#include<bits/stdc++.h>
using namespace std;
const int MX = 203;
int n, L;
int pos[MX], T[MX];
map<tuple<int,int,long long>, int>dp;
int MAXT;
int dist(int i, int j) {
int ret = abs(pos[i]-pos[j]);
return min(ret, L-ret);
}
int solve(int i, int j, long long CLOCK) {
if(CLOCK>MAXT) return 0;
if(dp.count({i, j, CLOCK})) return dp[{i, j, CLOCK}];
int ret = 0;
if(i<j) {
if(i<n) ret = max(ret, solve(j, i+1, CLOCK+dist(i, j)));
else ret = max(ret, solve(j, j, CLOCK+dist(i, j)));
if(i<n) ret = max(ret, solve(i+1, j, CLOCK+dist(i, i+1)));
} else if(i>j) {
if(i>1) ret = max(ret, solve(i-1, j, CLOCK+dist(i, i-1)));
if(i>1) ret = max(ret, solve(j, i-1, CLOCK+dist(j, i)));
else ret = max(ret, solve(j, j, CLOCK+dist(j, i)));
}
ret += CLOCK<=T[i];
dp[{i, j, CLOCK}] = ret;
assert(dp.size()<=1000000);
return ret;
}
void PlayGround() {
cin>>n>>L;
for(int i=1; i<=n; ++i) {
cin>>pos[i];
}
for(int i=1; i<=n; ++i) {
cin>>T[i];
MAXT = max(MAXT, T[i]);
}
cout << max(solve(1, n, pos[1]), solve(n, 1, L-pos[n])) << '\n';
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
PlayGround();
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
340 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
216 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
340 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
216 KB |
Output is correct |
15 |
Correct |
0 ms |
212 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 |
340 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
21 |
Correct |
0 ms |
212 KB |
Output is correct |
22 |
Correct |
0 ms |
212 KB |
Output is correct |
23 |
Correct |
21 ms |
3252 KB |
Output is correct |
24 |
Correct |
1 ms |
212 KB |
Output is correct |
25 |
Correct |
10 ms |
1740 KB |
Output is correct |
26 |
Correct |
0 ms |
212 KB |
Output is correct |
27 |
Correct |
0 ms |
340 KB |
Output is correct |
28 |
Correct |
0 ms |
212 KB |
Output is correct |
29 |
Correct |
1 ms |
340 KB |
Output is correct |
30 |
Correct |
0 ms |
340 KB |
Output is correct |
31 |
Correct |
1 ms |
212 KB |
Output is correct |
32 |
Correct |
0 ms |
212 KB |
Output is correct |
33 |
Correct |
2 ms |
468 KB |
Output is correct |
34 |
Correct |
1 ms |
340 KB |
Output is correct |
35 |
Correct |
1 ms |
376 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
340 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
216 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
456 ms |
39548 KB |
Output is correct |
19 |
Correct |
340 ms |
29480 KB |
Output is correct |
20 |
Correct |
105 ms |
12804 KB |
Output is correct |
21 |
Correct |
282 ms |
25404 KB |
Output is correct |
22 |
Correct |
271 ms |
26728 KB |
Output is correct |
23 |
Correct |
252 ms |
20524 KB |
Output is correct |
24 |
Correct |
1 ms |
340 KB |
Output is correct |
25 |
Correct |
224 ms |
20136 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
27 |
Correct |
224 ms |
20428 KB |
Output is correct |
28 |
Correct |
1 ms |
340 KB |
Output is correct |
29 |
Correct |
242 ms |
20688 KB |
Output is correct |
30 |
Correct |
1 ms |
340 KB |
Output is correct |
31 |
Correct |
246 ms |
19832 KB |
Output is correct |
32 |
Correct |
4 ms |
960 KB |
Output is correct |
33 |
Correct |
228 ms |
19384 KB |
Output is correct |
34 |
Correct |
1 ms |
340 KB |
Output is correct |
35 |
Correct |
165 ms |
15820 KB |
Output is correct |
36 |
Correct |
1 ms |
340 KB |
Output is correct |
37 |
Correct |
190 ms |
17808 KB |
Output is correct |
38 |
Correct |
25 ms |
4044 KB |
Output is correct |
39 |
Correct |
237 ms |
20744 KB |
Output is correct |
40 |
Correct |
1 ms |
340 KB |
Output is correct |
41 |
Correct |
450 ms |
39880 KB |
Output is correct |
42 |
Correct |
12 ms |
2132 KB |
Output is correct |
43 |
Correct |
436 ms |
39356 KB |
Output is correct |
44 |
Correct |
17 ms |
2516 KB |
Output is correct |
45 |
Correct |
455 ms |
39916 KB |
Output is correct |
46 |
Correct |
13 ms |
2408 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
340 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
216 KB |
Output is correct |
15 |
Correct |
0 ms |
212 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 |
340 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
21 |
Correct |
0 ms |
212 KB |
Output is correct |
22 |
Correct |
0 ms |
212 KB |
Output is correct |
23 |
Correct |
21 ms |
3252 KB |
Output is correct |
24 |
Correct |
1 ms |
212 KB |
Output is correct |
25 |
Correct |
10 ms |
1740 KB |
Output is correct |
26 |
Correct |
0 ms |
212 KB |
Output is correct |
27 |
Correct |
0 ms |
340 KB |
Output is correct |
28 |
Correct |
0 ms |
212 KB |
Output is correct |
29 |
Correct |
1 ms |
340 KB |
Output is correct |
30 |
Correct |
0 ms |
340 KB |
Output is correct |
31 |
Correct |
1 ms |
212 KB |
Output is correct |
32 |
Correct |
0 ms |
212 KB |
Output is correct |
33 |
Correct |
2 ms |
468 KB |
Output is correct |
34 |
Correct |
1 ms |
340 KB |
Output is correct |
35 |
Correct |
1 ms |
376 KB |
Output is correct |
36 |
Correct |
456 ms |
39548 KB |
Output is correct |
37 |
Correct |
340 ms |
29480 KB |
Output is correct |
38 |
Correct |
105 ms |
12804 KB |
Output is correct |
39 |
Correct |
282 ms |
25404 KB |
Output is correct |
40 |
Correct |
271 ms |
26728 KB |
Output is correct |
41 |
Correct |
252 ms |
20524 KB |
Output is correct |
42 |
Correct |
1 ms |
340 KB |
Output is correct |
43 |
Correct |
224 ms |
20136 KB |
Output is correct |
44 |
Correct |
1 ms |
340 KB |
Output is correct |
45 |
Correct |
224 ms |
20428 KB |
Output is correct |
46 |
Correct |
1 ms |
340 KB |
Output is correct |
47 |
Correct |
242 ms |
20688 KB |
Output is correct |
48 |
Correct |
1 ms |
340 KB |
Output is correct |
49 |
Correct |
246 ms |
19832 KB |
Output is correct |
50 |
Correct |
4 ms |
960 KB |
Output is correct |
51 |
Correct |
228 ms |
19384 KB |
Output is correct |
52 |
Correct |
1 ms |
340 KB |
Output is correct |
53 |
Correct |
165 ms |
15820 KB |
Output is correct |
54 |
Correct |
1 ms |
340 KB |
Output is correct |
55 |
Correct |
190 ms |
17808 KB |
Output is correct |
56 |
Correct |
25 ms |
4044 KB |
Output is correct |
57 |
Correct |
237 ms |
20744 KB |
Output is correct |
58 |
Correct |
1 ms |
340 KB |
Output is correct |
59 |
Correct |
450 ms |
39880 KB |
Output is correct |
60 |
Correct |
12 ms |
2132 KB |
Output is correct |
61 |
Correct |
436 ms |
39356 KB |
Output is correct |
62 |
Correct |
17 ms |
2516 KB |
Output is correct |
63 |
Correct |
455 ms |
39916 KB |
Output is correct |
64 |
Correct |
13 ms |
2408 KB |
Output is correct |
65 |
Runtime error |
523 ms |
127432 KB |
Execution killed with signal 6 |
66 |
Halted |
0 ms |
0 KB |
- |