oj.uz

Submission #992541

# Submission time Handle Problem Language Result Execution time Memory
992541 2024-06-04T16:05:11 Z VMaksimoski008 Birthday gift (IZhO18_treearray) C++17
100 / 100
 748 ms 82672 KB 
#include <bits/stdc++.h>
using namespace std;
 
const int LOG = 20;
const int maxn = 2e5 + 5;
 
int n, m, q, D[maxn], up[maxn][LOG];
vector<int> G[maxn], V(maxn);
set<int> S[maxn], M[maxn];
 
void dfs(int u, int p) {
    for(int i=1; i<LOG; i++) up[u][i] = up[up[u][i-1]][i-1];
 
    for(int &v : G[u]) {
        if(v == p) continue;
        up[v][0] = u;
        D[v] = D[u] + 1;
        dfs(v, u);
    }
}
 
int jmp(int x, int d) {
    for(int j=LOG-1; j>=0; j--)
        if(d & (1 << j)) x = up[x][j];
    return x;
}
 
int lca(int a, int b) {
    if(D[a] < D[b]) swap(a, b);
 
    a = jmp(a, D[a] - D[b]);
    if(a == b) return a;
    for(int j=LOG-1; j>=0; j--)
        if(up[a][j] != up[b][j])
            a = up[a][j], b = up[b][j];
 
    return up[a][0];
}
 
int main() {
    cin >> n >> m >> q;
 
    for(int i=0; i<n-1; i++) {
        int a, b;
        cin >> a >> b;
        G[a].push_back(b);
        G[b].push_back(a);
    }
 
    dfs(1, 0);
 
    for(int i=1; i<=m; i++) cin >> V[i];
    for(int i=1; i<=m; i++) {
        S[V[i]].insert(i);
        if(i < m) M[lca(V[i], V[i+1])].insert(i); 
    }
 
    while(q--) {
        int t;
        cin >> t;
 
        if(t == 1) {
            int p, v;
            cin >> p >> v;
            S[V[p]].erase(p);
            if(p < m) M[lca(V[p], V[p+1])].erase(p);
            if(p) M[lca(V[p], V[p-1])].erase(p-1);
            V[p] = v;
            S[V[p]].insert(p);
            if(p < m) M[lca(V[p], V[p+1])].insert(p);
            if(p) M[lca(V[p], V[p-1])].insert(p-1);
        } else {
            int l, r, v;
            cin >> l >> r >> v;
 
            auto it = S[v].lower_bound(l);
            if(it != S[v].end() && *it <= r && *it >= l) {
                cout << *it << " " << *it << '\n';
                continue;
            } 
 
            auto it2 = M[v].lower_bound(l);
            if(it2 != M[v].end() && *it2 < r && *it2 >= l) {
                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 4 ms 25948 KB n=5
2 Correct 5 ms 25948 KB n=100
3 Correct 4 ms 25948 KB n=100
4 Correct 4 ms 25948 KB n=100
5 Correct 5 ms 25948 KB n=100
6 Correct 4 ms 25948 KB n=100
7 Correct 5 ms 25948 KB n=100
8 Correct 4 ms 25948 KB n=100
9 Correct 4 ms 25948 KB n=100
10 Correct 4 ms 25948 KB n=100
11 Correct 4 ms 25824 KB n=100
12 Correct 4 ms 25948 KB n=100
13 Correct 4 ms 25948 KB n=100
14 Correct 4 ms 25948 KB n=100
15 Correct 4 ms 25948 KB n=100
16 Correct 4 ms 25948 KB n=100
17 Correct 5 ms 25948 KB n=100
18 Correct 4 ms 25948 KB n=100
19 Correct 5 ms 25948 KB n=100
20 Correct 4 ms 25948 KB n=100
21 Correct 5 ms 25948 KB n=100
22 Correct 5 ms 25948 KB n=100
23 Correct 4 ms 26200 KB n=100
24 Correct 5 ms 25944 KB n=100
25 Correct 4 ms 25948 KB n=100
26 Correct 5 ms 25944 KB n=12
27 Correct 5 ms 25948 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 25948 KB n=5
2 Correct 5 ms 25948 KB n=100
3 Correct 4 ms 25948 KB n=100
4 Correct 4 ms 25948 KB n=100
5 Correct 5 ms 25948 KB n=100
6 Correct 4 ms 25948 KB n=100
7 Correct 5 ms 25948 KB n=100
8 Correct 4 ms 25948 KB n=100
9 Correct 4 ms 25948 KB n=100
10 Correct 4 ms 25948 KB n=100
11 Correct 4 ms 25824 KB n=100
12 Correct 4 ms 25948 KB n=100
13 Correct 4 ms 25948 KB n=100
14 Correct 4 ms 25948 KB n=100
15 Correct 4 ms 25948 KB n=100
16 Correct 4 ms 25948 KB n=100
17 Correct 5 ms 25948 KB n=100
18 Correct 4 ms 25948 KB n=100
19 Correct 5 ms 25948 KB n=100
20 Correct 4 ms 25948 KB n=100
21 Correct 5 ms 25948 KB n=100
22 Correct 5 ms 25948 KB n=100
23 Correct 4 ms 26200 KB n=100
24 Correct 5 ms 25944 KB n=100
25 Correct 4 ms 25948 KB n=100
26 Correct 5 ms 25944 KB n=12
27 Correct 5 ms 25948 KB n=100
28 Correct 7 ms 25948 KB n=500
29 Correct 5 ms 25944 KB n=500
30 Correct 6 ms 25944 KB n=500
31 Correct 5 ms 25944 KB n=500
32 Correct 7 ms 25948 KB n=500
33 Correct 5 ms 25948 KB n=500
34 Correct 5 ms 25948 KB n=500
35 Correct 5 ms 25948 KB n=500
36 Correct 5 ms 25948 KB n=500
37 Correct 5 ms 25948 KB n=500
38 Correct 5 ms 25948 KB n=500
39 Correct 6 ms 25948 KB n=500
40 Correct 7 ms 25948 KB n=500
41 Correct 7 ms 25944 KB n=500
42 Correct 6 ms 25948 KB n=500
43 Correct 5 ms 25948 KB n=500
44 Correct 5 ms 25980 KB n=500
45 Correct 6 ms 25948 KB n=500
46 Correct 5 ms 25948 KB n=500
47 Correct 6 ms 25948 KB n=500
48 Correct 5 ms 25948 KB n=500
49 Correct 6 ms 25944 KB n=500
50 Correct 6 ms 25944 KB n=500
51 Correct 6 ms 25948 KB n=500
52 Correct 6 ms 25948 KB n=500
53 Correct 6 ms 25944 KB n=500
54 Correct 5 ms 25948 KB n=500
55 Correct 5 ms 25948 KB n=278
56 Correct 5 ms 25948 KB n=500
57 Correct 5 ms 25948 KB n=500
58 Correct 6 ms 25948 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 25948 KB n=5
2 Correct 5 ms 25948 KB n=100
3 Correct 4 ms 25948 KB n=100
4 Correct 4 ms 25948 KB n=100
5 Correct 5 ms 25948 KB n=100
6 Correct 4 ms 25948 KB n=100
7 Correct 5 ms 25948 KB n=100
8 Correct 4 ms 25948 KB n=100
9 Correct 4 ms 25948 KB n=100
10 Correct 4 ms 25948 KB n=100
11 Correct 4 ms 25824 KB n=100
12 Correct 4 ms 25948 KB n=100
13 Correct 4 ms 25948 KB n=100
14 Correct 4 ms 25948 KB n=100
15 Correct 4 ms 25948 KB n=100
16 Correct 4 ms 25948 KB n=100
17 Correct 5 ms 25948 KB n=100
18 Correct 4 ms 25948 KB n=100
19 Correct 5 ms 25948 KB n=100
20 Correct 4 ms 25948 KB n=100
21 Correct 5 ms 25948 KB n=100
22 Correct 5 ms 25948 KB n=100
23 Correct 4 ms 26200 KB n=100
24 Correct 5 ms 25944 KB n=100
25 Correct 4 ms 25948 KB n=100
26 Correct 5 ms 25944 KB n=12
27 Correct 5 ms 25948 KB n=100
28 Correct 7 ms 25948 KB n=500
29 Correct 5 ms 25944 KB n=500
30 Correct 6 ms 25944 KB n=500
31 Correct 5 ms 25944 KB n=500
32 Correct 7 ms 25948 KB n=500
33 Correct 5 ms 25948 KB n=500
34 Correct 5 ms 25948 KB n=500
35 Correct 5 ms 25948 KB n=500
36 Correct 5 ms 25948 KB n=500
37 Correct 5 ms 25948 KB n=500
38 Correct 5 ms 25948 KB n=500
39 Correct 6 ms 25948 KB n=500
40 Correct 7 ms 25948 KB n=500
41 Correct 7 ms 25944 KB n=500
42 Correct 6 ms 25948 KB n=500
43 Correct 5 ms 25948 KB n=500
44 Correct 5 ms 25980 KB n=500
45 Correct 6 ms 25948 KB n=500
46 Correct 5 ms 25948 KB n=500
47 Correct 6 ms 25948 KB n=500
48 Correct 5 ms 25948 KB n=500
49 Correct 6 ms 25944 KB n=500
50 Correct 6 ms 25944 KB n=500
51 Correct 6 ms 25948 KB n=500
52 Correct 6 ms 25948 KB n=500
53 Correct 6 ms 25944 KB n=500
54 Correct 5 ms 25948 KB n=500
55 Correct 5 ms 25948 KB n=278
56 Correct 5 ms 25948 KB n=500
57 Correct 5 ms 25948 KB n=500
58 Correct 6 ms 25948 KB n=500
59 Correct 9 ms 26200 KB n=2000
60 Correct 9 ms 26200 KB n=2000
61 Correct 9 ms 26204 KB n=2000
62 Correct 11 ms 26204 KB n=2000
63 Correct 9 ms 26200 KB n=2000
64 Correct 10 ms 26204 KB n=2000
65 Correct 8 ms 26200 KB n=2000
66 Correct 9 ms 26204 KB n=2000
67 Correct 10 ms 26204 KB n=2000
68 Correct 10 ms 26204 KB n=2000
69 Correct 9 ms 26204 KB n=2000
70 Correct 9 ms 26312 KB n=2000
71 Correct 9 ms 26200 KB n=2000
72 Correct 9 ms 26200 KB n=2000
73 Correct 9 ms 26204 KB n=2000
74 Correct 8 ms 26200 KB n=1844
75 Correct 9 ms 26112 KB n=2000
76 Correct 9 ms 26204 KB n=2000
77 Correct 9 ms 26204 KB n=2000
78 Correct 11 ms 26200 KB n=2000
79 Correct 8 ms 26204 KB n=2000
80 Correct 10 ms 26204 KB n=2000
81 Correct 9 ms 26200 KB n=2000
82 Correct 8 ms 26068 KB n=2000
83 Correct 8 ms 26200 KB n=2000
84 Correct 9 ms 26204 KB n=2000
85 Correct 14 ms 26204 KB n=2000
86 Correct 9 ms 26204 KB n=2000
87 Correct 12 ms 26204 KB n=2000
88 Correct 9 ms 26460 KB n=2000
89 Correct 9 ms 26460 KB n=2000
90 Correct 11 ms 26456 KB n=2000
91 Correct 9 ms 26204 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 25948 KB n=5
2 Correct 5 ms 25948 KB n=100
3 Correct 4 ms 25948 KB n=100
4 Correct 4 ms 25948 KB n=100
5 Correct 5 ms 25948 KB n=100
6 Correct 4 ms 25948 KB n=100
7 Correct 5 ms 25948 KB n=100
8 Correct 4 ms 25948 KB n=100
9 Correct 4 ms 25948 KB n=100
10 Correct 4 ms 25948 KB n=100
11 Correct 4 ms 25824 KB n=100
12 Correct 4 ms 25948 KB n=100
13 Correct 4 ms 25948 KB n=100
14 Correct 4 ms 25948 KB n=100
15 Correct 4 ms 25948 KB n=100
16 Correct 4 ms 25948 KB n=100
17 Correct 5 ms 25948 KB n=100
18 Correct 4 ms 25948 KB n=100
19 Correct 5 ms 25948 KB n=100
20 Correct 4 ms 25948 KB n=100
21 Correct 5 ms 25948 KB n=100
22 Correct 5 ms 25948 KB n=100
23 Correct 4 ms 26200 KB n=100
24 Correct 5 ms 25944 KB n=100
25 Correct 4 ms 25948 KB n=100
26 Correct 5 ms 25944 KB n=12
27 Correct 5 ms 25948 KB n=100
28 Correct 7 ms 25948 KB n=500
29 Correct 5 ms 25944 KB n=500
30 Correct 6 ms 25944 KB n=500
31 Correct 5 ms 25944 KB n=500
32 Correct 7 ms 25948 KB n=500
33 Correct 5 ms 25948 KB n=500
34 Correct 5 ms 25948 KB n=500
35 Correct 5 ms 25948 KB n=500
36 Correct 5 ms 25948 KB n=500
37 Correct 5 ms 25948 KB n=500
38 Correct 5 ms 25948 KB n=500
39 Correct 6 ms 25948 KB n=500
40 Correct 7 ms 25948 KB n=500
41 Correct 7 ms 25944 KB n=500
42 Correct 6 ms 25948 KB n=500
43 Correct 5 ms 25948 KB n=500
44 Correct 5 ms 25980 KB n=500
45 Correct 6 ms 25948 KB n=500
46 Correct 5 ms 25948 KB n=500
47 Correct 6 ms 25948 KB n=500
48 Correct 5 ms 25948 KB n=500
49 Correct 6 ms 25944 KB n=500
50 Correct 6 ms 25944 KB n=500
51 Correct 6 ms 25948 KB n=500
52 Correct 6 ms 25948 KB n=500
53 Correct 6 ms 25944 KB n=500
54 Correct 5 ms 25948 KB n=500
55 Correct 5 ms 25948 KB n=278
56 Correct 5 ms 25948 KB n=500
57 Correct 5 ms 25948 KB n=500
58 Correct 6 ms 25948 KB n=500
59 Correct 9 ms 26200 KB n=2000
60 Correct 9 ms 26200 KB n=2000
61 Correct 9 ms 26204 KB n=2000
62 Correct 11 ms 26204 KB n=2000
63 Correct 9 ms 26200 KB n=2000
64 Correct 10 ms 26204 KB n=2000
65 Correct 8 ms 26200 KB n=2000
66 Correct 9 ms 26204 KB n=2000
67 Correct 10 ms 26204 KB n=2000
68 Correct 10 ms 26204 KB n=2000
69 Correct 9 ms 26204 KB n=2000
70 Correct 9 ms 26312 KB n=2000
71 Correct 9 ms 26200 KB n=2000
72 Correct 9 ms 26200 KB n=2000
73 Correct 9 ms 26204 KB n=2000
74 Correct 8 ms 26200 KB n=1844
75 Correct 9 ms 26112 KB n=2000
76 Correct 9 ms 26204 KB n=2000
77 Correct 9 ms 26204 KB n=2000
78 Correct 11 ms 26200 KB n=2000
79 Correct 8 ms 26204 KB n=2000
80 Correct 10 ms 26204 KB n=2000
81 Correct 9 ms 26200 KB n=2000
82 Correct 8 ms 26068 KB n=2000
83 Correct 8 ms 26200 KB n=2000
84 Correct 9 ms 26204 KB n=2000
85 Correct 14 ms 26204 KB n=2000
86 Correct 9 ms 26204 KB n=2000
87 Correct 12 ms 26204 KB n=2000
88 Correct 9 ms 26460 KB n=2000
89 Correct 9 ms 26460 KB n=2000
90 Correct 11 ms 26456 KB n=2000
91 Correct 9 ms 26204 KB n=2000
92 Correct 721 ms 68000 KB n=200000
93 Correct 702 ms 75092 KB n=200000
94 Correct 723 ms 80464 KB n=200000
95 Correct 717 ms 68212 KB n=200000
96 Correct 626 ms 68240 KB n=200000
97 Correct 733 ms 73364 KB n=200000
98 Correct 649 ms 68100 KB n=200000
99 Correct 696 ms 67668 KB n=200000
100 Correct 629 ms 68020 KB n=200000
101 Correct 701 ms 82512 KB n=200000
102 Correct 578 ms 68948 KB n=200000
103 Correct 575 ms 69008 KB n=200000
104 Correct 566 ms 68952 KB n=200000
105 Correct 587 ms 68520 KB n=200000
106 Correct 597 ms 68688 KB n=200000
107 Correct 579 ms 68688 KB n=200000
108 Correct 679 ms 67664 KB n=200000
109 Correct 664 ms 67548 KB n=200000
110 Correct 649 ms 67692 KB n=200000
111 Correct 591 ms 67784 KB n=200000
112 Correct 691 ms 80724 KB n=200000
113 Correct 748 ms 73556 KB n=200000
114 Correct 624 ms 67780 KB n=200000
115 Correct 723 ms 69716 KB n=200000
116 Correct 584 ms 67784 KB n=200000
117 Correct 664 ms 81488 KB n=200000
118 Correct 684 ms 71660 KB n=200000
119 Correct 608 ms 67756 KB n=200000
120 Correct 613 ms 82328 KB n=200000
121 Correct 674 ms 82272 KB n=200000
122 Correct 680 ms 82672 KB n=200000
123 Correct 592 ms 68340 KB n=200000
124 Correct 175 ms 39208 KB n=25264