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Submission #1081935

# Submission time Handle Problem Language Result Execution time Memory
1081935 2024-08-30T13:01:32 Z daoquanglinh2007 Long Mansion (JOI17_long_mansion) C++17
100 / 100
 226 ms 43092 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 (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 4 ms 25176 KB Output is correct
2 Correct 4 ms 25180 KB Output is correct
3 Correct 5 ms 25432 KB Output is correct
4 Correct 6 ms 25180 KB Output is correct
5 Correct 4 ms 25032 KB Output is correct
6 Correct 4 ms 25176 KB Output is correct
7 Correct 6 ms 24924 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 25176 KB Output is correct
2 Correct 4 ms 25180 KB Output is correct
3 Correct 5 ms 25432 KB Output is correct
4 Correct 6 ms 25180 KB Output is correct
5 Correct 4 ms 25032 KB Output is correct
6 Correct 4 ms 25176 KB Output is correct
7 Correct 6 ms 24924 KB Output is correct
8 Correct 64 ms 26452 KB Output is correct
9 Correct 64 ms 26448 KB Output is correct
10 Correct 95 ms 26664 KB Output is correct
11 Correct 71 ms 26952 KB Output is correct
12 Correct 59 ms 26708 KB Output is correct
13 Correct 64 ms 26648 KB Output is correct
14 Correct 54 ms 26768 KB Output is correct
15 Correct 56 ms 26960 KB Output is correct
16 Correct 53 ms 26964 KB Output is correct
17 Correct 54 ms 26704 KB Output is correct
18 Correct 100 ms 26704 KB Output is correct
19 Correct 91 ms 26708 KB Output is correct
20 Correct 75 ms 26860 KB Output is correct
21 Correct 57 ms 26964 KB Output is correct
22 Correct 64 ms 26708 KB Output is correct
23 Correct 68 ms 26616 KB Output is correct
24 Correct 97 ms 22608 KB Output is correct
25 Correct 71 ms 22612 KB Output is correct
26 Correct 58 ms 20564 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 106 ms 26696 KB Output is correct
2 Correct 104 ms 25108 KB Output is correct
3 Correct 117 ms 25192 KB Output is correct
4 Correct 135 ms 26712 KB Output is correct
5 Correct 105 ms 25060 KB Output is correct
6 Correct 112 ms 26960 KB Output is correct
7 Correct 79 ms 25460 KB Output is correct
8 Correct 100 ms 30356 KB Output is correct
9 Correct 92 ms 30352 KB Output is correct
10 Correct 83 ms 30192 KB Output is correct
11 Correct 99 ms 30340 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 25176 KB Output is correct
2 Correct 4 ms 25180 KB Output is correct
3 Correct 5 ms 25432 KB Output is correct
4 Correct 6 ms 25180 KB Output is correct
5 Correct 4 ms 25032 KB Output is correct
6 Correct 4 ms 25176 KB Output is correct
7 Correct 6 ms 24924 KB Output is correct
8 Correct 64 ms 26452 KB Output is correct
9 Correct 64 ms 26448 KB Output is correct
10 Correct 95 ms 26664 KB Output is correct
11 Correct 71 ms 26952 KB Output is correct
12 Correct 59 ms 26708 KB Output is correct
13 Correct 64 ms 26648 KB Output is correct
14 Correct 54 ms 26768 KB Output is correct
15 Correct 56 ms 26960 KB Output is correct
16 Correct 53 ms 26964 KB Output is correct
17 Correct 54 ms 26704 KB Output is correct
18 Correct 100 ms 26704 KB Output is correct
19 Correct 91 ms 26708 KB Output is correct
20 Correct 75 ms 26860 KB Output is correct
21 Correct 57 ms 26964 KB Output is correct
22 Correct 64 ms 26708 KB Output is correct
23 Correct 68 ms 26616 KB Output is correct
24 Correct 97 ms 22608 KB Output is correct
25 Correct 71 ms 22612 KB Output is correct
26 Correct 58 ms 20564 KB Output is correct
27 Correct 106 ms 26696 KB Output is correct
28 Correct 104 ms 25108 KB Output is correct
29 Correct 117 ms 25192 KB Output is correct
30 Correct 135 ms 26712 KB Output is correct
31 Correct 105 ms 25060 KB Output is correct
32 Correct 112 ms 26960 KB Output is correct
33 Correct 79 ms 25460 KB Output is correct
34 Correct 100 ms 30356 KB Output is correct
35 Correct 92 ms 30352 KB Output is correct
36 Correct 83 ms 30192 KB Output is correct
37 Correct 99 ms 30340 KB Output is correct
38 Correct 141 ms 39508 KB Output is correct
39 Correct 226 ms 42836 KB Output is correct
40 Correct 142 ms 35940 KB Output is correct
41 Correct 148 ms 43092 KB Output is correct
42 Correct 102 ms 30040 KB Output is correct
43 Correct 91 ms 30072 KB Output is correct
44 Correct 107 ms 33204 KB Output is correct
45 Correct 109 ms 33108 KB Output is correct
46 Correct 116 ms 33204 KB Output is correct
47 Correct 92 ms 30028 KB Output is correct
48 Correct 96 ms 30032 KB Output is correct
49 Correct 156 ms 33212 KB Output is correct
50 Correct 114 ms 33260 KB Output is correct
51 Correct 118 ms 33108 KB Output is correct
52 Correct 114 ms 33060 KB Output is correct
53 Correct 129 ms 36176 KB Output is correct
54 Correct 151 ms 39508 KB Output is correct
55 Correct 134 ms 36180 KB Output is correct