oj.uz

Submission #683776

# Submission time Handle Problem Language Result Execution time Memory
683776 2023-01-19T10:35:32 Z MateGiorbelidze Birthday gift (IZhO18_treearray) C++17
56 / 100
 97 ms 936 KB 
#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define ff first
#define sc second
#define pb push_back
#define in insert

vector <ll> g[2001], tin(2001) , tout(2001);

ll up[2001][13] , cur;

void dfs (ll v, ll p) {
	
	tin[v] = ++cur;
	
	for (int i = 1; i <= 12; i++)
		up[v][i] = up[up[v][i - 1]][i - 1];
	
	for (auto k : g[v]) {
		
		if (k == p) continue;
		
		up[k][0] = v;
		
		dfs(k , v);
		
	}
	
	tout[v] = ++cur;
	
}

bool is_par(ll a, ll b) {
	
	if (tin[a] <= tin[b] && tout[a] >= tout[b]) return 1;
	else return 0;
	
}

ll lca (ll a, ll b) {
	
	if (is_par(a , b)) return a;
	if (is_par(b , a)) return b;
	
	for (int i = 12; i >= 0; i--) {
		
		if (!is_par(up[a][i] , b)) a = up[a][i];
		
	}
	
	return up[a][0];
	
}

void dambo_12() {
	
	ll n , m , q; cin>>n>>m>>q;
	
	for (int i = 1; i < n; i++){
		ll a , b; cin>>a>>b;
		
		g[a].pb(b);
		g[b].pb(a);
	}
	
	up[1][0] = 1;
	
	dfs(1 , 1);
	
	vector <ll> a(m + 1 , 0);
	
	for (int i = 1; i <= m; i++)
		cin>>a[i];
		
	for (int it = 1; it <= q; it++) {
		
		int tp; cin>>tp;
		
		if (tp == 1) {
			
			int pos ; ll v; cin>>pos>>v;
			
			a[pos] = v;
			
		}
		else {
			
			int l , r , v; cin>>l>>r>>v;
			
			int x = -1 , y = -1;
			
			for (int i = l; i <= r; i++){
				
				int c = a[i];
				
				for (int j = i; j <= r; j++){
					
					c = lca(c , a[j]);
					
					if (c == v) {
						
						x = i; y = j; break;
						
					}
					
					if (!is_par(v , c)) break;
					
					if (j == r) x = 1;
					
				}
				
				if (x != -1) break;
				
			}
			
			if (y == -1) cout<<-1<<" "<<-1<<'\n';
			else cout<<x<<" "<<y<<'\n';
			
		}
		
	}	
	
	return;
}


int32_t main () {
	ios::sync_with_stdio(false);
    cin.tie(nullptr);
    
    ll o = 1; //cin>>o;
    
    while (o--) {
    	
    	dambo_12();
    	
	}
	
	return 0;
    
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB n=5
2 Correct 0 ms 340 KB n=100
3 Correct 1 ms 340 KB n=100
4 Correct 1 ms 340 KB n=100
5 Correct 1 ms 340 KB n=100
6 Correct 1 ms 340 KB n=100
7 Correct 1 ms 340 KB n=100
8 Correct 1 ms 408 KB n=100
9 Correct 1 ms 340 KB n=100
10 Correct 1 ms 412 KB n=100
11 Correct 1 ms 412 KB n=100
12 Correct 1 ms 340 KB n=100
13 Correct 1 ms 404 KB n=100
14 Correct 1 ms 340 KB n=100
15 Correct 1 ms 340 KB n=100
16 Correct 1 ms 340 KB n=100
17 Correct 1 ms 404 KB n=100
18 Correct 1 ms 340 KB n=100
19 Correct 1 ms 400 KB n=100
20 Correct 1 ms 340 KB n=100
21 Correct 0 ms 408 KB n=100
22 Correct 1 ms 340 KB n=100
23 Correct 1 ms 340 KB n=100
24 Correct 1 ms 404 KB n=100
25 Correct 0 ms 408 KB n=100
26 Correct 1 ms 340 KB n=12
27 Correct 1 ms 340 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB n=5
2 Correct 0 ms 340 KB n=100
3 Correct 1 ms 340 KB n=100
4 Correct 1 ms 340 KB n=100
5 Correct 1 ms 340 KB n=100
6 Correct 1 ms 340 KB n=100
7 Correct 1 ms 340 KB n=100
8 Correct 1 ms 408 KB n=100
9 Correct 1 ms 340 KB n=100
10 Correct 1 ms 412 KB n=100
11 Correct 1 ms 412 KB n=100
12 Correct 1 ms 340 KB n=100
13 Correct 1 ms 404 KB n=100
14 Correct 1 ms 340 KB n=100
15 Correct 1 ms 340 KB n=100
16 Correct 1 ms 340 KB n=100
17 Correct 1 ms 404 KB n=100
18 Correct 1 ms 340 KB n=100
19 Correct 1 ms 400 KB n=100
20 Correct 1 ms 340 KB n=100
21 Correct 0 ms 408 KB n=100
22 Correct 1 ms 340 KB n=100
23 Correct 1 ms 340 KB n=100
24 Correct 1 ms 404 KB n=100
25 Correct 0 ms 408 KB n=100
26 Correct 1 ms 340 KB n=12
27 Correct 1 ms 340 KB n=100
28 Correct 1 ms 468 KB n=500
29 Correct 1 ms 468 KB n=500
30 Correct 2 ms 420 KB n=500
31 Correct 2 ms 468 KB n=500
32 Correct 1 ms 408 KB n=500
33 Correct 3 ms 468 KB n=500
34 Correct 1 ms 468 KB n=500
35 Correct 2 ms 468 KB n=500
36 Correct 7 ms 468 KB n=500
37 Correct 6 ms 508 KB n=500
38 Correct 5 ms 468 KB n=500
39 Correct 5 ms 468 KB n=500
40 Correct 4 ms 416 KB n=500
41 Correct 4 ms 468 KB n=500
42 Correct 4 ms 468 KB n=500
43 Correct 4 ms 468 KB n=500
44 Correct 3 ms 468 KB n=500
45 Correct 1 ms 412 KB n=500
46 Correct 2 ms 468 KB n=500
47 Correct 1 ms 468 KB n=500
48 Correct 1 ms 468 KB n=500
49 Correct 2 ms 412 KB n=500
50 Correct 1 ms 468 KB n=500
51 Correct 3 ms 468 KB n=500
52 Correct 2 ms 468 KB n=500
53 Correct 2 ms 468 KB n=500
54 Correct 1 ms 468 KB n=500
55 Correct 1 ms 340 KB n=278
56 Correct 1 ms 468 KB n=500
57 Correct 1 ms 468 KB n=500
58 Correct 1 ms 420 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB n=5
2 Correct 0 ms 340 KB n=100
3 Correct 1 ms 340 KB n=100
4 Correct 1 ms 340 KB n=100
5 Correct 1 ms 340 KB n=100
6 Correct 1 ms 340 KB n=100
7 Correct 1 ms 340 KB n=100
8 Correct 1 ms 408 KB n=100
9 Correct 1 ms 340 KB n=100
10 Correct 1 ms 412 KB n=100
11 Correct 1 ms 412 KB n=100
12 Correct 1 ms 340 KB n=100
13 Correct 1 ms 404 KB n=100
14 Correct 1 ms 340 KB n=100
15 Correct 1 ms 340 KB n=100
16 Correct 1 ms 340 KB n=100
17 Correct 1 ms 404 KB n=100
18 Correct 1 ms 340 KB n=100
19 Correct 1 ms 400 KB n=100
20 Correct 1 ms 340 KB n=100
21 Correct 0 ms 408 KB n=100
22 Correct 1 ms 340 KB n=100
23 Correct 1 ms 340 KB n=100
24 Correct 1 ms 404 KB n=100
25 Correct 0 ms 408 KB n=100
26 Correct 1 ms 340 KB n=12
27 Correct 1 ms 340 KB n=100
28 Correct 1 ms 468 KB n=500
29 Correct 1 ms 468 KB n=500
30 Correct 2 ms 420 KB n=500
31 Correct 2 ms 468 KB n=500
32 Correct 1 ms 408 KB n=500
33 Correct 3 ms 468 KB n=500
34 Correct 1 ms 468 KB n=500
35 Correct 2 ms 468 KB n=500
36 Correct 7 ms 468 KB n=500
37 Correct 6 ms 508 KB n=500
38 Correct 5 ms 468 KB n=500
39 Correct 5 ms 468 KB n=500
40 Correct 4 ms 416 KB n=500
41 Correct 4 ms 468 KB n=500
42 Correct 4 ms 468 KB n=500
43 Correct 4 ms 468 KB n=500
44 Correct 3 ms 468 KB n=500
45 Correct 1 ms 412 KB n=500
46 Correct 2 ms 468 KB n=500
47 Correct 1 ms 468 KB n=500
48 Correct 1 ms 468 KB n=500
49 Correct 2 ms 412 KB n=500
50 Correct 1 ms 468 KB n=500
51 Correct 3 ms 468 KB n=500
52 Correct 2 ms 468 KB n=500
53 Correct 2 ms 468 KB n=500
54 Correct 1 ms 468 KB n=500
55 Correct 1 ms 340 KB n=278
56 Correct 1 ms 468 KB n=500
57 Correct 1 ms 468 KB n=500
58 Correct 1 ms 420 KB n=500
59 Correct 2 ms 724 KB n=2000
60 Correct 20 ms 724 KB n=2000
61 Correct 28 ms 936 KB n=2000
62 Correct 38 ms 724 KB n=2000
63 Correct 2 ms 764 KB n=2000
64 Correct 34 ms 724 KB n=2000
65 Correct 2 ms 676 KB n=2000
66 Correct 27 ms 724 KB n=2000
67 Correct 2 ms 724 KB n=2000
68 Correct 32 ms 724 KB n=2000
69 Correct 97 ms 748 KB n=2000
70 Correct 94 ms 752 KB n=2000
71 Correct 92 ms 732 KB n=2000
72 Correct 54 ms 740 KB n=2000
73 Correct 50 ms 756 KB n=2000
74 Correct 2 ms 724 KB n=1844
75 Correct 49 ms 760 KB n=2000
76 Correct 62 ms 744 KB n=2000
77 Correct 61 ms 732 KB n=2000
78 Correct 63 ms 748 KB n=2000
79 Correct 2 ms 724 KB n=2000
80 Correct 17 ms 816 KB n=2000
81 Correct 29 ms 772 KB n=2000
82 Correct 2 ms 724 KB n=2000
83 Correct 21 ms 724 KB n=2000
84 Correct 6 ms 760 KB n=2000
85 Correct 30 ms 724 KB n=2000
86 Correct 23 ms 888 KB n=2000
87 Correct 6 ms 724 KB n=2000
88 Correct 9 ms 756 KB n=2000
89 Correct 8 ms 836 KB n=2000
90 Correct 6 ms 724 KB n=2000
91 Correct 15 ms 724 KB n=2000

Subtask #4
0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB n=5
2 Correct 0 ms 340 KB n=100
3 Correct 1 ms 340 KB n=100
4 Correct 1 ms 340 KB n=100
5 Correct 1 ms 340 KB n=100
6 Correct 1 ms 340 KB n=100
7 Correct 1 ms 340 KB n=100
8 Correct 1 ms 408 KB n=100
9 Correct 1 ms 340 KB n=100
10 Correct 1 ms 412 KB n=100
11 Correct 1 ms 412 KB n=100
12 Correct 1 ms 340 KB n=100
13 Correct 1 ms 404 KB n=100
14 Correct 1 ms 340 KB n=100
15 Correct 1 ms 340 KB n=100
16 Correct 1 ms 340 KB n=100
17 Correct 1 ms 404 KB n=100
18 Correct 1 ms 340 KB n=100
19 Correct 1 ms 400 KB n=100
20 Correct 1 ms 340 KB n=100
21 Correct 0 ms 408 KB n=100
22 Correct 1 ms 340 KB n=100
23 Correct 1 ms 340 KB n=100
24 Correct 1 ms 404 KB n=100
25 Correct 0 ms 408 KB n=100
26 Correct 1 ms 340 KB n=12
27 Correct 1 ms 340 KB n=100
28 Correct 1 ms 468 KB n=500
29 Correct 1 ms 468 KB n=500
30 Correct 2 ms 420 KB n=500
31 Correct 2 ms 468 KB n=500
32 Correct 1 ms 408 KB n=500
33 Correct 3 ms 468 KB n=500
34 Correct 1 ms 468 KB n=500
35 Correct 2 ms 468 KB n=500
36 Correct 7 ms 468 KB n=500
37 Correct 6 ms 508 KB n=500
38 Correct 5 ms 468 KB n=500
39 Correct 5 ms 468 KB n=500
40 Correct 4 ms 416 KB n=500
41 Correct 4 ms 468 KB n=500
42 Correct 4 ms 468 KB n=500
43 Correct 4 ms 468 KB n=500
44 Correct 3 ms 468 KB n=500
45 Correct 1 ms 412 KB n=500
46 Correct 2 ms 468 KB n=500
47 Correct 1 ms 468 KB n=500
48 Correct 1 ms 468 KB n=500
49 Correct 2 ms 412 KB n=500
50 Correct 1 ms 468 KB n=500
51 Correct 3 ms 468 KB n=500
52 Correct 2 ms 468 KB n=500
53 Correct 2 ms 468 KB n=500
54 Correct 1 ms 468 KB n=500
55 Correct 1 ms 340 KB n=278
56 Correct 1 ms 468 KB n=500
57 Correct 1 ms 468 KB n=500
58 Correct 1 ms 420 KB n=500
59 Correct 2 ms 724 KB n=2000
60 Correct 20 ms 724 KB n=2000
61 Correct 28 ms 936 KB n=2000
62 Correct 38 ms 724 KB n=2000
63 Correct 2 ms 764 KB n=2000
64 Correct 34 ms 724 KB n=2000
65 Correct 2 ms 676 KB n=2000
66 Correct 27 ms 724 KB n=2000
67 Correct 2 ms 724 KB n=2000
68 Correct 32 ms 724 KB n=2000
69 Correct 97 ms 748 KB n=2000
70 Correct 94 ms 752 KB n=2000
71 Correct 92 ms 732 KB n=2000
72 Correct 54 ms 740 KB n=2000
73 Correct 50 ms 756 KB n=2000
74 Correct 2 ms 724 KB n=1844
75 Correct 49 ms 760 KB n=2000
76 Correct 62 ms 744 KB n=2000
77 Correct 61 ms 732 KB n=2000
78 Correct 63 ms 748 KB n=2000
79 Correct 2 ms 724 KB n=2000
80 Correct 17 ms 816 KB n=2000
81 Correct 29 ms 772 KB n=2000
82 Correct 2 ms 724 KB n=2000
83 Correct 21 ms 724 KB n=2000
84 Correct 6 ms 760 KB n=2000
85 Correct 30 ms 724 KB n=2000
86 Correct 23 ms 888 KB n=2000
87 Correct 6 ms 724 KB n=2000
88 Correct 9 ms 756 KB n=2000
89 Correct 8 ms 836 KB n=2000
90 Correct 6 ms 724 KB n=2000
91 Correct 15 ms 724 KB n=2000
92 Runtime error 1 ms 596 KB Execution killed with signal 11
93 Halted 0 ms 0 KB -