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Submission #1018743

# Submission time Handle Problem Language Result Execution time Memory
1018743 2024-07-10T09:12:23 Z FIFI_cpp Collecting Stamps 3 (JOI20_ho_t3) C++17
100 / 100
 47 ms 37864 KB 
#include<bits/stdc++.h>
using namespace std;
const int N = 200;
const int inf = 1e9 + 10;
int v[N + 2];
int v2[N + 2];
int dp[N + 3][N + 3][N + 3][2];
int main(){
    int n,nr;
    int ans = 0;
    cin>>n>>nr;
    v[0] = 0;
    v2[0] = 100;
    for(int i = 1;i <= n;i++){
        cin>>v[i];
    }
    for(int i = 1;i <= n;i++){
        cin>>v2[i];
    }
    v[n + 1] = nr;
    v2[n + 1] = 100;
    n+=2;
    for(int i = 0;i <= n;i++){
        for(int j = 0;j <= i;j++){
            for(int k = 0;k <= i;k++){
                for(int p = 0;p <= 1;p++){
                    if(i == 0 && j == 0 && k == 0 && p == 0){
                        dp[i][j][k][p] = 0;
                    }else{
                        dp[i][j][k][p] = inf;
                        int leftid = n - 1 - (i - j);
                        int rightid = j;
                        int dist = v[rightid] + (nr - v[leftid]);
                        if(i == 0 || leftid <= rightid)continue;
                        if(p == 0){
                            if(leftid == n - 1)continue;
                            ///to leftside
                            ///from rightside
                            if(k != 0 && dist + dp[i - 1][j][k - 1][1] <= v2[leftid]){
                                dp[i][j][k][p] = min(dp[i][j][k][p],dist + dp[i - 1][j][k - 1][1]);
                            }else{
                                if(i != k)dp[i][j][k][p] = min(dp[i][j][k][p],dist + dp[i - 1][j][k][1]);
                            }
                            ///from leftside
                            if(k != 0 && dp[i - 1][j][k - 1][0] + v[leftid + 1] - v[leftid] <= v2[leftid]){
                                dp[i][j][k][p] = min(dp[i][j][k][p],dp[i - 1][j][k - 1][0] + v[leftid + 1] - v[leftid]);
                            }else{
                                if(i != k)dp[i][j][k][p] = min(dp[i][j][k][p],dp[i - 1][j][k][0] + v[leftid + 1] - v[leftid]);
                            }
                        }else{
                            if(j == 0 || rightid == n)continue;
                            ///to rightside
                            ///from leftside
                            if(k != 0 && dist + dp[i - 1][j - 1][k - 1][0] <= v2[rightid]){
                                dp[i][j][k][p] = min(dp[i][j][k][p],dist + dp[i - 1][j - 1][k - 1][0]);
                            }else{
                                if(i != k)dp[i][j][k][p] = min(dp[i][j][k][p],dist + dp[i - 1][j - 1][k][0]);
                            }
                            ///from rightside
                            if(k != 0 && (v[rightid] - v[rightid - 1]) + dp[i - 1][j - 1][k - 1][1] <= v2[rightid]){
                                dp[i][j][k][p] = min(dp[i][j][k][p],(v[rightid] - v[rightid - 1]) + dp[i - 1][j - 1][k - 1][1]);
                            }else{
                                if(i != k)dp[i][j][k][p] = min(dp[i][j][k][p],(v[rightid] - v[rightid - 1]) + dp[i - 1][j - 1][k][1]);
                            }
                        }
                        if(dp[i][j][k][p] != inf){
                            ans = max(ans,k);
                        }
                        //cout<<dp[i][j][k][p]<<' '<<i<<' '<<j<<' '<<k<<' '<<p<<' '<<dist<<' '<<leftid<<' '<<v[leftid + 1]<<' '<<v[leftid]<<' '<<(v[rightid] - v[rightid - 1])<<'\n';
                    }
                }
            }
        }
    }
    cout<<ans<<'\n';
    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4440 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 0 ms 4444 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 6600 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 0 ms 2396 KB Output is correct
12 Correct 1 ms 4440 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 0 ms 2652 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4440 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 0 ms 4444 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 6600 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 0 ms 2396 KB Output is correct
12 Correct 1 ms 4440 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 0 ms 2652 KB Output is correct
18 Correct 1 ms 2648 KB Output is correct
19 Correct 1 ms 4444 KB Output is correct
20 Correct 1 ms 2652 KB Output is correct
21 Correct 1 ms 4444 KB Output is correct
22 Correct 1 ms 4444 KB Output is correct
23 Correct 1 ms 2652 KB Output is correct
24 Correct 1 ms 4444 KB Output is correct
25 Correct 0 ms 2652 KB Output is correct
26 Correct 1 ms 2652 KB Output is correct
27 Correct 0 ms 2396 KB Output is correct
28 Correct 0 ms 2396 KB Output is correct
29 Correct 1 ms 4444 KB Output is correct
30 Correct 1 ms 4444 KB Output is correct
31 Correct 1 ms 2652 KB Output is correct
32 Correct 1 ms 4444 KB Output is correct
33 Correct 1 ms 2648 KB Output is correct
34 Correct 1 ms 2652 KB Output is correct
35 Correct 1 ms 4444 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4440 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 0 ms 4444 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 6600 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 0 ms 2396 KB Output is correct
12 Correct 1 ms 4440 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 0 ms 2652 KB Output is correct
18 Correct 31 ms 29268 KB Output is correct
19 Correct 16 ms 20824 KB Output is correct
20 Correct 7 ms 11356 KB Output is correct
21 Correct 15 ms 19804 KB Output is correct
22 Correct 22 ms 24460 KB Output is correct
23 Correct 6 ms 11864 KB Output is correct
24 Correct 5 ms 8280 KB Output is correct
25 Correct 6 ms 11868 KB Output is correct
26 Correct 2 ms 5212 KB Output is correct
27 Correct 6 ms 10208 KB Output is correct
28 Correct 5 ms 9820 KB Output is correct
29 Correct 6 ms 12124 KB Output is correct
30 Correct 5 ms 10588 KB Output is correct
31 Correct 6 ms 11864 KB Output is correct
32 Correct 3 ms 8284 KB Output is correct
33 Correct 6 ms 11816 KB Output is correct
34 Correct 2 ms 7004 KB Output is correct
35 Correct 6 ms 9816 KB Output is correct
36 Correct 3 ms 7780 KB Output is correct
37 Correct 6 ms 10084 KB Output is correct
38 Correct 3 ms 8544 KB Output is correct
39 Correct 6 ms 12408 KB Output is correct
40 Correct 3 ms 7264 KB Output is correct
41 Correct 40 ms 37480 KB Output is correct
42 Correct 23 ms 24936 KB Output is correct
43 Correct 47 ms 35656 KB Output is correct
44 Correct 24 ms 26452 KB Output is correct
45 Correct 44 ms 37604 KB Output is correct
46 Correct 23 ms 26688 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4440 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 0 ms 4444 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 6600 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 0 ms 2396 KB Output is correct
12 Correct 1 ms 4440 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 0 ms 2652 KB Output is correct
18 Correct 1 ms 2648 KB Output is correct
19 Correct 1 ms 4444 KB Output is correct
20 Correct 1 ms 2652 KB Output is correct
21 Correct 1 ms 4444 KB Output is correct
22 Correct 1 ms 4444 KB Output is correct
23 Correct 1 ms 2652 KB Output is correct
24 Correct 1 ms 4444 KB Output is correct
25 Correct 0 ms 2652 KB Output is correct
26 Correct 1 ms 2652 KB Output is correct
27 Correct 0 ms 2396 KB Output is correct
28 Correct 0 ms 2396 KB Output is correct
29 Correct 1 ms 4444 KB Output is correct
30 Correct 1 ms 4444 KB Output is correct
31 Correct 1 ms 2652 KB Output is correct
32 Correct 1 ms 4444 KB Output is correct
33 Correct 1 ms 2648 KB Output is correct
34 Correct 1 ms 2652 KB Output is correct
35 Correct 1 ms 4444 KB Output is correct
36 Correct 31 ms 29268 KB Output is correct
37 Correct 16 ms 20824 KB Output is correct
38 Correct 7 ms 11356 KB Output is correct
39 Correct 15 ms 19804 KB Output is correct
40 Correct 22 ms 24460 KB Output is correct
41 Correct 6 ms 11864 KB Output is correct
42 Correct 5 ms 8280 KB Output is correct
43 Correct 6 ms 11868 KB Output is correct
44 Correct 2 ms 5212 KB Output is correct
45 Correct 6 ms 10208 KB Output is correct
46 Correct 5 ms 9820 KB Output is correct
47 Correct 6 ms 12124 KB Output is correct
48 Correct 5 ms 10588 KB Output is correct
49 Correct 6 ms 11864 KB Output is correct
50 Correct 3 ms 8284 KB Output is correct
51 Correct 6 ms 11816 KB Output is correct
52 Correct 2 ms 7004 KB Output is correct
53 Correct 6 ms 9816 KB Output is correct
54 Correct 3 ms 7780 KB Output is correct
55 Correct 6 ms 10084 KB Output is correct
56 Correct 3 ms 8544 KB Output is correct
57 Correct 6 ms 12408 KB Output is correct
58 Correct 3 ms 7264 KB Output is correct
59 Correct 40 ms 37480 KB Output is correct
60 Correct 23 ms 24936 KB Output is correct
61 Correct 47 ms 35656 KB Output is correct
62 Correct 24 ms 26452 KB Output is correct
63 Correct 44 ms 37604 KB Output is correct
64 Correct 23 ms 26688 KB Output is correct
65 Correct 35 ms 32336 KB Output is correct
66 Correct 31 ms 31832 KB Output is correct
67 Correct 29 ms 30616 KB Output is correct
68 Correct 25 ms 26704 KB Output is correct
69 Correct 35 ms 32084 KB Output is correct
70 Correct 29 ms 32848 KB Output is correct
71 Correct 31 ms 31060 KB Output is correct
72 Correct 31 ms 33372 KB Output is correct
73 Correct 29 ms 31316 KB Output is correct
74 Correct 26 ms 29532 KB Output is correct
75 Correct 30 ms 32324 KB Output is correct
76 Correct 36 ms 34384 KB Output is correct
77 Correct 36 ms 36188 KB Output is correct
78 Correct 26 ms 27016 KB Output is correct
79 Correct 28 ms 29788 KB Output is correct
80 Correct 34 ms 33620 KB Output is correct
81 Correct 28 ms 30044 KB Output is correct
82 Correct 30 ms 31584 KB Output is correct
83 Correct 38 ms 37576 KB Output is correct
84 Correct 35 ms 32852 KB Output is correct
85 Correct 36 ms 33360 KB Output is correct
86 Correct 36 ms 34736 KB Output is correct
87 Correct 45 ms 30372 KB Output is correct
88 Correct 42 ms 35828 KB Output is correct
89 Correct 41 ms 37712 KB Output is correct
90 Correct 30 ms 32596 KB Output is correct
91 Correct 38 ms 37864 KB Output is correct
92 Correct 38 ms 35924 KB Output is correct
93 Correct 38 ms 37208 KB Output is correct