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Submission #1109994

# Submission time Handle Problem Language Result Execution time Memory
1109994 2024-11-08T11:45:23 Z DobromirAngelov Collecting Stamps 3 (JOI20_ho_t3) C++14
100 / 100
 35 ms 66896 KB 
#include<bits/stdc++.h>
#define endl '\n'

using namespace std;

const int MAXN=205;
const int INF=1e9+5;

int n,L;
int x[MAXN];
int t[MAXN];
int dp[MAXN][MAXN][MAXN][2];

int main()
{
ios::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);

cin>>n>>L;
for(int i=1;i<=n;i++) cin>>x[i];
for(int i=1;i<=n;i++) cin>>t[i];

for(int i=0;i<=n+1;i++)
    for(int j=0;j<=n+1;j++)
        for(int k=0;k<=n+1;k++)
            dp[i][j][k][0]=dp[i][j][k][1]=INF;
dp[0][n+1][0][0]=dp[0][n+1][0][1]=0;

int ans=0;
for(int s=1;s<=n;s++)
{
    for(int i=0;i<=s;i++)
    {
        int j=n-(s-i)+1;
        for(int cnt=0;cnt<=s;cnt++)
        {
            if(i>0)
            {
                int time=dp[i-1][j][cnt][0];
                int add=abs(x[i-1]-x[i]); add=min(add, L-add);
                if(time+add<=t[i]) dp[i][j][cnt+1][0]=min(dp[i][j][cnt+1][0], time+add);
                else dp[i][j][cnt][0]=min(dp[i][j][cnt][0], time+add);

                time=dp[i-1][j][cnt][1];
                add=abs(x[i]-x[j]); add=min(add, L-add);
                if(time+add<=t[i]) dp[i][j][cnt+1][0]=min(dp[i][j][cnt+1][0], time+add);
                else dp[i][j][cnt][0]=min(dp[i][j][cnt][0], time+add);
            }
            if(j<n+1)
            {
                int time=dp[i][j+1][cnt][0];
                int add=abs(x[j]-x[i]); add=min(add, L-add);
                if(time+add<=t[j]) dp[i][j][cnt+1][1]=min(dp[i][j][cnt+1][1], time+add);
                else dp[i][j][cnt][1]=min(dp[i][j][cnt][1], time+add);

                time=dp[i][j+1][cnt][1];
                add=abs(x[j]-x[j+1]); add=min(add, L-add);
                if(time+add<=t[j]) dp[i][j][cnt+1][1]=min(dp[i][j][cnt+1][1], time+add);
                else dp[i][j][cnt][1]=min(dp[i][j][cnt][1], time+add);
            }
            if(dp[i][j][cnt][0]<INF || dp[i][j][cnt][1]<INF) ans=max(ans, cnt);
        }
    }
}

cout<<ans<<endl;

return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 1 ms 2384 KB Output is correct
3 Correct 2 ms 4432 KB Output is correct
4 Correct 2 ms 4612 KB Output is correct
5 Correct 1 ms 4432 KB Output is correct
6 Correct 1 ms 6480 KB Output is correct
7 Correct 1 ms 4432 KB Output is correct
8 Correct 1 ms 4432 KB Output is correct
9 Correct 2 ms 6480 KB Output is correct
10 Correct 1 ms 2384 KB Output is correct
11 Correct 1 ms 2384 KB Output is correct
12 Correct 1 ms 6652 KB Output is correct
13 Correct 2 ms 6480 KB Output is correct
14 Correct 1 ms 4432 KB Output is correct
15 Correct 1 ms 4604 KB Output is correct
16 Correct 1 ms 6480 KB Output is correct
17 Correct 2 ms 6648 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 1 ms 2384 KB Output is correct
3 Correct 2 ms 4432 KB Output is correct
4 Correct 2 ms 4612 KB Output is correct
5 Correct 1 ms 4432 KB Output is correct
6 Correct 1 ms 6480 KB Output is correct
7 Correct 1 ms 4432 KB Output is correct
8 Correct 1 ms 4432 KB Output is correct
9 Correct 2 ms 6480 KB Output is correct
10 Correct 1 ms 2384 KB Output is correct
11 Correct 1 ms 2384 KB Output is correct
12 Correct 1 ms 6652 KB Output is correct
13 Correct 2 ms 6480 KB Output is correct
14 Correct 1 ms 4432 KB Output is correct
15 Correct 1 ms 4604 KB Output is correct
16 Correct 1 ms 6480 KB Output is correct
17 Correct 2 ms 6648 KB Output is correct
18 Correct 1 ms 6480 KB Output is correct
19 Correct 1 ms 4432 KB Output is correct
20 Correct 1 ms 6480 KB Output is correct
21 Correct 1 ms 6480 KB Output is correct
22 Correct 1 ms 4444 KB Output is correct
23 Correct 1 ms 6480 KB Output is correct
24 Correct 1 ms 6480 KB Output is correct
25 Correct 1 ms 6480 KB Output is correct
26 Correct 1 ms 6480 KB Output is correct
27 Correct 1 ms 4432 KB Output is correct
28 Correct 1 ms 4432 KB Output is correct
29 Correct 1 ms 6480 KB Output is correct
30 Correct 1 ms 6480 KB Output is correct
31 Correct 1 ms 6480 KB Output is correct
32 Correct 2 ms 6480 KB Output is correct
33 Correct 1 ms 6480 KB Output is correct
34 Correct 1 ms 6480 KB Output is correct
35 Correct 1 ms 6480 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 1 ms 2384 KB Output is correct
3 Correct 2 ms 4432 KB Output is correct
4 Correct 2 ms 4612 KB Output is correct
5 Correct 1 ms 4432 KB Output is correct
6 Correct 1 ms 6480 KB Output is correct
7 Correct 1 ms 4432 KB Output is correct
8 Correct 1 ms 4432 KB Output is correct
9 Correct 2 ms 6480 KB Output is correct
10 Correct 1 ms 2384 KB Output is correct
11 Correct 1 ms 2384 KB Output is correct
12 Correct 1 ms 6652 KB Output is correct
13 Correct 2 ms 6480 KB Output is correct
14 Correct 1 ms 4432 KB Output is correct
15 Correct 1 ms 4604 KB Output is correct
16 Correct 1 ms 6480 KB Output is correct
17 Correct 2 ms 6648 KB Output is correct
18 Correct 25 ms 59984 KB Output is correct
19 Correct 14 ms 47696 KB Output is correct
20 Correct 7 ms 35408 KB Output is correct
21 Correct 13 ms 45800 KB Output is correct
22 Correct 17 ms 51808 KB Output is correct
23 Correct 7 ms 33360 KB Output is correct
24 Correct 5 ms 29432 KB Output is correct
25 Correct 7 ms 31312 KB Output is correct
26 Correct 3 ms 21072 KB Output is correct
27 Correct 7 ms 33360 KB Output is correct
28 Correct 5 ms 27216 KB Output is correct
29 Correct 7 ms 33360 KB Output is correct
30 Correct 6 ms 29264 KB Output is correct
31 Correct 7 ms 31312 KB Output is correct
32 Correct 4 ms 23120 KB Output is correct
33 Correct 7 ms 31408 KB Output is correct
34 Correct 3 ms 19024 KB Output is correct
35 Correct 6 ms 31356 KB Output is correct
36 Correct 4 ms 23120 KB Output is correct
37 Correct 7 ms 33360 KB Output is correct
38 Correct 5 ms 25168 KB Output is correct
39 Correct 7 ms 33456 KB Output is correct
40 Correct 5 ms 25168 KB Output is correct
41 Correct 34 ms 66468 KB Output is correct
42 Correct 20 ms 56008 KB Output is correct
43 Correct 32 ms 66384 KB Output is correct
44 Correct 19 ms 55888 KB Output is correct
45 Correct 33 ms 66384 KB Output is correct
46 Correct 19 ms 55888 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 1 ms 2384 KB Output is correct
3 Correct 2 ms 4432 KB Output is correct
4 Correct 2 ms 4612 KB Output is correct
5 Correct 1 ms 4432 KB Output is correct
6 Correct 1 ms 6480 KB Output is correct
7 Correct 1 ms 4432 KB Output is correct
8 Correct 1 ms 4432 KB Output is correct
9 Correct 2 ms 6480 KB Output is correct
10 Correct 1 ms 2384 KB Output is correct
11 Correct 1 ms 2384 KB Output is correct
12 Correct 1 ms 6652 KB Output is correct
13 Correct 2 ms 6480 KB Output is correct
14 Correct 1 ms 4432 KB Output is correct
15 Correct 1 ms 4604 KB Output is correct
16 Correct 1 ms 6480 KB Output is correct
17 Correct 2 ms 6648 KB Output is correct
18 Correct 1 ms 6480 KB Output is correct
19 Correct 1 ms 4432 KB Output is correct
20 Correct 1 ms 6480 KB Output is correct
21 Correct 1 ms 6480 KB Output is correct
22 Correct 1 ms 4444 KB Output is correct
23 Correct 1 ms 6480 KB Output is correct
24 Correct 1 ms 6480 KB Output is correct
25 Correct 1 ms 6480 KB Output is correct
26 Correct 1 ms 6480 KB Output is correct
27 Correct 1 ms 4432 KB Output is correct
28 Correct 1 ms 4432 KB Output is correct
29 Correct 1 ms 6480 KB Output is correct
30 Correct 1 ms 6480 KB Output is correct
31 Correct 1 ms 6480 KB Output is correct
32 Correct 2 ms 6480 KB Output is correct
33 Correct 1 ms 6480 KB Output is correct
34 Correct 1 ms 6480 KB Output is correct
35 Correct 1 ms 6480 KB Output is correct
36 Correct 25 ms 59984 KB Output is correct
37 Correct 14 ms 47696 KB Output is correct
38 Correct 7 ms 35408 KB Output is correct
39 Correct 13 ms 45800 KB Output is correct
40 Correct 17 ms 51808 KB Output is correct
41 Correct 7 ms 33360 KB Output is correct
42 Correct 5 ms 29432 KB Output is correct
43 Correct 7 ms 31312 KB Output is correct
44 Correct 3 ms 21072 KB Output is correct
45 Correct 7 ms 33360 KB Output is correct
46 Correct 5 ms 27216 KB Output is correct
47 Correct 7 ms 33360 KB Output is correct
48 Correct 6 ms 29264 KB Output is correct
49 Correct 7 ms 31312 KB Output is correct
50 Correct 4 ms 23120 KB Output is correct
51 Correct 7 ms 31408 KB Output is correct
52 Correct 3 ms 19024 KB Output is correct
53 Correct 6 ms 31356 KB Output is correct
54 Correct 4 ms 23120 KB Output is correct
55 Correct 7 ms 33360 KB Output is correct
56 Correct 5 ms 25168 KB Output is correct
57 Correct 7 ms 33456 KB Output is correct
58 Correct 5 ms 25168 KB Output is correct
59 Correct 34 ms 66468 KB Output is correct
60 Correct 20 ms 56008 KB Output is correct
61 Correct 32 ms 66384 KB Output is correct
62 Correct 19 ms 55888 KB Output is correct
63 Correct 33 ms 66384 KB Output is correct
64 Correct 19 ms 55888 KB Output is correct
65 Correct 27 ms 64152 KB Output is correct
66 Correct 26 ms 62032 KB Output is correct
67 Correct 27 ms 59996 KB Output is correct
68 Correct 24 ms 57936 KB Output is correct
69 Correct 32 ms 64248 KB Output is correct
70 Correct 27 ms 62032 KB Output is correct
71 Correct 26 ms 62032 KB Output is correct
72 Correct 26 ms 64080 KB Output is correct
73 Correct 25 ms 59984 KB Output is correct
74 Correct 23 ms 57936 KB Output is correct
75 Correct 34 ms 62104 KB Output is correct
76 Correct 33 ms 66128 KB Output is correct
77 Correct 30 ms 66128 KB Output is correct
78 Correct 25 ms 58108 KB Output is correct
79 Correct 24 ms 59984 KB Output is correct
80 Correct 34 ms 66128 KB Output is correct
81 Correct 24 ms 59984 KB Output is correct
82 Correct 26 ms 62200 KB Output is correct
83 Correct 33 ms 66592 KB Output is correct
84 Correct 29 ms 62032 KB Output is correct
85 Correct 31 ms 66128 KB Output is correct
86 Correct 31 ms 64080 KB Output is correct
87 Correct 25 ms 62032 KB Output is correct
88 Correct 35 ms 66896 KB Output is correct
89 Correct 32 ms 66896 KB Output is correct
90 Correct 25 ms 62032 KB Output is correct
91 Correct 33 ms 66756 KB Output is correct
92 Correct 32 ms 66896 KB Output is correct
93 Correct 31 ms 66128 KB Output is correct