oj.uz

Submission #846595

# Submission time Handle Problem Language Result Execution time Memory
846595 2023-09-08T04:50:15 Z Darren0724 Birthday gift (IZhO18_treearray) C++17
100 / 100
 760 ms 82480 KB 
#include <bits/stdc++.h>
using namespace std;
// #define int long long
#define all(x) x.begin(), x.end()
const int N = 200005;
const int K = __lg(N) + 1;
int n, m, q;
vector<int> adj[N], deep(N);
int jump[K][N];
set<int> s1[N], s2[N];
void dfs(int k, int pa) {
    jump[0][k] = pa;
    for (int i = 1; i < K; i++) {
        jump[i][k] = jump[i - 1][jump[i - 1][k]];
    }
    for (int j : adj[k]) {
        if (j == pa) {
            continue;
        }
        deep[j] = deep[k] + 1;
        dfs(j, k);
    }
}
int lca(int a, int b) {
    if (deep[a] < deep[b]) {
        swap(a, b);
    }
    int p = deep[a] - deep[b];
    for (int i = 0; i < K; i++) {
        if ((1 << i) & p) {
            a = jump[i][a];
        }
    }
    if (a == b) {
        return a;
    }
    for (int i = K - 1; i >= 0; i--) {
        if (jump[i][a] != jump[i][b]) {
            a = jump[i][a];
            b = jump[i][b];
        }
    }
    return jump[0][a];
}
int32_t main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cin >> n >> m >> q;
    for (int i = 1; i < n; i++) {
        int a, b;
        cin >> a >> b;
        adj[a].push_back(b);
        adj[b].push_back(a);
    }
    dfs(1, 1);
    vector<int> v(m + 1);
    for (int i = 1; i <= m; i++) {
        cin >> v[i];
    }
    for (int i = 1; i <= m; i++) {
        s1[v[i]].insert(i);
    }
    for (int i = 1; i < m; i++) {
        s2[lca(v[i],v[i+1])].insert(i);
    }
    for (int i = 0; i < q; i++) {
        int id;
        cin >> id;
        if (id == 1) {
            int a, b;
            cin >> a >> b;
            s1[v[a]].erase(a);
            if(a<m){
                s2[lca(v[a],v[a+1])].erase(a);
            }
            if(a>1){
                s2[lca(v[a-1],v[a])].erase(a-1);
            }
            v[a] = b;
            s1[v[a]].insert(a);
            if(a<m){
                s2[lca(v[a],v[a+1])].insert(a);
            }
            if(a>1){
                s2[lca(v[a-1],v[a])].insert(a-1);
            }
        } 
        else {
            int l,r,v;cin>>l>>r>>v;
            auto it1=s1[v].lower_bound(l);
            if(it1!=s1[v].end()&&*it1<=r){
                cout<<*it1<<' '<<*it1<<'\n';
                continue;
            }    
            auto it2=s2[v].lower_bound(l);
            if(it2!=s2[v].end()&&*it2+1<=r){
                cout<<*it2<<' '<<*it2+1<<'\n';
                continue;
            }   
            cout<<-1<<' '<<-1<<'\n';
        }
    }
    return 0;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 38744 KB n=5
2 Correct 7 ms 38828 KB n=100
3 Correct 7 ms 38744 KB n=100
4 Correct 7 ms 38744 KB n=100
5 Correct 7 ms 38744 KB n=100
6 Correct 8 ms 38744 KB n=100
7 Correct 7 ms 38744 KB n=100
8 Correct 7 ms 38744 KB n=100
9 Correct 7 ms 38812 KB n=100
10 Correct 7 ms 38744 KB n=100
11 Correct 7 ms 38744 KB n=100
12 Correct 8 ms 38744 KB n=100
13 Correct 7 ms 38748 KB n=100
14 Correct 7 ms 38744 KB n=100
15 Correct 7 ms 38784 KB n=100
16 Correct 7 ms 38808 KB n=100
17 Correct 7 ms 38744 KB n=100
18 Correct 7 ms 39000 KB n=100
19 Correct 7 ms 38744 KB n=100
20 Correct 7 ms 38744 KB n=100
21 Correct 8 ms 38748 KB n=100
22 Correct 7 ms 38744 KB n=100
23 Correct 8 ms 39000 KB n=100
24 Correct 7 ms 38744 KB n=100
25 Correct 7 ms 38744 KB n=100
26 Correct 7 ms 38744 KB n=12
27 Correct 7 ms 38748 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 38744 KB n=5
2 Correct 7 ms 38828 KB n=100
3 Correct 7 ms 38744 KB n=100
4 Correct 7 ms 38744 KB n=100
5 Correct 7 ms 38744 KB n=100
6 Correct 8 ms 38744 KB n=100
7 Correct 7 ms 38744 KB n=100
8 Correct 7 ms 38744 KB n=100
9 Correct 7 ms 38812 KB n=100
10 Correct 7 ms 38744 KB n=100
11 Correct 7 ms 38744 KB n=100
12 Correct 8 ms 38744 KB n=100
13 Correct 7 ms 38748 KB n=100
14 Correct 7 ms 38744 KB n=100
15 Correct 7 ms 38784 KB n=100
16 Correct 7 ms 38808 KB n=100
17 Correct 7 ms 38744 KB n=100
18 Correct 7 ms 39000 KB n=100
19 Correct 7 ms 38744 KB n=100
20 Correct 7 ms 38744 KB n=100
21 Correct 8 ms 38748 KB n=100
22 Correct 7 ms 38744 KB n=100
23 Correct 8 ms 39000 KB n=100
24 Correct 7 ms 38744 KB n=100
25 Correct 7 ms 38744 KB n=100
26 Correct 7 ms 38744 KB n=12
27 Correct 7 ms 38748 KB n=100
28 Correct 7 ms 38744 KB n=500
29 Correct 8 ms 38744 KB n=500
30 Correct 8 ms 38748 KB n=500
31 Correct 8 ms 38744 KB n=500
32 Correct 7 ms 38744 KB n=500
33 Correct 8 ms 38744 KB n=500
34 Correct 8 ms 38744 KB n=500
35 Correct 9 ms 38820 KB n=500
36 Correct 7 ms 38744 KB n=500
37 Correct 7 ms 38744 KB n=500
38 Correct 7 ms 38744 KB n=500
39 Correct 7 ms 38748 KB n=500
40 Correct 7 ms 38744 KB n=500
41 Correct 8 ms 38744 KB n=500
42 Correct 8 ms 38744 KB n=500
43 Correct 8 ms 38744 KB n=500
44 Correct 8 ms 38744 KB n=500
45 Correct 8 ms 39004 KB n=500
46 Correct 8 ms 38744 KB n=500
47 Correct 7 ms 38744 KB n=500
48 Correct 8 ms 39000 KB n=500
49 Correct 7 ms 38748 KB n=500
50 Correct 7 ms 38744 KB n=500
51 Correct 8 ms 38748 KB n=500
52 Correct 8 ms 38744 KB n=500
53 Correct 8 ms 38744 KB n=500
54 Correct 7 ms 38744 KB n=500
55 Correct 7 ms 38744 KB n=278
56 Correct 8 ms 38744 KB n=500
57 Correct 8 ms 39000 KB n=500
58 Correct 7 ms 38748 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 38744 KB n=5
2 Correct 7 ms 38828 KB n=100
3 Correct 7 ms 38744 KB n=100
4 Correct 7 ms 38744 KB n=100
5 Correct 7 ms 38744 KB n=100
6 Correct 8 ms 38744 KB n=100
7 Correct 7 ms 38744 KB n=100
8 Correct 7 ms 38744 KB n=100
9 Correct 7 ms 38812 KB n=100
10 Correct 7 ms 38744 KB n=100
11 Correct 7 ms 38744 KB n=100
12 Correct 8 ms 38744 KB n=100
13 Correct 7 ms 38748 KB n=100
14 Correct 7 ms 38744 KB n=100
15 Correct 7 ms 38784 KB n=100
16 Correct 7 ms 38808 KB n=100
17 Correct 7 ms 38744 KB n=100
18 Correct 7 ms 39000 KB n=100
19 Correct 7 ms 38744 KB n=100
20 Correct 7 ms 38744 KB n=100
21 Correct 8 ms 38748 KB n=100
22 Correct 7 ms 38744 KB n=100
23 Correct 8 ms 39000 KB n=100
24 Correct 7 ms 38744 KB n=100
25 Correct 7 ms 38744 KB n=100
26 Correct 7 ms 38744 KB n=12
27 Correct 7 ms 38748 KB n=100
28 Correct 7 ms 38744 KB n=500
29 Correct 8 ms 38744 KB n=500
30 Correct 8 ms 38748 KB n=500
31 Correct 8 ms 38744 KB n=500
32 Correct 7 ms 38744 KB n=500
33 Correct 8 ms 38744 KB n=500
34 Correct 8 ms 38744 KB n=500
35 Correct 9 ms 38820 KB n=500
36 Correct 7 ms 38744 KB n=500
37 Correct 7 ms 38744 KB n=500
38 Correct 7 ms 38744 KB n=500
39 Correct 7 ms 38748 KB n=500
40 Correct 7 ms 38744 KB n=500
41 Correct 8 ms 38744 KB n=500
42 Correct 8 ms 38744 KB n=500
43 Correct 8 ms 38744 KB n=500
44 Correct 8 ms 38744 KB n=500
45 Correct 8 ms 39004 KB n=500
46 Correct 8 ms 38744 KB n=500
47 Correct 7 ms 38744 KB n=500
48 Correct 8 ms 39000 KB n=500
49 Correct 7 ms 38748 KB n=500
50 Correct 7 ms 38744 KB n=500
51 Correct 8 ms 38748 KB n=500
52 Correct 8 ms 38744 KB n=500
53 Correct 8 ms 38744 KB n=500
54 Correct 7 ms 38744 KB n=500
55 Correct 7 ms 38744 KB n=278
56 Correct 8 ms 38744 KB n=500
57 Correct 8 ms 39000 KB n=500
58 Correct 7 ms 38748 KB n=500
59 Correct 9 ms 39000 KB n=2000
60 Correct 9 ms 39004 KB n=2000
61 Correct 10 ms 39000 KB n=2000
62 Correct 9 ms 39000 KB n=2000
63 Correct 9 ms 39000 KB n=2000
64 Correct 9 ms 39000 KB n=2000
65 Correct 9 ms 39000 KB n=2000
66 Correct 9 ms 39000 KB n=2000
67 Correct 9 ms 39000 KB n=2000
68 Correct 10 ms 39000 KB n=2000
69 Correct 9 ms 39000 KB n=2000
70 Correct 9 ms 39000 KB n=2000
71 Correct 9 ms 39000 KB n=2000
72 Correct 9 ms 39000 KB n=2000
73 Correct 9 ms 39000 KB n=2000
74 Correct 9 ms 39000 KB n=1844
75 Correct 9 ms 39000 KB n=2000
76 Correct 9 ms 39000 KB n=2000
77 Correct 9 ms 39004 KB n=2000
78 Correct 9 ms 39000 KB n=2000
79 Correct 9 ms 39000 KB n=2000
80 Correct 9 ms 39000 KB n=2000
81 Correct 10 ms 39000 KB n=2000
82 Correct 9 ms 39000 KB n=2000
83 Correct 9 ms 39000 KB n=2000
84 Correct 9 ms 39000 KB n=2000
85 Correct 9 ms 39000 KB n=2000
86 Correct 9 ms 39000 KB n=2000
87 Correct 9 ms 39000 KB n=2000
88 Correct 9 ms 39000 KB n=2000
89 Correct 9 ms 39000 KB n=2000
90 Correct 9 ms 39000 KB n=2000
91 Correct 9 ms 39000 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 38744 KB n=5
2 Correct 7 ms 38828 KB n=100
3 Correct 7 ms 38744 KB n=100
4 Correct 7 ms 38744 KB n=100
5 Correct 7 ms 38744 KB n=100
6 Correct 8 ms 38744 KB n=100
7 Correct 7 ms 38744 KB n=100
8 Correct 7 ms 38744 KB n=100
9 Correct 7 ms 38812 KB n=100
10 Correct 7 ms 38744 KB n=100
11 Correct 7 ms 38744 KB n=100
12 Correct 8 ms 38744 KB n=100
13 Correct 7 ms 38748 KB n=100
14 Correct 7 ms 38744 KB n=100
15 Correct 7 ms 38784 KB n=100
16 Correct 7 ms 38808 KB n=100
17 Correct 7 ms 38744 KB n=100
18 Correct 7 ms 39000 KB n=100
19 Correct 7 ms 38744 KB n=100
20 Correct 7 ms 38744 KB n=100
21 Correct 8 ms 38748 KB n=100
22 Correct 7 ms 38744 KB n=100
23 Correct 8 ms 39000 KB n=100
24 Correct 7 ms 38744 KB n=100
25 Correct 7 ms 38744 KB n=100
26 Correct 7 ms 38744 KB n=12
27 Correct 7 ms 38748 KB n=100
28 Correct 7 ms 38744 KB n=500
29 Correct 8 ms 38744 KB n=500
30 Correct 8 ms 38748 KB n=500
31 Correct 8 ms 38744 KB n=500
32 Correct 7 ms 38744 KB n=500
33 Correct 8 ms 38744 KB n=500
34 Correct 8 ms 38744 KB n=500
35 Correct 9 ms 38820 KB n=500
36 Correct 7 ms 38744 KB n=500
37 Correct 7 ms 38744 KB n=500
38 Correct 7 ms 38744 KB n=500
39 Correct 7 ms 38748 KB n=500
40 Correct 7 ms 38744 KB n=500
41 Correct 8 ms 38744 KB n=500
42 Correct 8 ms 38744 KB n=500
43 Correct 8 ms 38744 KB n=500
44 Correct 8 ms 38744 KB n=500
45 Correct 8 ms 39004 KB n=500
46 Correct 8 ms 38744 KB n=500
47 Correct 7 ms 38744 KB n=500
48 Correct 8 ms 39000 KB n=500
49 Correct 7 ms 38748 KB n=500
50 Correct 7 ms 38744 KB n=500
51 Correct 8 ms 38748 KB n=500
52 Correct 8 ms 38744 KB n=500
53 Correct 8 ms 38744 KB n=500
54 Correct 7 ms 38744 KB n=500
55 Correct 7 ms 38744 KB n=278
56 Correct 8 ms 38744 KB n=500
57 Correct 8 ms 39000 KB n=500
58 Correct 7 ms 38748 KB n=500
59 Correct 9 ms 39000 KB n=2000
60 Correct 9 ms 39004 KB n=2000
61 Correct 10 ms 39000 KB n=2000
62 Correct 9 ms 39000 KB n=2000
63 Correct 9 ms 39000 KB n=2000
64 Correct 9 ms 39000 KB n=2000
65 Correct 9 ms 39000 KB n=2000
66 Correct 9 ms 39000 KB n=2000
67 Correct 9 ms 39000 KB n=2000
68 Correct 10 ms 39000 KB n=2000
69 Correct 9 ms 39000 KB n=2000
70 Correct 9 ms 39000 KB n=2000
71 Correct 9 ms 39000 KB n=2000
72 Correct 9 ms 39000 KB n=2000
73 Correct 9 ms 39000 KB n=2000
74 Correct 9 ms 39000 KB n=1844
75 Correct 9 ms 39000 KB n=2000
76 Correct 9 ms 39000 KB n=2000
77 Correct 9 ms 39004 KB n=2000
78 Correct 9 ms 39000 KB n=2000
79 Correct 9 ms 39000 KB n=2000
80 Correct 9 ms 39000 KB n=2000
81 Correct 10 ms 39000 KB n=2000
82 Correct 9 ms 39000 KB n=2000
83 Correct 9 ms 39000 KB n=2000
84 Correct 9 ms 39000 KB n=2000
85 Correct 9 ms 39000 KB n=2000
86 Correct 9 ms 39000 KB n=2000
87 Correct 9 ms 39000 KB n=2000
88 Correct 9 ms 39000 KB n=2000
89 Correct 9 ms 39000 KB n=2000
90 Correct 9 ms 39000 KB n=2000
91 Correct 9 ms 39000 KB n=2000
92 Correct 597 ms 72992 KB n=200000
93 Correct 760 ms 78252 KB n=200000
94 Correct 602 ms 81228 KB n=200000
95 Correct 561 ms 73080 KB n=200000
96 Correct 522 ms 72888 KB n=200000
97 Correct 748 ms 77136 KB n=200000
98 Correct 524 ms 73156 KB n=200000
99 Correct 704 ms 73036 KB n=200000
100 Correct 546 ms 73012 KB n=200000
101 Correct 612 ms 82480 KB n=200000
102 Correct 253 ms 74064 KB n=200000
103 Correct 254 ms 74092 KB n=200000
104 Correct 290 ms 73976 KB n=200000
105 Correct 256 ms 74320 KB n=200000
106 Correct 286 ms 74320 KB n=200000
107 Correct 319 ms 74320 KB n=200000
108 Correct 600 ms 73040 KB n=200000
109 Correct 666 ms 72896 KB n=200000
110 Correct 593 ms 73016 KB n=200000
111 Correct 529 ms 72512 KB n=200000
112 Correct 674 ms 81468 KB n=200000
113 Correct 680 ms 77112 KB n=200000
114 Correct 483 ms 72464 KB n=200000
115 Correct 714 ms 74956 KB n=200000
116 Correct 526 ms 73092 KB n=200000
117 Correct 696 ms 81848 KB n=200000
118 Correct 688 ms 76056 KB n=200000
119 Correct 523 ms 73012 KB n=200000
120 Correct 566 ms 81548 KB n=200000
121 Correct 584 ms 81588 KB n=200000
122 Correct 572 ms 81744 KB n=200000
123 Correct 343 ms 74568 KB n=200000
124 Correct 130 ms 51512 KB n=25264