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Submission #486215

# Submission time Handle Problem Language Result Execution time Memory
486215 2021-11-11T01:48:03 Z SirCovidThe19th Birthday gift (IZhO18_treearray) C++17
100 / 100
 1242 ms 86280 KB 
#include <bits/stdc++.h>
using namespace std;

#define FOR(i, x, y) for (int i = x; i < y; i++)

const int mx = 2e5 + 5, ml = 18;

int n, m, q, up[mx][ml], dep[mx], A[mx], L[mx]; 
vector<int> adj[mx]; set<int> posA[mx], posL[mx]; 

void dfs(int cur){
    FOR(i, 1, ml) up[cur][i] = up[up[cur][i - 1]][i - 1];
    for (int to : adj[cur]) if (to != up[cur][0]){
        up[to][0] = cur; dep[to] = dep[cur] + 1;
        dfs(to);
    }
}
int lca(int a, int b){
    if (dep[a] < dep[b]) swap(a, b);
    int dif = dep[a] - dep[b];
    FOR(i, 0, 18) if ((dif >> i) % 2) a = up[a][i];
    if (a == b) return a;
    for (int i = 17; ~i; i--) if (up[a][i] != up[b][i]) a = up[a][i], b = up[b][i];
    return up[a][0];
}
void upd(int i, int v){
    posA[A[i]].erase(i); A[i] = v; posA[A[i]].insert(i);

    posL[L[i - 1]].erase(i - 1); posL[L[i]].erase(i);
    L[i - 1] = lca(A[i - 1], A[i]); L[i] = lca(A[i], A[i + 1]);
    posL[L[i - 1]].insert(i - 1); posL[L[i]].insert(i);
}
void solve(int l, int r, int v){
    auto itA = posA[v].lower_bound(l);
    auto itL = posL[v].lower_bound(l);

    if (itA != posA[v].end() and *itA <= r) cout<<*itA<<" "<<*itA<<"\n";
    else if (itL != posL[v].end() and *itL < r) cout<<*itL<<" "<<*itL + 1<<"\n";
    else cout<<"-1 -1"<<"\n";
}
int main(){
    cin >> n >> m >> q;
    FOR(i, 1, n){
        int a, b; cin >> a >> b;
        adj[a].push_back(b); adj[b].push_back(a);
    }
    dfs(1);
    FOR(i, 1, m + 1){ int v; cin >> v; upd(i, v); }
    while (q--){
        int t; cin >> t;
        if (t == 1){ int a, v; cin >> a >> v; upd(a, v); }
        else{ int l, r, v; cin >> l >> r >> v; solve(l, r, v); }
    }
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23756 KB n=5
2 Correct 12 ms 23756 KB n=100
3 Correct 11 ms 23760 KB n=100
4 Correct 12 ms 23796 KB n=100
5 Correct 12 ms 23784 KB n=100
6 Correct 11 ms 23756 KB n=100
7 Correct 11 ms 23756 KB n=100
8 Correct 11 ms 23704 KB n=100
9 Correct 12 ms 23756 KB n=100
10 Correct 11 ms 23784 KB n=100
11 Correct 11 ms 23756 KB n=100
12 Correct 14 ms 23756 KB n=100
13 Correct 14 ms 23784 KB n=100
14 Correct 11 ms 23784 KB n=100
15 Correct 11 ms 23780 KB n=100
16 Correct 12 ms 23756 KB n=100
17 Correct 11 ms 23756 KB n=100
18 Correct 12 ms 23756 KB n=100
19 Correct 11 ms 23776 KB n=100
20 Correct 12 ms 23756 KB n=100
21 Correct 11 ms 23780 KB n=100
22 Correct 12 ms 23756 KB n=100
23 Correct 12 ms 23756 KB n=100
24 Correct 13 ms 23756 KB n=100
25 Correct 12 ms 23780 KB n=100
26 Correct 11 ms 23756 KB n=12
27 Correct 11 ms 23756 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23756 KB n=5
2 Correct 12 ms 23756 KB n=100
3 Correct 11 ms 23760 KB n=100
4 Correct 12 ms 23796 KB n=100
5 Correct 12 ms 23784 KB n=100
6 Correct 11 ms 23756 KB n=100
7 Correct 11 ms 23756 KB n=100
8 Correct 11 ms 23704 KB n=100
9 Correct 12 ms 23756 KB n=100
10 Correct 11 ms 23784 KB n=100
11 Correct 11 ms 23756 KB n=100
12 Correct 14 ms 23756 KB n=100
13 Correct 14 ms 23784 KB n=100
14 Correct 11 ms 23784 KB n=100
15 Correct 11 ms 23780 KB n=100
16 Correct 12 ms 23756 KB n=100
17 Correct 11 ms 23756 KB n=100
18 Correct 12 ms 23756 KB n=100
19 Correct 11 ms 23776 KB n=100
20 Correct 12 ms 23756 KB n=100
21 Correct 11 ms 23780 KB n=100
22 Correct 12 ms 23756 KB n=100
23 Correct 12 ms 23756 KB n=100
24 Correct 13 ms 23756 KB n=100
25 Correct 12 ms 23780 KB n=100
26 Correct 11 ms 23756 KB n=12
27 Correct 11 ms 23756 KB n=100
28 Correct 12 ms 23856 KB n=500
29 Correct 12 ms 23952 KB n=500
30 Correct 13 ms 23884 KB n=500
31 Correct 13 ms 23884 KB n=500
32 Correct 12 ms 23884 KB n=500
33 Correct 13 ms 23916 KB n=500
34 Correct 13 ms 23884 KB n=500
35 Correct 12 ms 23884 KB n=500
36 Correct 13 ms 23884 KB n=500
37 Correct 16 ms 23884 KB n=500
38 Correct 13 ms 23920 KB n=500
39 Correct 13 ms 23924 KB n=500
40 Correct 13 ms 23884 KB n=500
41 Correct 13 ms 23924 KB n=500
42 Correct 12 ms 23884 KB n=500
43 Correct 13 ms 23904 KB n=500
44 Correct 12 ms 23888 KB n=500
45 Correct 12 ms 23916 KB n=500
46 Correct 13 ms 23916 KB n=500
47 Correct 13 ms 23916 KB n=500
48 Correct 13 ms 23840 KB n=500
49 Correct 12 ms 23884 KB n=500
50 Correct 13 ms 23920 KB n=500
51 Correct 13 ms 23884 KB n=500
52 Correct 13 ms 23884 KB n=500
53 Correct 13 ms 23920 KB n=500
54 Correct 13 ms 23884 KB n=500
55 Correct 13 ms 23884 KB n=278
56 Correct 13 ms 23884 KB n=500
57 Correct 13 ms 23884 KB n=500
58 Correct 13 ms 23924 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23756 KB n=5
2 Correct 12 ms 23756 KB n=100
3 Correct 11 ms 23760 KB n=100
4 Correct 12 ms 23796 KB n=100
5 Correct 12 ms 23784 KB n=100
6 Correct 11 ms 23756 KB n=100
7 Correct 11 ms 23756 KB n=100
8 Correct 11 ms 23704 KB n=100
9 Correct 12 ms 23756 KB n=100
10 Correct 11 ms 23784 KB n=100
11 Correct 11 ms 23756 KB n=100
12 Correct 14 ms 23756 KB n=100
13 Correct 14 ms 23784 KB n=100
14 Correct 11 ms 23784 KB n=100
15 Correct 11 ms 23780 KB n=100
16 Correct 12 ms 23756 KB n=100
17 Correct 11 ms 23756 KB n=100
18 Correct 12 ms 23756 KB n=100
19 Correct 11 ms 23776 KB n=100
20 Correct 12 ms 23756 KB n=100
21 Correct 11 ms 23780 KB n=100
22 Correct 12 ms 23756 KB n=100
23 Correct 12 ms 23756 KB n=100
24 Correct 13 ms 23756 KB n=100
25 Correct 12 ms 23780 KB n=100
26 Correct 11 ms 23756 KB n=12
27 Correct 11 ms 23756 KB n=100
28 Correct 12 ms 23856 KB n=500
29 Correct 12 ms 23952 KB n=500
30 Correct 13 ms 23884 KB n=500
31 Correct 13 ms 23884 KB n=500
32 Correct 12 ms 23884 KB n=500
33 Correct 13 ms 23916 KB n=500
34 Correct 13 ms 23884 KB n=500
35 Correct 12 ms 23884 KB n=500
36 Correct 13 ms 23884 KB n=500
37 Correct 16 ms 23884 KB n=500
38 Correct 13 ms 23920 KB n=500
39 Correct 13 ms 23924 KB n=500
40 Correct 13 ms 23884 KB n=500
41 Correct 13 ms 23924 KB n=500
42 Correct 12 ms 23884 KB n=500
43 Correct 13 ms 23904 KB n=500
44 Correct 12 ms 23888 KB n=500
45 Correct 12 ms 23916 KB n=500
46 Correct 13 ms 23916 KB n=500
47 Correct 13 ms 23916 KB n=500
48 Correct 13 ms 23840 KB n=500
49 Correct 12 ms 23884 KB n=500
50 Correct 13 ms 23920 KB n=500
51 Correct 13 ms 23884 KB n=500
52 Correct 13 ms 23884 KB n=500
53 Correct 13 ms 23920 KB n=500
54 Correct 13 ms 23884 KB n=500
55 Correct 13 ms 23884 KB n=278
56 Correct 13 ms 23884 KB n=500
57 Correct 13 ms 23884 KB n=500
58 Correct 13 ms 23924 KB n=500
59 Correct 17 ms 24268 KB n=2000
60 Correct 17 ms 24304 KB n=2000
61 Correct 20 ms 24396 KB n=2000
62 Correct 17 ms 24220 KB n=2000
63 Correct 17 ms 24268 KB n=2000
64 Correct 17 ms 24268 KB n=2000
65 Correct 17 ms 24180 KB n=2000
66 Correct 18 ms 24308 KB n=2000
67 Correct 17 ms 24268 KB n=2000
68 Correct 17 ms 24268 KB n=2000
69 Correct 17 ms 24288 KB n=2000
70 Correct 18 ms 24180 KB n=2000
71 Correct 18 ms 24268 KB n=2000
72 Correct 18 ms 24180 KB n=2000
73 Correct 19 ms 24280 KB n=2000
74 Correct 16 ms 24268 KB n=1844
75 Correct 17 ms 24180 KB n=2000
76 Correct 17 ms 24268 KB n=2000
77 Correct 17 ms 24268 KB n=2000
78 Correct 17 ms 24176 KB n=2000
79 Correct 19 ms 24240 KB n=2000
80 Correct 17 ms 24268 KB n=2000
81 Correct 17 ms 24268 KB n=2000
82 Correct 17 ms 24176 KB n=2000
83 Correct 17 ms 24356 KB n=2000
84 Correct 17 ms 24180 KB n=2000
85 Correct 17 ms 24312 KB n=2000
86 Correct 18 ms 24212 KB n=2000
87 Correct 17 ms 24180 KB n=2000
88 Correct 16 ms 24396 KB n=2000
89 Correct 16 ms 24304 KB n=2000
90 Correct 17 ms 24304 KB n=2000
91 Correct 18 ms 24268 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23756 KB n=5
2 Correct 12 ms 23756 KB n=100
3 Correct 11 ms 23760 KB n=100
4 Correct 12 ms 23796 KB n=100
5 Correct 12 ms 23784 KB n=100
6 Correct 11 ms 23756 KB n=100
7 Correct 11 ms 23756 KB n=100
8 Correct 11 ms 23704 KB n=100
9 Correct 12 ms 23756 KB n=100
10 Correct 11 ms 23784 KB n=100
11 Correct 11 ms 23756 KB n=100
12 Correct 14 ms 23756 KB n=100
13 Correct 14 ms 23784 KB n=100
14 Correct 11 ms 23784 KB n=100
15 Correct 11 ms 23780 KB n=100
16 Correct 12 ms 23756 KB n=100
17 Correct 11 ms 23756 KB n=100
18 Correct 12 ms 23756 KB n=100
19 Correct 11 ms 23776 KB n=100
20 Correct 12 ms 23756 KB n=100
21 Correct 11 ms 23780 KB n=100
22 Correct 12 ms 23756 KB n=100
23 Correct 12 ms 23756 KB n=100
24 Correct 13 ms 23756 KB n=100
25 Correct 12 ms 23780 KB n=100
26 Correct 11 ms 23756 KB n=12
27 Correct 11 ms 23756 KB n=100
28 Correct 12 ms 23856 KB n=500
29 Correct 12 ms 23952 KB n=500
30 Correct 13 ms 23884 KB n=500
31 Correct 13 ms 23884 KB n=500
32 Correct 12 ms 23884 KB n=500
33 Correct 13 ms 23916 KB n=500
34 Correct 13 ms 23884 KB n=500
35 Correct 12 ms 23884 KB n=500
36 Correct 13 ms 23884 KB n=500
37 Correct 16 ms 23884 KB n=500
38 Correct 13 ms 23920 KB n=500
39 Correct 13 ms 23924 KB n=500
40 Correct 13 ms 23884 KB n=500
41 Correct 13 ms 23924 KB n=500
42 Correct 12 ms 23884 KB n=500
43 Correct 13 ms 23904 KB n=500
44 Correct 12 ms 23888 KB n=500
45 Correct 12 ms 23916 KB n=500
46 Correct 13 ms 23916 KB n=500
47 Correct 13 ms 23916 KB n=500
48 Correct 13 ms 23840 KB n=500
49 Correct 12 ms 23884 KB n=500
50 Correct 13 ms 23920 KB n=500
51 Correct 13 ms 23884 KB n=500
52 Correct 13 ms 23884 KB n=500
53 Correct 13 ms 23920 KB n=500
54 Correct 13 ms 23884 KB n=500
55 Correct 13 ms 23884 KB n=278
56 Correct 13 ms 23884 KB n=500
57 Correct 13 ms 23884 KB n=500
58 Correct 13 ms 23924 KB n=500
59 Correct 17 ms 24268 KB n=2000
60 Correct 17 ms 24304 KB n=2000
61 Correct 20 ms 24396 KB n=2000
62 Correct 17 ms 24220 KB n=2000
63 Correct 17 ms 24268 KB n=2000
64 Correct 17 ms 24268 KB n=2000
65 Correct 17 ms 24180 KB n=2000
66 Correct 18 ms 24308 KB n=2000
67 Correct 17 ms 24268 KB n=2000
68 Correct 17 ms 24268 KB n=2000
69 Correct 17 ms 24288 KB n=2000
70 Correct 18 ms 24180 KB n=2000
71 Correct 18 ms 24268 KB n=2000
72 Correct 18 ms 24180 KB n=2000
73 Correct 19 ms 24280 KB n=2000
74 Correct 16 ms 24268 KB n=1844
75 Correct 17 ms 24180 KB n=2000
76 Correct 17 ms 24268 KB n=2000
77 Correct 17 ms 24268 KB n=2000
78 Correct 17 ms 24176 KB n=2000
79 Correct 19 ms 24240 KB n=2000
80 Correct 17 ms 24268 KB n=2000
81 Correct 17 ms 24268 KB n=2000
82 Correct 17 ms 24176 KB n=2000
83 Correct 17 ms 24356 KB n=2000
84 Correct 17 ms 24180 KB n=2000
85 Correct 17 ms 24312 KB n=2000
86 Correct 18 ms 24212 KB n=2000
87 Correct 17 ms 24180 KB n=2000
88 Correct 16 ms 24396 KB n=2000
89 Correct 16 ms 24304 KB n=2000
90 Correct 17 ms 24304 KB n=2000
91 Correct 18 ms 24268 KB n=2000
92 Correct 980 ms 73648 KB n=200000
93 Correct 1141 ms 80244 KB n=200000
94 Correct 1091 ms 84660 KB n=200000
95 Correct 937 ms 73400 KB n=200000
96 Correct 959 ms 73756 KB n=200000
97 Correct 1240 ms 78940 KB n=200000
98 Correct 1008 ms 73652 KB n=200000
99 Correct 1177 ms 73828 KB n=200000
100 Correct 970 ms 73516 KB n=200000
101 Correct 1053 ms 86280 KB n=200000
102 Correct 828 ms 74692 KB n=200000
103 Correct 846 ms 74676 KB n=200000
104 Correct 846 ms 74736 KB n=200000
105 Correct 874 ms 75072 KB n=200000
106 Correct 859 ms 75128 KB n=200000
107 Correct 856 ms 75124 KB n=200000
108 Correct 1014 ms 73540 KB n=200000
109 Correct 1018 ms 73668 KB n=200000
110 Correct 1018 ms 73544 KB n=200000
111 Correct 961 ms 73016 KB n=200000
112 Correct 1093 ms 84880 KB n=200000
113 Correct 1120 ms 78916 KB n=200000
114 Correct 1037 ms 73144 KB n=200000
115 Correct 1242 ms 76168 KB n=200000
116 Correct 916 ms 73780 KB n=200000
117 Correct 1036 ms 85572 KB n=200000
118 Correct 1149 ms 77456 KB n=200000
119 Correct 912 ms 73740 KB n=200000
120 Correct 1008 ms 85436 KB n=200000
121 Correct 1056 ms 85256 KB n=200000
122 Correct 1000 ms 85572 KB n=200000
123 Correct 886 ms 74932 KB n=200000
124 Correct 279 ms 39168 KB n=25264