms |
121440 KB |
Output is correct |
86 |
Correct |
121 ms |
118904 KB |
Output is correct |
87 |
Correct |
119 ms |
109176 KB |
Output is correct |
88 |
Correct |
150 ms |
131532 KB |
Output is correct |
89 |
Correct |
146 ms |
131748 KB |
Output is correct |
90 |
Correct |
113 ms |
110456 KB |
Output is correct |
91 |
Correct |
152 ms |
131576 KB |
Output is correct |
92 |
Correct |
150 ms |
131576 KB |
Output is correct |
93 |
Correct |
149 ms |
129144 KB |
Output is correct |