oj.uz

Submission #909417

# Submission time Handle Problem Language Result Execution time Memory
909417 2024-01-17T08:00:32 Z penguin133 Birthday gift (IZhO18_treearray) C++17
56 / 100
 4000 ms 89176 KB 
#include <bits/stdc++.h>
using namespace std;

#define int long long
#define pi pair<int, int>
#define pii pair<int, pi>
#define fi first
#define se second
#ifdef _WIN32
#define getchar_unlocked _getchar_nolock
#endif
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());

int n, m, q;
vector <int> adj[300005];
multiset <int> ms[300005];
int S[300005], E[300005], cnt = 1, par[20][200005], dep[200005];

void dfs(int x, int p, int d){
	S[x] = cnt++;
	par[0][x] = p;
	dep[x] = d;
	for(auto i : adj[x])if(i != p)dfs(i, x, d + 1);
	E[x] = cnt - 1;
}

int lca(int u, int v){
	if(dep[u] > dep[v])swap(u, v);
	int df = dep[v] - dep[u];
	for(int i=0;i<19;i++)if(df >> i & 1)v = par[i][v];
	if(u == v)return u;
	for(int i=19;i>=0;i--){
		if(par[i][u] != par[i][v])u = par[i][u], v = par[i][v];
	}
	return par[0][u];
}
int back[300005];
struct node{
	int s, e, m, mn, mx;
	node *l, *r;
	node(int _s, int _e){
		s = _s, e = _e, m = (s + e) >> 1;
		if(s != e)l = new node(s, m), r = new node(m+1, e);
		mn = 1e9, mx = 0;
	}
	
	void upd(int p, int v, int v2){
		if(s == e)mn = v, mx = v2;
		else{
			if(p <= m)l->upd(p, v, v2);
			else r->upd(p, v, v2);
			mn = min(l->mn, r->mn);
			mx = max(l->mx, r->mx);
		}
	}
	
	pi qry(int a, int b){
		if(s == a && e == b)return {mn, mx};
		else if(b <= m)return l->qry(a, b);
		else if(a > m)return r->qry(a ,b);
		else {
			pi lft = l->qry(a, m), rgt = r->qry(m+1, b);
			lft.fi = min(lft.fi, rgt.fi);
			lft.se = max(lft.se, rgt.se);
			return lft;
		}
	}
}*root;

int A[300005];

void solve(){
	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, 1);
	for(int i=1;i<=m;i++)cin >> A[i], ms[A[i]].insert(i);
	/*
	root = new node(1, n);
	for(int i=1;i<=n;i++){
		if(!ms[i].empty()){
			auto it = ms[i].begin(), it2 = --ms[i].end();
			root->upd(S[i], *it, *it2);
		}
	}
	*/
	for(int i=1;i<=n;i++)back[S[i]] = i;
	for(int i=1;i<=19;i++)for(int j=1;j<=n;j++)par[i][j] = par[i-1][par[i-1][j]];
	while(q--){
		int t; cin >> t;
		if(t == 1){
			int x, y; cin >> x >> y;
			/*
			ms[A[x]].erase(ms[A[x]].find(i));
			if(!ms[A[x]].empty()){
				auto it = ms[A[x]].begin(), it2 = --ms[A[x]].end();
				root->upd(S[i], *it, *it2);
			}
			else root->upd(S[i], 1e9, 0);
			A[x] = y;
			ms[y].insert(i);
			if(!ms[y].empty()){
				auto it = ms[y].begin(), it2 = --ms[y].end();
				root->upd(S[y], *it, *it2);
			}
			*/
			A[x] = y;
		}
		else{
			int l, r, v; cin >> l >> r >> v;
			int mn = 1e9, mx = 0, f = 0, st = l;
			for(int i = l; i <= r; i++){
				if(S[A[i]] < S[v] || S[A[i]] > E[v]){
					mn = 1e9; mx = 0;
					st = i + 1;
					continue;
				}
				mn = min(mn, S[A[i]]);
				mx = max(mx, S[A[i]]);
				if(lca(back[mn], back[mx]) == v){
					f = 1;
					cout << st << ' ' << i << '\n';
					break;
				}
			}
			if(!f)cout << -1 << ' ' << -1 << '\n';
		}
	}
}

main(){
	ios::sync_with_stdio(0);cin.tie(0);
	int tc = 1;
	//cin >> tc;
	for(int tc1=1;tc1<=tc;tc1++){
		// cout << "Case #" << tc1 << ": ";
		solve();
	}
}

Compilation message

treearray.cpp:134:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  134 | main(){
      | ^~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 61528 KB n=5
2 Correct 13 ms 61528 KB n=100
3 Correct 14 ms 61528 KB n=100
4 Correct 13 ms 61532 KB n=100
5 Correct 13 ms 61532 KB n=100
6 Correct 13 ms 61564 KB n=100
7 Correct 13 ms 61532 KB n=100
8 Correct 13 ms 61544 KB n=100
9 Correct 13 ms 61528 KB n=100
10 Correct 15 ms 61516 KB n=100
11 Correct 14 ms 61528 KB n=100
12 Correct 13 ms 61528 KB n=100
13 Correct 14 ms 61528 KB n=100
14 Correct 13 ms 61644 KB n=100
15 Correct 13 ms 61532 KB n=100
16 Correct 13 ms 61528 KB n=100
17 Correct 13 ms 61528 KB n=100
18 Correct 13 ms 61532 KB n=100
19 Correct 13 ms 61532 KB n=100
20 Correct 13 ms 61528 KB n=100
21 Correct 13 ms 61532 KB n=100
22 Correct 14 ms 61532 KB n=100
23 Correct 13 ms 61616 KB n=100
24 Correct 14 ms 61532 KB n=100
25 Correct 13 ms 61532 KB n=100
26 Correct 14 ms 61528 KB n=12
27 Correct 13 ms 61532 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 61528 KB n=5
2 Correct 13 ms 61528 KB n=100
3 Correct 14 ms 61528 KB n=100
4 Correct 13 ms 61532 KB n=100
5 Correct 13 ms 61532 KB n=100
6 Correct 13 ms 61564 KB n=100
7 Correct 13 ms 61532 KB n=100
8 Correct 13 ms 61544 KB n=100
9 Correct 13 ms 61528 KB n=100
10 Correct 15 ms 61516 KB n=100
11 Correct 14 ms 61528 KB n=100
12 Correct 13 ms 61528 KB n=100
13 Correct 14 ms 61528 KB n=100
14 Correct 13 ms 61644 KB n=100
15 Correct 13 ms 61532 KB n=100
16 Correct 13 ms 61528 KB n=100
17 Correct 13 ms 61528 KB n=100
18 Correct 13 ms 61532 KB n=100
19 Correct 13 ms 61532 KB n=100
20 Correct 13 ms 61528 KB n=100
21 Correct 13 ms 61532 KB n=100
22 Correct 14 ms 61532 KB n=100
23 Correct 13 ms 61616 KB n=100
24 Correct 14 ms 61532 KB n=100
25 Correct 13 ms 61532 KB n=100
26 Correct 14 ms 61528 KB n=12
27 Correct 13 ms 61532 KB n=100
28 Correct 14 ms 61528 KB n=500
29 Correct 14 ms 61532 KB n=500
30 Correct 14 ms 61528 KB n=500
31 Correct 14 ms 61532 KB n=500
32 Correct 13 ms 61528 KB n=500
33 Correct 14 ms 61704 KB n=500
34 Correct 13 ms 61532 KB n=500
35 Correct 13 ms 61532 KB n=500
36 Correct 15 ms 61652 KB n=500
37 Correct 15 ms 61528 KB n=500
38 Correct 15 ms 61528 KB n=500
39 Correct 13 ms 61532 KB n=500
40 Correct 14 ms 61532 KB n=500
41 Correct 16 ms 61528 KB n=500
42 Correct 15 ms 61532 KB n=500
43 Correct 16 ms 61656 KB n=500
44 Correct 15 ms 61528 KB n=500
45 Correct 14 ms 61668 KB n=500
46 Correct 14 ms 61528 KB n=500
47 Correct 14 ms 61528 KB n=500
48 Correct 13 ms 61532 KB n=500
49 Correct 14 ms 61528 KB n=500
50 Correct 14 ms 61528 KB n=500
51 Correct 14 ms 61528 KB n=500
52 Correct 14 ms 61532 KB n=500
53 Correct 16 ms 61528 KB n=500
54 Correct 15 ms 61676 KB n=500
55 Correct 13 ms 61532 KB n=278
56 Correct 15 ms 61532 KB n=500
57 Correct 17 ms 61532 KB n=500
58 Correct 14 ms 61580 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 61528 KB n=5
2 Correct 13 ms 61528 KB n=100
3 Correct 14 ms 61528 KB n=100
4 Correct 13 ms 61532 KB n=100
5 Correct 13 ms 61532 KB n=100
6 Correct 13 ms 61564 KB n=100
7 Correct 13 ms 61532 KB n=100
8 Correct 13 ms 61544 KB n=100
9 Correct 13 ms 61528 KB n=100
10 Correct 15 ms 61516 KB n=100
11 Correct 14 ms 61528 KB n=100
12 Correct 13 ms 61528 KB n=100
13 Correct 14 ms 61528 KB n=100
14 Correct 13 ms 61644 KB n=100
15 Correct 13 ms 61532 KB n=100
16 Correct 13 ms 61528 KB n=100
17 Correct 13 ms 61528 KB n=100
18 Correct 13 ms 61532 KB n=100
19 Correct 13 ms 61532 KB n=100
20 Correct 13 ms 61528 KB n=100
21 Correct 13 ms 61532 KB n=100
22 Correct 14 ms 61532 KB n=100
23 Correct 13 ms 61616 KB n=100
24 Correct 14 ms 61532 KB n=100
25 Correct 13 ms 61532 KB n=100
26 Correct 14 ms 61528 KB n=12
27 Correct 13 ms 61532 KB n=100
28 Correct 14 ms 61528 KB n=500
29 Correct 14 ms 61532 KB n=500
30 Correct 14 ms 61528 KB n=500
31 Correct 14 ms 61532 KB n=500
32 Correct 13 ms 61528 KB n=500
33 Correct 14 ms 61704 KB n=500
34 Correct 13 ms 61532 KB n=500
35 Correct 13 ms 61532 KB n=500
36 Correct 15 ms 61652 KB n=500
37 Correct 15 ms 61528 KB n=500
38 Correct 15 ms 61528 KB n=500
39 Correct 13 ms 61532 KB n=500
40 Correct 14 ms 61532 KB n=500
41 Correct 16 ms 61528 KB n=500
42 Correct 15 ms 61532 KB n=500
43 Correct 16 ms 61656 KB n=500
44 Correct 15 ms 61528 KB n=500
45 Correct 14 ms 61668 KB n=500
46 Correct 14 ms 61528 KB n=500
47 Correct 14 ms 61528 KB n=500
48 Correct 13 ms 61532 KB n=500
49 Correct 14 ms 61528 KB n=500
50 Correct 14 ms 61528 KB n=500
51 Correct 14 ms 61528 KB n=500
52 Correct 14 ms 61532 KB n=500
53 Correct 16 ms 61528 KB n=500
54 Correct 15 ms 61676 KB n=500
55 Correct 13 ms 61532 KB n=278
56 Correct 15 ms 61532 KB n=500
57 Correct 17 ms 61532 KB n=500
58 Correct 14 ms 61580 KB n=500
59 Correct 14 ms 61784 KB n=2000
60 Correct 25 ms 61932 KB n=2000
61 Correct 27 ms 61784 KB n=2000
62 Correct 28 ms 61836 KB n=2000
63 Correct 17 ms 61788 KB n=2000
64 Correct 25 ms 61788 KB n=2000
65 Correct 16 ms 61884 KB n=2000
66 Correct 27 ms 61788 KB n=2000
67 Correct 15 ms 61764 KB n=2000
68 Correct 27 ms 61784 KB n=2000
69 Correct 32 ms 61892 KB n=2000
70 Correct 32 ms 61788 KB n=2000
71 Correct 32 ms 61880 KB n=2000
72 Correct 28 ms 61788 KB n=2000
73 Correct 23 ms 61788 KB n=2000
74 Correct 16 ms 61824 KB n=1844
75 Correct 25 ms 61788 KB n=2000
76 Correct 34 ms 61784 KB n=2000
77 Correct 32 ms 61788 KB n=2000
78 Correct 36 ms 61788 KB n=2000
79 Correct 15 ms 61788 KB n=2000
80 Correct 24 ms 61788 KB n=2000
81 Correct 25 ms 61696 KB n=2000
82 Correct 15 ms 61900 KB n=2000
83 Correct 25 ms 61788 KB n=2000
84 Correct 17 ms 61784 KB n=2000
85 Correct 24 ms 61788 KB n=2000
86 Correct 23 ms 61784 KB n=2000
87 Correct 17 ms 61788 KB n=2000
88 Correct 50 ms 61784 KB n=2000
89 Correct 53 ms 61784 KB n=2000
90 Correct 37 ms 61940 KB n=2000
91 Correct 18 ms 61788 KB n=2000

Subtask #4
0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 61528 KB n=5
2 Correct 13 ms 61528 KB n=100
3 Correct 14 ms 61528 KB n=100
4 Correct 13 ms 61532 KB n=100
5 Correct 13 ms 61532 KB n=100
6 Correct 13 ms 61564 KB n=100
7 Correct 13 ms 61532 KB n=100
8 Correct 13 ms 61544 KB n=100
9 Correct 13 ms 61528 KB n=100
10 Correct 15 ms 61516 KB n=100
11 Correct 14 ms 61528 KB n=100
12 Correct 13 ms 61528 KB n=100
13 Correct 14 ms 61528 KB n=100
14 Correct 13 ms 61644 KB n=100
15 Correct 13 ms 61532 KB n=100
16 Correct 13 ms 61528 KB n=100
17 Correct 13 ms 61528 KB n=100
18 Correct 13 ms 61532 KB n=100
19 Correct 13 ms 61532 KB n=100
20 Correct 13 ms 61528 KB n=100
21 Correct 13 ms 61532 KB n=100
22 Correct 14 ms 61532 KB n=100
23 Correct 13 ms 61616 KB n=100
24 Correct 14 ms 61532 KB n=100
25 Correct 13 ms 61532 KB n=100
26 Correct 14 ms 61528 KB n=12
27 Correct 13 ms 61532 KB n=100
28 Correct 14 ms 61528 KB n=500
29 Correct 14 ms 61532 KB n=500
30 Correct 14 ms 61528 KB n=500
31 Correct 14 ms 61532 KB n=500
32 Correct 13 ms 61528 KB n=500
33 Correct 14 ms 61704 KB n=500
34 Correct 13 ms 61532 KB n=500
35 Correct 13 ms 61532 KB n=500
36 Correct 15 ms 61652 KB n=500
37 Correct 15 ms 61528 KB n=500
38 Correct 15 ms 61528 KB n=500
39 Correct 13 ms 61532 KB n=500
40 Correct 14 ms 61532 KB n=500
41 Correct 16 ms 61528 KB n=500
42 Correct 15 ms 61532 KB n=500
43 Correct 16 ms 61656 KB n=500
44 Correct 15 ms 61528 KB n=500
45 Correct 14 ms 61668 KB n=500
46 Correct 14 ms 61528 KB n=500
47 Correct 14 ms 61528 KB n=500
48 Correct 13 ms 61532 KB n=500
49 Correct 14 ms 61528 KB n=500
50 Correct 14 ms 61528 KB n=500
51 Correct 14 ms 61528 KB n=500
52 Correct 14 ms 61532 KB n=500
53 Correct 16 ms 61528 KB n=500
54 Correct 15 ms 61676 KB n=500
55 Correct 13 ms 61532 KB n=278
56 Correct 15 ms 61532 KB n=500
57 Correct 17 ms 61532 KB n=500
58 Correct 14 ms 61580 KB n=500
59 Correct 14 ms 61784 KB n=2000
60 Correct 25 ms 61932 KB n=2000
61 Correct 27 ms 61784 KB n=2000
62 Correct 28 ms 61836 KB n=2000
63 Correct 17 ms 61788 KB n=2000
64 Correct 25 ms 61788 KB n=2000
65 Correct 16 ms 61884 KB n=2000
66 Correct 27 ms 61788 KB n=2000
67 Correct 15 ms 61764 KB n=2000
68 Correct 27 ms 61784 KB n=2000
69 Correct 32 ms 61892 KB n=2000
70 Correct 32 ms 61788 KB n=2000
71 Correct 32 ms 61880 KB n=2000
72 Correct 28 ms 61788 KB n=2000
73 Correct 23 ms 61788 KB n=2000
74 Correct 16 ms 61824 KB n=1844
75 Correct 25 ms 61788 KB n=2000
76 Correct 34 ms 61784 KB n=2000
77 Correct 32 ms 61788 KB n=2000
78 Correct 36 ms 61788 KB n=2000
79 Correct 15 ms 61788 KB n=2000
80 Correct 24 ms 61788 KB n=2000
81 Correct 25 ms 61696 KB n=2000
82 Correct 15 ms 61900 KB n=2000
83 Correct 25 ms 61788 KB n=2000
84 Correct 17 ms 61784 KB n=2000
85 Correct 24 ms 61788 KB n=2000
86 Correct 23 ms 61784 KB n=2000
87 Correct 17 ms 61788 KB n=2000
88 Correct 50 ms 61784 KB n=2000
89 Correct 53 ms 61784 KB n=2000
90 Correct 37 ms 61940 KB n=2000
91 Correct 18 ms 61788 KB n=2000
92 Correct 583 ms 88780 KB n=200000
93 Execution timed out 4013 ms 89176 KB Time limit exceeded
94 Halted 0 ms 0 KB -