oj.uz

Submission #851022

# Submission time Handle Problem Language Result Execution time Memory
851022 2023-09-18T08:33:38 Z wakandaaa Birthday gift (IZhO18_treearray) C++17
100 / 100
 1142 ms 191336 KB 
#include <bits/stdc++.h>

using namespace std;

#define file ""

#define mp make_pair
#define fi first
#define se second
#define all(x) x.begin(), x.end()

#define getbit(x, i) (((x) >> (i)) & 1)
#define bit(x) (1LL << (x))
#define popcount __builtin_popcountll

mt19937_64 rd(chrono::steady_clock::now().time_since_epoch().count());
int rand(int l, int r) {
    return l + rd() % (r - l + 1);
}

const int N = 1e6 + 5;
const int mod = (int)1e9 + 7; // 998244353;
const int lg = 25; // lg + 1
const int oo = 1e9;
const long long ooo = 1e18;

template<class X, class Y> bool mini(X &a, Y b) {
    return a > b ? (a = b, true) : false;
}
template<class X, class Y> bool maxi(X &a, Y b) {
    return a < b ? (a = b, true) : false;
}
void add(int &a, int b) {
    a += b;
    if (a >= mod) a -= mod;
    if (a < 0) a += mod;
}

int n, m, q;
vector<int> adj[N];
int h[N], par[N][lg + 1];
int a[N];
set<int> pos[N], f[N];

void dfs(int u, int p) {
	par[u][0] = p;
	for (int i = 1; i <= lg; ++i) par[u][i] = par[par[u][i - 1]][i - 1];
	for (int v : adj[u]) if (v != p) {
		h[v] = h[u] + 1;
		dfs(v, u);
	}
}
int lca(int u, int v) {
	if (h[u] < h[v]) swap(u, v);
	for (int i = lg; i >= 0; --i) if (h[par[u][i]] >= h[v]) u = par[u][i];
	if (u == v) return u;
	for (int i = lg; i >= 0; --i) if (par[u][i] != par[v][i]) {
		u = par[u][i];
		v = par[v][i];
	}
	return par[u][0];
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);

    // freopen(file".inp", "r", stdin);
    // freopen(file".out", "w", stdout);

    cin >> n >> m >> q;
    for (int i = 1; i < n; ++i) {
    	int u, v;
    	cin >> u >> v;
    	adj[u].push_back(v);
    	adj[v].push_back(u);
    }

    h[0] = -1;
    dfs(1, 0);

    for (int i = 1; i <= m; ++i) {
    	cin >> a[i];
    	pos[a[i]].insert(i);
    }
    for (int i = 2; i <= m; ++i) {
    	f[lca(a[i - 1], a[i])].insert(i - 1);
    }

    while (q--) {
    	int op;
    	cin >> op;
    	if (op == 1) {
    		int id, v;
    		cin >> id >> v;
    		if (id > 1) f[lca(a[id - 1], a[id])].erase(id - 1);
    		if (id < m) f[lca(a[id], a[id + 1])].erase(id);
    		pos[a[id]].erase(id);
    		a[id] = v;
    		if (id > 1) f[lca(a[id - 1], a[id])].insert(id - 1);
    		if (id < m) f[lca(a[id], a[id + 1])].insert(id);
    		pos[a[id]].insert(id);
    	}
    	else {
    		int l, r, v;
    		cin >> l >> r >> v;
    		auto it = pos[v].lower_bound(l);
    		if (it != pos[v].end() && *it <= r) {
    			cout << *it << ' ' << *it << '\n';
    		}
    		else {
    			it = f[v].lower_bound(l);
    			if (it != f[v].end() && *it + 1 <= r) {
    				cout << *it << ' ' << *it + 1 << '\n';
    			}
    			else {
    				cout << -1 << ' ' << -1 << '\n';
    			}
    		}
    	}
    }

    return 0;
}

/*

*/

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 122708 KB n=5
2 Correct 25 ms 122704 KB n=100
3 Correct 24 ms 122716 KB n=100
4 Correct 24 ms 122716 KB n=100
5 Correct 24 ms 122716 KB n=100
6 Correct 25 ms 122800 KB n=100
7 Correct 24 ms 122712 KB n=100
8 Correct 26 ms 122716 KB n=100
9 Correct 25 ms 122704 KB n=100
10 Correct 25 ms 122712 KB n=100
11 Correct 26 ms 122964 KB n=100
12 Correct 25 ms 122712 KB n=100
13 Correct 24 ms 122716 KB n=100
14 Correct 25 ms 122716 KB n=100
15 Correct 24 ms 122716 KB n=100
16 Correct 24 ms 122716 KB n=100
17 Correct 24 ms 122704 KB n=100
18 Correct 25 ms 122748 KB n=100
19 Correct 25 ms 122716 KB n=100
20 Correct 24 ms 122716 KB n=100
21 Correct 26 ms 122768 KB n=100
22 Correct 24 ms 122716 KB n=100
23 Correct 24 ms 122580 KB n=100
24 Correct 27 ms 122968 KB n=100
25 Correct 24 ms 122716 KB n=100
26 Correct 25 ms 122716 KB n=12
27 Correct 24 ms 122712 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 122708 KB n=5
2 Correct 25 ms 122704 KB n=100
3 Correct 24 ms 122716 KB n=100
4 Correct 24 ms 122716 KB n=100
5 Correct 24 ms 122716 KB n=100
6 Correct 25 ms 122800 KB n=100
7 Correct 24 ms 122712 KB n=100
8 Correct 26 ms 122716 KB n=100
9 Correct 25 ms 122704 KB n=100
10 Correct 25 ms 122712 KB n=100
11 Correct 26 ms 122964 KB n=100
12 Correct 25 ms 122712 KB n=100
13 Correct 24 ms 122716 KB n=100
14 Correct 25 ms 122716 KB n=100
15 Correct 24 ms 122716 KB n=100
16 Correct 24 ms 122716 KB n=100
17 Correct 24 ms 122704 KB n=100
18 Correct 25 ms 122748 KB n=100
19 Correct 25 ms 122716 KB n=100
20 Correct 24 ms 122716 KB n=100
21 Correct 26 ms 122768 KB n=100
22 Correct 24 ms 122716 KB n=100
23 Correct 24 ms 122580 KB n=100
24 Correct 27 ms 122968 KB n=100
25 Correct 24 ms 122716 KB n=100
26 Correct 25 ms 122716 KB n=12
27 Correct 24 ms 122712 KB n=100
28 Correct 24 ms 122716 KB n=500
29 Correct 25 ms 122728 KB n=500
30 Correct 25 ms 122756 KB n=500
31 Correct 24 ms 122892 KB n=500
32 Correct 25 ms 122716 KB n=500
33 Correct 28 ms 122844 KB n=500
34 Correct 25 ms 122712 KB n=500
35 Correct 25 ms 122716 KB n=500
36 Correct 24 ms 122792 KB n=500
37 Correct 25 ms 122712 KB n=500
38 Correct 26 ms 122744 KB n=500
39 Correct 26 ms 122708 KB n=500
40 Correct 24 ms 122712 KB n=500
41 Correct 25 ms 122764 KB n=500
42 Correct 27 ms 122712 KB n=500
43 Correct 25 ms 122712 KB n=500
44 Correct 25 ms 122764 KB n=500
45 Correct 26 ms 122724 KB n=500
46 Correct 26 ms 122924 KB n=500
47 Correct 26 ms 122968 KB n=500
48 Correct 26 ms 122716 KB n=500
49 Correct 27 ms 122712 KB n=500
50 Correct 25 ms 122712 KB n=500
51 Correct 26 ms 122716 KB n=500
52 Correct 25 ms 122716 KB n=500
53 Correct 28 ms 122980 KB n=500
54 Correct 25 ms 122716 KB n=500
55 Correct 25 ms 122716 KB n=278
56 Correct 26 ms 122716 KB n=500
57 Correct 25 ms 122716 KB n=500
58 Correct 24 ms 122716 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 122708 KB n=5
2 Correct 25 ms 122704 KB n=100
3 Correct 24 ms 122716 KB n=100
4 Correct 24 ms 122716 KB n=100
5 Correct 24 ms 122716 KB n=100
6 Correct 25 ms 122800 KB n=100
7 Correct 24 ms 122712 KB n=100
8 Correct 26 ms 122716 KB n=100
9 Correct 25 ms 122704 KB n=100
10 Correct 25 ms 122712 KB n=100
11 Correct 26 ms 122964 KB n=100
12 Correct 25 ms 122712 KB n=100
13 Correct 24 ms 122716 KB n=100
14 Correct 25 ms 122716 KB n=100
15 Correct 24 ms 122716 KB n=100
16 Correct 24 ms 122716 KB n=100
17 Correct 24 ms 122704 KB n=100
18 Correct 25 ms 122748 KB n=100
19 Correct 25 ms 122716 KB n=100
20 Correct 24 ms 122716 KB n=100
21 Correct 26 ms 122768 KB n=100
22 Correct 24 ms 122716 KB n=100
23 Correct 24 ms 122580 KB n=100
24 Correct 27 ms 122968 KB n=100
25 Correct 24 ms 122716 KB n=100
26 Correct 25 ms 122716 KB n=12
27 Correct 24 ms 122712 KB n=100
28 Correct 24 ms 122716 KB n=500
29 Correct 25 ms 122728 KB n=500
30 Correct 25 ms 122756 KB n=500
31 Correct 24 ms 122892 KB n=500
32 Correct 25 ms 122716 KB n=500
33 Correct 28 ms 122844 KB n=500
34 Correct 25 ms 122712 KB n=500
35 Correct 25 ms 122716 KB n=500
36 Correct 24 ms 122792 KB n=500
37 Correct 25 ms 122712 KB n=500
38 Correct 26 ms 122744 KB n=500
39 Correct 26 ms 122708 KB n=500
40 Correct 24 ms 122712 KB n=500
41 Correct 25 ms 122764 KB n=500
42 Correct 27 ms 122712 KB n=500
43 Correct 25 ms 122712 KB n=500
44 Correct 25 ms 122764 KB n=500
45 Correct 26 ms 122724 KB n=500
46 Correct 26 ms 122924 KB n=500
47 Correct 26 ms 122968 KB n=500
48 Correct 26 ms 122716 KB n=500
49 Correct 27 ms 122712 KB n=500
50 Correct 25 ms 122712 KB n=500
51 Correct 26 ms 122716 KB n=500
52 Correct 25 ms 122716 KB n=500
53 Correct 28 ms 122980 KB n=500
54 Correct 25 ms 122716 KB n=500
55 Correct 25 ms 122716 KB n=278
56 Correct 26 ms 122716 KB n=500
57 Correct 25 ms 122716 KB n=500
58 Correct 24 ms 122716 KB n=500
59 Correct 28 ms 122968 KB n=2000
60 Correct 29 ms 123224 KB n=2000
61 Correct 29 ms 123016 KB n=2000
62 Correct 28 ms 123164 KB n=2000
63 Correct 28 ms 122972 KB n=2000
64 Correct 28 ms 122916 KB n=2000
65 Correct 29 ms 122972 KB n=2000
66 Correct 27 ms 122972 KB n=2000
67 Correct 28 ms 122964 KB n=2000
68 Correct 27 ms 122960 KB n=2000
69 Correct 27 ms 122972 KB n=2000
70 Correct 26 ms 122968 KB n=2000
71 Correct 27 ms 122968 KB n=2000
72 Correct 26 ms 122972 KB n=2000
73 Correct 26 ms 122968 KB n=2000
74 Correct 27 ms 122948 KB n=1844
75 Correct 26 ms 122968 KB n=2000
76 Correct 31 ms 122972 KB n=2000
77 Correct 28 ms 122972 KB n=2000
78 Correct 29 ms 122912 KB n=2000
79 Correct 28 ms 122972 KB n=2000
80 Correct 27 ms 123228 KB n=2000
81 Correct 28 ms 122968 KB n=2000
82 Correct 28 ms 122972 KB n=2000
83 Correct 29 ms 123188 KB n=2000
84 Correct 28 ms 123224 KB n=2000
85 Correct 27 ms 122988 KB n=2000
86 Correct 27 ms 122972 KB n=2000
87 Correct 27 ms 122968 KB n=2000
88 Correct 29 ms 123228 KB n=2000
89 Correct 28 ms 123092 KB n=2000
90 Correct 31 ms 123216 KB n=2000
91 Correct 28 ms 123076 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 122708 KB n=5
2 Correct 25 ms 122704 KB n=100
3 Correct 24 ms 122716 KB n=100
4 Correct 24 ms 122716 KB n=100
5 Correct 24 ms 122716 KB n=100
6 Correct 25 ms 122800 KB n=100
7 Correct 24 ms 122712 KB n=100
8 Correct 26 ms 122716 KB n=100
9 Correct 25 ms 122704 KB n=100
10 Correct 25 ms 122712 KB n=100
11 Correct 26 ms 122964 KB n=100
12 Correct 25 ms 122712 KB n=100
13 Correct 24 ms 122716 KB n=100
14 Correct 25 ms 122716 KB n=100
15 Correct 24 ms 122716 KB n=100
16 Correct 24 ms 122716 KB n=100
17 Correct 24 ms 122704 KB n=100
18 Correct 25 ms 122748 KB n=100
19 Correct 25 ms 122716 KB n=100
20 Correct 24 ms 122716 KB n=100
21 Correct 26 ms 122768 KB n=100
22 Correct 24 ms 122716 KB n=100
23 Correct 24 ms 122580 KB n=100
24 Correct 27 ms 122968 KB n=100
25 Correct 24 ms 122716 KB n=100
26 Correct 25 ms 122716 KB n=12
27 Correct 24 ms 122712 KB n=100
28 Correct 24 ms 122716 KB n=500
29 Correct 25 ms 122728 KB n=500
30 Correct 25 ms 122756 KB n=500
31 Correct 24 ms 122892 KB n=500
32 Correct 25 ms 122716 KB n=500
33 Correct 28 ms 122844 KB n=500
34 Correct 25 ms 122712 KB n=500
35 Correct 25 ms 122716 KB n=500
36 Correct 24 ms 122792 KB n=500
37 Correct 25 ms 122712 KB n=500
38 Correct 26 ms 122744 KB n=500
39 Correct 26 ms 122708 KB n=500
40 Correct 24 ms 122712 KB n=500
41 Correct 25 ms 122764 KB n=500
42 Correct 27 ms 122712 KB n=500
43 Correct 25 ms 122712 KB n=500
44 Correct 25 ms 122764 KB n=500
45 Correct 26 ms 122724 KB n=500
46 Correct 26 ms 122924 KB n=500
47 Correct 26 ms 122968 KB n=500
48 Correct 26 ms 122716 KB n=500
49 Correct 27 ms 122712 KB n=500
50 Correct 25 ms 122712 KB n=500
51 Correct 26 ms 122716 KB n=500
52 Correct 25 ms 122716 KB n=500
53 Correct 28 ms 122980 KB n=500
54 Correct 25 ms 122716 KB n=500
55 Correct 25 ms 122716 KB n=278
56 Correct 26 ms 122716 KB n=500
57 Correct 25 ms 122716 KB n=500
58 Correct 24 ms 122716 KB n=500
59 Correct 28 ms 122968 KB n=2000
60 Correct 29 ms 123224 KB n=2000
61 Correct 29 ms 123016 KB n=2000
62 Correct 28 ms 123164 KB n=2000
63 Correct 28 ms 122972 KB n=2000
64 Correct 28 ms 122916 KB n=2000
65 Correct 29 ms 122972 KB n=2000
66 Correct 27 ms 122972 KB n=2000
67 Correct 28 ms 122964 KB n=2000
68 Correct 27 ms 122960 KB n=2000
69 Correct 27 ms 122972 KB n=2000
70 Correct 26 ms 122968 KB n=2000
71 Correct 27 ms 122968 KB n=2000
72 Correct 26 ms 122972 KB n=2000
73 Correct 26 ms 122968 KB n=2000
74 Correct 27 ms 122948 KB n=1844
75 Correct 26 ms 122968 KB n=2000
76 Correct 31 ms 122972 KB n=2000
77 Correct 28 ms 122972 KB n=2000
78 Correct 29 ms 122912 KB n=2000
79 Correct 28 ms 122972 KB n=2000
80 Correct 27 ms 123228 KB n=2000
81 Correct 28 ms 122968 KB n=2000
82 Correct 28 ms 122972 KB n=2000
83 Correct 29 ms 123188 KB n=2000
84 Correct 28 ms 123224 KB n=2000
85 Correct 27 ms 122988 KB n=2000
86 Correct 27 ms 122972 KB n=2000
87 Correct 27 ms 122968 KB n=2000
88 Correct 29 ms 123228 KB n=2000
89 Correct 28 ms 123092 KB n=2000
90 Correct 31 ms 123216 KB n=2000
91 Correct 28 ms 123076 KB n=2000
92 Correct 695 ms 178772 KB n=200000
93 Correct 1049 ms 185264 KB n=200000
94 Correct 1104 ms 190168 KB n=200000
95 Correct 670 ms 178700 KB n=200000
96 Correct 647 ms 178768 KB n=200000
97 Correct 1142 ms 184252 KB n=200000
98 Correct 646 ms 178672 KB n=200000
99 Correct 746 ms 178876 KB n=200000
100 Correct 679 ms 178600 KB n=200000
101 Correct 960 ms 191336 KB n=200000
102 Correct 351 ms 179808 KB n=200000
103 Correct 337 ms 179792 KB n=200000
104 Correct 345 ms 179748 KB n=200000
105 Correct 341 ms 180308 KB n=200000
106 Correct 337 ms 180248 KB n=200000
107 Correct 349 ms 180344 KB n=200000
108 Correct 687 ms 178680 KB n=200000
109 Correct 661 ms 178788 KB n=200000
110 Correct 786 ms 178776 KB n=200000
111 Correct 612 ms 178392 KB n=200000
112 Correct 1101 ms 190004 KB n=200000
113 Correct 991 ms 184072 KB n=200000
114 Correct 605 ms 178028 KB n=200000
115 Correct 1068 ms 181208 KB n=200000
116 Correct 651 ms 178784 KB n=200000
117 Correct 1008 ms 190516 KB n=200000
118 Correct 1036 ms 182832 KB n=200000
119 Correct 646 ms 178784 KB n=200000
120 Correct 813 ms 190288 KB n=200000
121 Correct 877 ms 190428 KB n=200000
122 Correct 969 ms 190812 KB n=200000
123 Correct 377 ms 180100 KB n=200000
124 Correct 172 ms 137556 KB n=25264