#include <bits/stdc++.h>
using namespace std;
const int INF = 1e9 + 1;
void chmin(int& a, int b) {
a = min(a, b);
}
void solve() {
int N, P;
cin >> N >> P;
vector<int> X(N), T(N);
for (int &v : X) {
cin >> v;
}
for (int &v : T) {
cin >> v;
}
X.insert(X.begin(), 0);
T.insert(T.begin(), 0);
N++;
vector dp(N, vector(N, vector(N, vector(2, INF))));
dp[0][0][0][0] = 0;
for (int len = 0; len < N - 1; len++) {
for (int L = 0; L < N; L++) {
int R = (L + len) % N;
for (int ans = 0; ans < N; ans++) {
for (int w = 0; w < 2; w++) {
int time = dp[L][R][ans][w];
if (w == 0) {
{
int delta = (X[L] - X[(L + N - 1) % N] + P) % P;
int add = time + delta <= T[(L + N - 1) % N];
chmin(dp[(L + N - 1) % N][R][ans + add][0], time + delta);
}
{
int delta = (X[(R + 1) % N] - X[L] + P) % P;
int add = time + delta <= T[(R + 1) % N];
chmin(dp[L][(R + 1) % N][ans + add][1], time + delta);
}
} else {
{
int delta = (X[R] - X[(L + N - 1) % N] + P) % P;
int add = time + delta <= T[(L + N - 1) % N];
chmin(dp[(L + N - 1) % N][R][ans + add][0], time + delta);
}
{
int delta = (X[(R + 1) % N] - X[R] + P) % P;
int add = time + delta <= T[(R + 1) % N];
chmin(dp[L][(R + 1) % N][ans + add][1], time + delta);
}
}
}
}
}
}
int res = 0;
for (int L = 0; L < N; L++) {
for (int R = 0; R < N; R++) {
for (int ans = 0; ans < N; ans++) {
for (int w = 0; w < 2; w++) {
if (dp[L][R][ans][w] != INF) {
res = max(res, ans);
}
}
}
}
}
cout << res << "\n";
}
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
solve();
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
320 KB |
Output is correct |
15 |
Correct |
1 ms |
384 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
320 KB |
Output is correct |
15 |
Correct |
1 ms |
384 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
1 ms |
468 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
21 |
Correct |
1 ms |
468 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
468 KB |
Output is correct |
24 |
Correct |
1 ms |
468 KB |
Output is correct |
25 |
Correct |
1 ms |
468 KB |
Output is correct |
26 |
Correct |
1 ms |
448 KB |
Output is correct |
27 |
Correct |
1 ms |
320 KB |
Output is correct |
28 |
Correct |
1 ms |
340 KB |
Output is correct |
29 |
Correct |
1 ms |
468 KB |
Output is correct |
30 |
Correct |
1 ms |
468 KB |
Output is correct |
31 |
Correct |
1 ms |
468 KB |
Output is correct |
32 |
Correct |
1 ms |
468 KB |
Output is correct |
33 |
Correct |
1 ms |
468 KB |
Output is correct |
34 |
Correct |
1 ms |
572 KB |
Output is correct |
35 |
Correct |
2 ms |
444 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
320 KB |
Output is correct |
15 |
Correct |
1 ms |
384 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
738 ms |
323040 KB |
Output is correct |
19 |
Correct |
354 ms |
152520 KB |
Output is correct |
20 |
Correct |
132 ms |
59328 KB |
Output is correct |
21 |
Correct |
309 ms |
139896 KB |
Output is correct |
22 |
Correct |
412 ms |
206336 KB |
Output is correct |
23 |
Correct |
111 ms |
46648 KB |
Output is correct |
24 |
Correct |
74 ms |
32148 KB |
Output is correct |
25 |
Correct |
100 ms |
45080 KB |
Output is correct |
26 |
Correct |
25 ms |
10688 KB |
Output is correct |
27 |
Correct |
105 ms |
48064 KB |
Output is correct |
28 |
Correct |
65 ms |
28964 KB |
Output is correct |
29 |
Correct |
114 ms |
49696 KB |
Output is correct |
30 |
Correct |
79 ms |
34584 KB |
Output is correct |
31 |
Correct |
101 ms |
45092 KB |
Output is correct |
32 |
Correct |
41 ms |
17092 KB |
Output is correct |
33 |
Correct |
104 ms |
45132 KB |
Output is correct |
34 |
Correct |
20 ms |
9684 KB |
Output is correct |
35 |
Correct |
95 ms |
43776 KB |
Output is correct |
36 |
Correct |
35 ms |
14364 KB |
Output is correct |
37 |
Correct |
122 ms |
48056 KB |
Output is correct |
38 |
Correct |
46 ms |
19496 KB |
Output is correct |
39 |
Correct |
116 ms |
51140 KB |
Output is correct |
40 |
Correct |
53 ms |
22972 KB |
Output is correct |
41 |
Correct |
979 ms |
442448 KB |
Output is correct |
42 |
Correct |
603 ms |
244544 KB |
Output is correct |
43 |
Correct |
939 ms |
442444 KB |
Output is correct |
44 |
Correct |
544 ms |
239800 KB |
Output is correct |
45 |
Correct |
943 ms |
442464 KB |
Output is correct |
46 |
Correct |
511 ms |
244428 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
320 KB |
Output is correct |
15 |
Correct |
1 ms |
384 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
1 ms |
468 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
21 |
Correct |
1 ms |
468 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
468 KB |
Output is correct |
24 |
Correct |
1 ms |
468 KB |
Output is correct |
25 |
Correct |
1 ms |
468 KB |
Output is correct |
26 |
Correct |
1 ms |
448 KB |
Output is correct |
27 |
Correct |
1 ms |
320 KB |
Output is correct |
28 |
Correct |
1 ms |
340 KB |
Output is correct |
29 |
Correct |
1 ms |
468 KB |
Output is correct |
30 |
Correct |
1 ms |
468 KB |
Output is correct |
31 |
Correct |
1 ms |
468 KB |
Output is correct |
32 |
Correct |
1 ms |
468 KB |
Output is correct |
33 |
Correct |
1 ms |
468 KB |
Output is correct |
34 |
Correct |
1 ms |
572 KB |
Output is correct |
35 |
Correct |
2 ms |
444 KB |
Output is correct |
36 |
Correct |
738 ms |
323040 KB |
Output is correct |
37 |
Correct |
354 ms |
152520 KB |
Output is correct |
38 |
Correct |
132 ms |
59328 KB |
Output is correct |
39 |
Correct |
309 ms |
139896 KB |
Output is correct |
40 |
Correct |
412 ms |
206336 KB |
Output is correct |
41 |
Correct |
111 ms |
46648 KB |
Output is correct |
42 |
Correct |
74 ms |
32148 KB |
Output is correct |
43 |
Correct |
100 ms |
45080 KB |
Output is correct |
44 |
Correct |
25 ms |
10688 KB |
Output is correct |
45 |
Correct |
105 ms |
48064 KB |
Output is correct |
46 |
Correct |
65 ms |
28964 KB |
Output is correct |
47 |
Correct |
114 ms |
49696 KB |
Output is correct |
48 |
Correct |
79 ms |
34584 KB |
Output is correct |
49 |
Correct |
101 ms |
45092 KB |
Output is correct |
50 |
Correct |
41 ms |
17092 KB |
Output is correct |
51 |
Correct |
104 ms |
45132 KB |
Output is correct |
52 |
Correct |
20 ms |
9684 KB |
Output is correct |
53 |
Correct |
95 ms |
43776 KB |
Output is correct |
54 |
Correct |
35 ms |
14364 KB |
Output is correct |
55 |
Correct |
122 ms |
48056 KB |
Output is correct |
56 |
Correct |
46 ms |
19496 KB |
Output is correct |
57 |
Correct |
116 ms |
51140 KB |
Output is correct |
58 |
Correct |
53 ms |
22972 KB |
Output is correct |
59 |
Correct |
979 ms |
442448 KB |
Output is correct |
60 |
Correct |
603 ms |
244544 KB |
Output is correct |
61 |
Correct |
939 ms |
442444 KB |
Output is correct |
62 |
Correct |
544 ms |
239800 KB |
Output is correct |
63 |
Correct |
943 ms |
442464 KB |
Output is correct |
64 |
Correct |
511 ms |
244428 KB |
Output is correct |
65 |
Correct |
848 ms |
379604 KB |
Output is correct |
66 |
Correct |
742 ms |
333780 KB |
Output is correct |
67 |
Correct |
741 ms |
312336 KB |
Output is correct |
68 |
Correct |
639 ms |
276832 KB |
Output is correct |
69 |
Correct |
860 ms |
373340 KB |
Output is correct |
70 |
Correct |
797 ms |
350320 KB |
Output is correct |
71 |
Correct |
818 ms |
356232 KB |
Output is correct |
72 |
Correct |
770 ms |
361656 KB |
Output is correct |
73 |
Correct |
688 ms |
322948 KB |
Output is correct |
74 |
Correct |
642 ms |
291788 KB |
Output is correct |
75 |
Correct |
738 ms |
339068 KB |
Output is correct |
76 |
Correct |
892 ms |
416520 KB |
Output is correct |
77 |
Correct |
920 ms |
416520 KB |
Output is correct |
78 |
Correct |
601 ms |
281928 KB |
Output is correct |
79 |
Correct |
638 ms |
296624 KB |
Output is correct |
80 |
Correct |
850 ms |
404008 KB |
Output is correct |
81 |
Correct |
636 ms |
301972 KB |
Output is correct |
82 |
Correct |
710 ms |
328108 KB |
Output is correct |
83 |
Correct |
947 ms |
442344 KB |
Output is correct |
84 |
Correct |
750 ms |
350216 KB |
Output is correct |
85 |
Correct |
855 ms |
397452 KB |
Output is correct |
86 |
Correct |
855 ms |
385320 KB |
Output is correct |
87 |
Correct |
731 ms |
339020 KB |
Output is correct |
88 |
Correct |
953 ms |
448644 KB |
Output is correct |
89 |
Correct |
964 ms |
448796 KB |
Output is correct |
90 |
Correct |
748 ms |
344908 KB |
Output is correct |
91 |
Correct |
950 ms |
448776 KB |
Output is correct |
92 |
Correct |
968 ms |
448776 KB |
Output is correct |
93 |
Correct |
917 ms |
435580 KB |
Output is correct |