oj.uz

Submission #974956

# Submission time Handle Problem Language Result Execution time Memory
974956 2024-05-04T07:50:24 Z berr Collecting Stamps 3 (JOI20_ho_t3) C++17
100 / 100
 105 ms 134008 KB 
#include <bits/stdc++.h>
using namespace std; 
#define int long long
const int N=205, INF=1e18;
int dp[N][N][2][N];

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    
    int n, L; cin >> n >> L;

    for(int i=0; i<=n+1; i++){
        for(int l=0; l<=n+1; l++){
            for(int j=0; j<2; j++){
                for(int x=0; x<=n+1; x++){
                    dp[i][l][j][x] = INF;
                }
            }
        }
    }    

    vector<int> x(n), t(n);
    for(auto &i: x) cin >> i;
    for(auto &i: t) cin >> i;

    dp[0][0][0][(t[0]>=x[0])]=dp[0][0][1][(t[0]>=x[0])]=x[0];
    dp[n-1][n-1][0][(t[n-1]>=(L-x[n-1]))]=dp[n-1][n-1][1][(t[n-1]>=(L-x[n-1]))]=L-x[n-1];

    auto val=[&](int a, int b){
        int dis;
        if(a==b) return INF;
        if(b<a) dis=x[b]+L-x[a];
        else dis=x[b]-x[a];

        if(a<b) dis=min(dis, x[a]+L-x[b]);
        else dis=min(dis, x[a]-x[b]);

        return dis;
    };
    auto m=[&](int a){
        a%=n; a+=n; a%=n;
        return a;
    };
    int ans=max(t[0]>=x[0], t[n-1]>=(L-x[n-1]));

    for(int i=0; i<n; i++){
        for(int l=0; l<n; l++){
            for(int j=0; j<2; j++){
                for(int x=0; x<n; x++){
                    int r=m(l+i);
                    int v=dp[l][r][j][x];
                    if(v==INF||m(l-1)==r||m(r+1)==l) continue;


                    int dis=val((j==0?l:r), m(l-1));   
                    int nex=x+((v+dis)<=t[m(l-1)]);
                    ans=max(ans, nex);
                    dp[m(l-1)][r][0][nex]=min(dp[m(l-1)][r][0][nex], v+dis); 

                    dis=val((j==0?l:r), m(r+1));
                    nex=x+((v+dis)<=t[m(r+1)]);
                    ans=max(ans, nex);
                    dp[l][m(r+1)][1][nex]=min(dp[l][m(r+1)][1][nex], v+dis);        
                }
            }
        }
    }

    cout<<ans;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 2 ms 4444 KB Output is correct
3 Correct 1 ms 8536 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6488 KB Output is correct
6 Correct 1 ms 10588 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 4 ms 8948 KB Output is correct
9 Correct 2 ms 10840 KB Output is correct
10 Correct 1 ms 2648 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 10704 KB Output is correct
13 Correct 2 ms 10588 KB Output is correct
14 Correct 1 ms 6492 KB Output is correct
15 Correct 1 ms 6492 KB Output is correct
16 Correct 2 ms 10588 KB Output is correct
17 Correct 3 ms 10588 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 2 ms 4444 KB Output is correct
3 Correct 1 ms 8536 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6488 KB Output is correct
6 Correct 1 ms 10588 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 4 ms 8948 KB Output is correct
9 Correct 2 ms 10840 KB Output is correct
10 Correct 1 ms 2648 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 10704 KB Output is correct
13 Correct 2 ms 10588 KB Output is correct
14 Correct 1 ms 6492 KB Output is correct
15 Correct 1 ms 6492 KB Output is correct
16 Correct 2 ms 10588 KB Output is correct
17 Correct 3 ms 10588 KB Output is correct
18 Correct 2 ms 10588 KB Output is correct
19 Correct 1 ms 8540 KB Output is correct
20 Correct 2 ms 10840 KB Output is correct
21 Correct 2 ms 10588 KB Output is correct
22 Correct 1 ms 8540 KB Output is correct
23 Correct 2 ms 12636 KB Output is correct
24 Correct 2 ms 10588 KB Output is correct
25 Correct 2 ms 10752 KB Output is correct
26 Correct 2 ms 10584 KB Output is correct
27 Correct 1 ms 6492 KB Output is correct
28 Correct 1 ms 8540 KB Output is correct
29 Correct 2 ms 12636 KB Output is correct
30 Correct 2 ms 12636 KB Output is correct
31 Correct 2 ms 10588 KB Output is correct
32 Correct 1 ms 10588 KB Output is correct
33 Correct 2 ms 12636 KB Output is correct
34 Correct 2 ms 12636 KB Output is correct
35 Correct 2 ms 12636 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 2 ms 4444 KB Output is correct
3 Correct 1 ms 8536 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6488 KB Output is correct
6 Correct 1 ms 10588 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 4 ms 8948 KB Output is correct
9 Correct 2 ms 10840 KB Output is correct
10 Correct 1 ms 2648 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 10704 KB Output is correct
13 Correct 2 ms 10588 KB Output is correct
14 Correct 1 ms 6492 KB Output is correct
15 Correct 1 ms 6492 KB Output is correct
16 Correct 2 ms 10588 KB Output is correct
17 Correct 3 ms 10588 KB Output is correct
18 Correct 102 ms 119516 KB Output is correct
19 Correct 38 ms 94808 KB Output is correct
20 Correct 19 ms 68188 KB Output is correct
21 Correct 32 ms 90716 KB Output is correct
22 Correct 46 ms 103004 KB Output is correct
23 Correct 20 ms 64088 KB Output is correct
24 Correct 12 ms 55900 KB Output is correct
25 Correct 19 ms 62328 KB Output is correct
26 Correct 7 ms 39516 KB Output is correct
27 Correct 20 ms 64092 KB Output is correct
28 Correct 11 ms 53988 KB Output is correct
29 Correct 17 ms 64092 KB Output is correct
30 Correct 12 ms 57944 KB Output is correct
31 Correct 17 ms 62044 KB Output is correct
32 Correct 9 ms 45656 KB Output is correct
33 Correct 17 ms 62044 KB Output is correct
34 Correct 6 ms 37468 KB Output is correct
35 Correct 14 ms 62296 KB Output is correct
36 Correct 7 ms 43612 KB Output is correct
37 Correct 15 ms 64212 KB Output is correct
38 Correct 9 ms 47708 KB Output is correct
39 Correct 15 ms 66140 KB Output is correct
40 Correct 9 ms 49756 KB Output is correct
41 Correct 88 ms 133828 KB Output is correct
42 Correct 29 ms 109148 KB Output is correct
43 Correct 87 ms 134000 KB Output is correct
44 Correct 26 ms 109144 KB Output is correct
45 Correct 83 ms 133968 KB Output is correct
46 Correct 27 ms 109144 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 2 ms 4444 KB Output is correct
3 Correct 1 ms 8536 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6488 KB Output is correct
6 Correct 1 ms 10588 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 4 ms 8948 KB Output is correct
9 Correct 2 ms 10840 KB Output is correct
10 Correct 1 ms 2648 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 10704 KB Output is correct
13 Correct 2 ms 10588 KB Output is correct
14 Correct 1 ms 6492 KB Output is correct
15 Correct 1 ms 6492 KB Output is correct
16 Correct 2 ms 10588 KB Output is correct
17 Correct 3 ms 10588 KB Output is correct
18 Correct 2 ms 10588 KB Output is correct
19 Correct 1 ms 8540 KB Output is correct
20 Correct 2 ms 10840 KB Output is correct
21 Correct 2 ms 10588 KB Output is correct
22 Correct 1 ms 8540 KB Output is correct
23 Correct 2 ms 12636 KB Output is correct
24 Correct 2 ms 10588 KB Output is correct
25 Correct 2 ms 10752 KB Output is correct
26 Correct 2 ms 10584 KB Output is correct
27 Correct 1 ms 6492 KB Output is correct
28 Correct 1 ms 8540 KB Output is correct
29 Correct 2 ms 12636 KB Output is correct
30 Correct 2 ms 12636 KB Output is correct
31 Correct 2 ms 10588 KB Output is correct
32 Correct 1 ms 10588 KB Output is correct
33 Correct 2 ms 12636 KB Output is correct
34 Correct 2 ms 12636 KB Output is correct
35 Correct 2 ms 12636 KB Output is correct
36 Correct 102 ms 119516 KB Output is correct
37 Correct 38 ms 94808 KB Output is correct
38 Correct 19 ms 68188 KB Output is correct
39 Correct 32 ms 90716 KB Output is correct
40 Correct 46 ms 103004 KB Output is correct
41 Correct 20 ms 64088 KB Output is correct
42 Correct 12 ms 55900 KB Output is correct
43 Correct 19 ms 62328 KB Output is correct
44 Correct 7 ms 39516 KB Output is correct
45 Correct 20 ms 64092 KB Output is correct
46 Correct 11 ms 53988 KB Output is correct
47 Correct 17 ms 64092 KB Output is correct
48 Correct 12 ms 57944 KB Output is correct
49 Correct 17 ms 62044 KB Output is correct
50 Correct 9 ms 45656 KB Output is correct
51 Correct 17 ms 62044 KB Output is correct
52 Correct 6 ms 37468 KB Output is correct
53 Correct 14 ms 62296 KB Output is correct
54 Correct 7 ms 43612 KB Output is correct
55 Correct 15 ms 64212 KB Output is correct
56 Correct 9 ms 47708 KB Output is correct
57 Correct 15 ms 66140 KB Output is correct
58 Correct 9 ms 49756 KB Output is correct
59 Correct 88 ms 133828 KB Output is correct
60 Correct 29 ms 109148 KB Output is correct
61 Correct 87 ms 134000 KB Output is correct
62 Correct 26 ms 109144 KB Output is correct
63 Correct 83 ms 133968 KB Output is correct
64 Correct 27 ms 109144 KB Output is correct
65 Correct 71 ms 127836 KB Output is correct
66 Correct 66 ms 121692 KB Output is correct
67 Correct 59 ms 119640 KB Output is correct
68 Correct 53 ms 115544 KB Output is correct
69 Correct 70 ms 125780 KB Output is correct
70 Correct 73 ms 123744 KB Output is correct
71 Correct 65 ms 123988 KB Output is correct
72 Correct 77 ms 125776 KB Output is correct
73 Correct 49 ms 119640 KB Output is correct
74 Correct 61 ms 115544 KB Output is correct
75 Correct 63 ms 121692 KB Output is correct
76 Correct 91 ms 132180 KB Output is correct
77 Correct 73 ms 131928 KB Output is correct
78 Correct 61 ms 115548 KB Output is correct
79 Correct 60 ms 117592 KB Output is correct
80 Correct 86 ms 129872 KB Output is correct
81 Correct 61 ms 117588 KB Output is correct
82 Correct 49 ms 121688 KB Output is correct
83 Correct 77 ms 134004 KB Output is correct
84 Correct 52 ms 123740 KB Output is correct
85 Correct 62 ms 130152 KB Output is correct
86 Correct 56 ms 127832 KB Output is correct
87 Correct 66 ms 121688 KB Output is correct
88 Correct 105 ms 134008 KB Output is correct
89 Correct 87 ms 133968 KB Output is correct
90 Correct 33 ms 123736 KB Output is correct
91 Correct 101 ms 134004 KB Output is correct
92 Correct 83 ms 134004 KB Output is correct
93 Correct 38 ms 133980 KB Output is correct