oj.uz

Submission #1081657

# Submission time Handle Problem Language Result Execution time Memory
1081657 2024-08-30T08:51:48 Z vjudge1 Long Mansion (JOI17_long_mansion) C++17
100 / 100
 167 ms 48720 KB 
#include <bits/stdc++.h>
using namespace std;
 
const int NM = 5e5;
 
int N, Q, C[NM+5], B[NM+5], pre[NM+5], nxt[NM+5], lst[NM+5];
vector <int> arr[NM+5];
int l[NM+5], r[NM+5];
 
void solve(int u){
    int curl = u, curr = u;
    while (true){
        if (curl > 1 && nxt[curl] <= curr){
            curl--;
            if (l[curl] <= u && r[curl] >= u){
                l[u] = l[curl];
                r[u] = r[curl];
                return;
            }
        }
        else if (curr < N && pre[curr] >= curl){
            curr++;
        }
        else break;
    }
    l[u] = curl, r[u] = curr;
}
 
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
 
    cin >> N;
    for (int i = 1; i < N; i++) cin >> C[i];
    for (int i = 1; i <= N; i++){
        cin >> B[i];
        arr[i].resize(B[i]);
        for (int j = 0; j < B[i]; j++) cin >> arr[i][j];
    }
    for (int i = 1; i < N; i++){
        for (int x : arr[i]) lst[x] = i;
        pre[i] = lst[C[i]];
    }
    for (int i = 1; i <= N; i++) lst[i] = N+1;
    for (int i = N; i > 1; i--){
        for (int x : arr[i]) lst[x] = i;
        nxt[i] = lst[C[i-1]];
    }
    for (int i = 1; i <= N; i++) solve(i);
 
    cin >> Q;
    while (Q--){
        int x, y; cin >> x >> y;
        if (l[x] <= y && r[x] >= y){
            cout << "YES\n";
            continue;
        }
        cout << "NO\n";
    }
    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 12380 KB Output is correct
2 Correct 6 ms 12456 KB Output is correct
3 Correct 7 ms 12316 KB Output is correct
4 Correct 6 ms 12376 KB Output is correct
5 Correct 6 ms 12200 KB Output is correct
6 Correct 6 ms 12344 KB Output is correct
7 Correct 7 ms 12380 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 12380 KB Output is correct
2 Correct 6 ms 12456 KB Output is correct
3 Correct 7 ms 12316 KB Output is correct
4 Correct 6 ms 12376 KB Output is correct
5 Correct 6 ms 12200 KB Output is correct
6 Correct 6 ms 12344 KB Output is correct
7 Correct 7 ms 12380 KB Output is correct
8 Correct 64 ms 13716 KB Output is correct
9 Correct 71 ms 13636 KB Output is correct
10 Correct 61 ms 13912 KB Output is correct
11 Correct 63 ms 14208 KB Output is correct
12 Correct 54 ms 13904 KB Output is correct
13 Correct 68 ms 14164 KB Output is correct
14 Correct 56 ms 13908 KB Output is correct
15 Correct 56 ms 14164 KB Output is correct
16 Correct 59 ms 14164 KB Output is correct
17 Correct 56 ms 13908 KB Output is correct
18 Correct 60 ms 13904 KB Output is correct
19 Correct 56 ms 13908 KB Output is correct
20 Correct 59 ms 14160 KB Output is correct
21 Correct 62 ms 14284 KB Output is correct
22 Correct 56 ms 13904 KB Output is correct
23 Correct 64 ms 13840 KB Output is correct
24 Correct 59 ms 13908 KB Output is correct
25 Correct 58 ms 13932 KB Output is correct
26 Correct 60 ms 13904 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 107 ms 19796 KB Output is correct
2 Correct 106 ms 19796 KB Output is correct
3 Correct 104 ms 19776 KB Output is correct
4 Correct 100 ms 19792 KB Output is correct
5 Correct 126 ms 19632 KB Output is correct
6 Correct 87 ms 19796 KB Output is correct
7 Correct 83 ms 20052 KB Output is correct
8 Correct 82 ms 20052 KB Output is correct
9 Correct 80 ms 20048 KB Output is correct
10 Correct 90 ms 19904 KB Output is correct
11 Correct 105 ms 23376 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 12380 KB Output is correct
2 Correct 6 ms 12456 KB Output is correct
3 Correct 7 ms 12316 KB Output is correct
4 Correct 6 ms 12376 KB Output is correct
5 Correct 6 ms 12200 KB Output is correct
6 Correct 6 ms 12344 KB Output is correct
7 Correct 7 ms 12380 KB Output is correct
8 Correct 64 ms 13716 KB Output is correct
9 Correct 71 ms 13636 KB Output is correct
10 Correct 61 ms 13912 KB Output is correct
11 Correct 63 ms 14208 KB Output is correct
12 Correct 54 ms 13904 KB Output is correct
13 Correct 68 ms 14164 KB Output is correct
14 Correct 56 ms 13908 KB Output is correct
15 Correct 56 ms 14164 KB Output is correct
16 Correct 59 ms 14164 KB Output is correct
17 Correct 56 ms 13908 KB Output is correct
18 Correct 60 ms 13904 KB Output is correct
19 Correct 56 ms 13908 KB Output is correct
20 Correct 59 ms 14160 KB Output is correct
21 Correct 62 ms 14284 KB Output is correct
22 Correct 56 ms 13904 KB Output is correct
23 Correct 64 ms 13840 KB Output is correct
24 Correct 59 ms 13908 KB Output is correct
25 Correct 58 ms 13932 KB Output is correct
26 Correct 60 ms 13904 KB Output is correct
27 Correct 107 ms 19796 KB Output is correct
28 Correct 106 ms 19796 KB Output is correct
29 Correct 104 ms 19776 KB Output is correct
30 Correct 100 ms 19792 KB Output is correct
31 Correct 126 ms 19632 KB Output is correct
32 Correct 87 ms 19796 KB Output is correct
33 Correct 83 ms 20052 KB Output is correct
34 Correct 82 ms 20052 KB Output is correct
35 Correct 80 ms 20048 KB Output is correct
36 Correct 90 ms 19904 KB Output is correct
37 Correct 105 ms 23376 KB Output is correct
38 Correct 166 ms 43424 KB Output is correct
39 Correct 155 ms 48720 KB Output is correct
40 Correct 148 ms 36944 KB Output is correct
41 Correct 167 ms 48468 KB Output is correct
42 Correct 94 ms 23832 KB Output is correct
43 Correct 90 ms 23888 KB Output is correct
44 Correct 122 ms 31228 KB Output is correct
45 Correct 120 ms 31060 KB Output is correct
46 Correct 138 ms 30912 KB Output is correct
47 Correct 100 ms 23656 KB Output is correct
48 Correct 94 ms 23672 KB Output is correct
49 Correct 118 ms 31060 KB Output is correct
50 Correct 117 ms 31060 KB Output is correct
51 Correct 129 ms 31052 KB Output is correct
52 Correct 120 ms 30312 KB Output is correct
53 Correct 150 ms 36944 KB Output is correct
54 Correct 166 ms 43568 KB Output is correct
55 Correct 138 ms 37208 KB Output is correct