oj.uz

Submission #48552

# Submission time Handle Problem Language Result Execution time Memory
48552 2018-05-15T23:14:25 Z aleksami Birthday gift (IZhO18_treearray) C++14
100 / 100
 1326 ms 262144 KB 
#include <bits/stdc++.h>

using namespace std;
#define MAXN 200005
#define LOG 20
vector <int> g[MAXN];
int a[MAXN];
int in[MAXN];
int out[MAXN];
int rmq[MAXN][LOG];

int T=0;

void dfs(int v,int p)
{
	in[v]=++T;
	rmq[v][0]=p;
	for(auto x:g[v])
	{
		if(x==p)continue;
		dfs(x,v);
	}
	out[v]=T;
}

int insubtree(int u,int v)
{
	return (in[u]<=in[v]&&out[u]>=in[v]);
}

int lca(int u,int v)
{
	if(insubtree(u,v))return u;
	if(insubtree(v,u))return v;
	for(int j = LOG-1; j >= 0; j--)
	{
		if(!insubtree(rmq[u][j],v))u=rmq[u][j];
	}
	return rmq[u][0];
}

set <int> st[MAXN];
set <int> stz[MAXN];

int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);
	int n,m,q;
	cin >> n >> m >> q;
	for(int i = 0; i < n-1; i++)
	{
		int u,v;
		cin >> u >> v;
		g[u].push_back(v);
		g[v].push_back(u);
	}
	dfs(1,0);
	rmq[1][0]=1;
	for(int d = 1; d < LOG; d++)
	{
		for(int i = 1; i <= n; i++)rmq[i][d]=rmq[rmq[i][d-1]][d-1];
	}
	for(int i = 1; i <= m; i++)cin >> a[i];
	for(int i = 1; i <= m-1; i++)
	{
		st[lca(a[i],a[i+1])].insert(i);
	}
	for(int i = 1; i <= m; i++)
	{
		stz[a[i]].insert(i);
	}
	while(q--)
	{
		int t;
		cin >> t;
		if(t==1)
		{
			int idx,val;
			cin >> idx >> val;
			if(idx!=m)
			{
				st[lca(a[idx],a[idx+1])].erase(idx);
				st[lca(val,a[idx+1])].insert(idx);
			}
			if(idx != 1)
			{
				st[lca(a[idx-1],a[idx])].erase(idx-1);
				st[lca(a[idx-1],val)].insert(idx-1);
			}
			stz[a[idx]].erase(idx);
			stz[val].insert(idx);
			a[idx]=val;
		}
		else
		{
			int l,r,v;
			cin >> l >> r >> v;
			auto it = st[v].lower_bound(l);
			auto itt = stz[v].lower_bound(l);
			if(itt!=stz[v].end() && *itt >= l && *itt <= r)
			{
				cout << *itt << " " << *itt << "\n";
				continue;
			}
			if(it==st[v].end())
			{
				cout << "-1 -1\n";
				continue;
			}
			if(*it <= r && *it >= l && (*it+1)<=r)
			{
				cout << *it << " " << *it+1 << "\n";
			}
			else
			{
				cout << "-1 -1\n";
			}
		}
	}
	return 0;
}
/*
5 4 4
1 2
3 1
3 4
5 3
4 5 2 3
2 1 3 1
1 3 5
2 3 4 5
2 1 3 1

*/

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 23928 KB n=5
2 Correct 20 ms 24044 KB n=100
3 Correct 24 ms 24156 KB n=100
4 Correct 21 ms 24268 KB n=100
5 Correct 21 ms 24308 KB n=100
6 Correct 21 ms 24360 KB n=100
7 Correct 21 ms 24404 KB n=100
8 Correct 21 ms 24404 KB n=100
9 Correct 21 ms 24404 KB n=100
10 Correct 20 ms 24404 KB n=100
11 Correct 20 ms 24404 KB n=100
12 Correct 20 ms 24404 KB n=100
13 Correct 20 ms 24404 KB n=100
14 Correct 20 ms 24404 KB n=100
15 Correct 19 ms 24404 KB n=100
16 Correct 24 ms 24404 KB n=100
17 Correct 20 ms 24404 KB n=100
18 Correct 21 ms 24404 KB n=100
19 Correct 20 ms 24404 KB n=100
20 Correct 21 ms 24476 KB n=100
21 Correct 20 ms 24476 KB n=100
22 Correct 20 ms 24476 KB n=100
23 Correct 22 ms 24476 KB n=100
24 Correct 20 ms 24476 KB n=100
25 Correct 20 ms 24476 KB n=100
26 Correct 20 ms 24476 KB n=12
27 Correct 21 ms 24476 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 23928 KB n=5
2 Correct 20 ms 24044 KB n=100
3 Correct 24 ms 24156 KB n=100
4 Correct 21 ms 24268 KB n=100
5 Correct 21 ms 24308 KB n=100
6 Correct 21 ms 24360 KB n=100
7 Correct 21 ms 24404 KB n=100
8 Correct 21 ms 24404 KB n=100
9 Correct 21 ms 24404 KB n=100
10 Correct 20 ms 24404 KB n=100
11 Correct 20 ms 24404 KB n=100
12 Correct 20 ms 24404 KB n=100
13 Correct 20 ms 24404 KB n=100
14 Correct 20 ms 24404 KB n=100
15 Correct 19 ms 24404 KB n=100
16 Correct 24 ms 24404 KB n=100
17 Correct 20 ms 24404 KB n=100
18 Correct 21 ms 24404 KB n=100
19 Correct 20 ms 24404 KB n=100
20 Correct 21 ms 24476 KB n=100
21 Correct 20 ms 24476 KB n=100
22 Correct 20 ms 24476 KB n=100
23 Correct 22 ms 24476 KB n=100
24 Correct 20 ms 24476 KB n=100
25 Correct 20 ms 24476 KB n=100
26 Correct 20 ms 24476 KB n=12
27 Correct 21 ms 24476 KB n=100
28 Correct 22 ms 24568 KB n=500
29 Correct 21 ms 24692 KB n=500
30 Correct 21 ms 24692 KB n=500
31 Correct 21 ms 24692 KB n=500
32 Correct 21 ms 24692 KB n=500
33 Correct 21 ms 24692 KB n=500
34 Correct 22 ms 24692 KB n=500
35 Correct 21 ms 24692 KB n=500
36 Correct 20 ms 24692 KB n=500
37 Correct 21 ms 24692 KB n=500
38 Correct 21 ms 24696 KB n=500
39 Correct 22 ms 24728 KB n=500
40 Correct 20 ms 24728 KB n=500
41 Correct 21 ms 24756 KB n=500
42 Correct 22 ms 24772 KB n=500
43 Correct 21 ms 24784 KB n=500
44 Correct 21 ms 24796 KB n=500
45 Correct 22 ms 24864 KB n=500
46 Correct 21 ms 24864 KB n=500
47 Correct 21 ms 24864 KB n=500
48 Correct 21 ms 24864 KB n=500
49 Correct 20 ms 24864 KB n=500
50 Correct 21 ms 24880 KB n=500
51 Correct 21 ms 24976 KB n=500
52 Correct 21 ms 24976 KB n=500
53 Correct 21 ms 24976 KB n=500
54 Correct 21 ms 24976 KB n=500
55 Correct 20 ms 24976 KB n=278
56 Correct 23 ms 24976 KB n=500
57 Correct 22 ms 24976 KB n=500
58 Correct 21 ms 24984 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 23928 KB n=5
2 Correct 20 ms 24044 KB n=100
3 Correct 24 ms 24156 KB n=100
4 Correct 21 ms 24268 KB n=100
5 Correct 21 ms 24308 KB n=100
6 Correct 21 ms 24360 KB n=100
7 Correct 21 ms 24404 KB n=100
8 Correct 21 ms 24404 KB n=100
9 Correct 21 ms 24404 KB n=100
10 Correct 20 ms 24404 KB n=100
11 Correct 20 ms 24404 KB n=100
12 Correct 20 ms 24404 KB n=100
13 Correct 20 ms 24404 KB n=100
14 Correct 20 ms 24404 KB n=100
15 Correct 19 ms 24404 KB n=100
16 Correct 24 ms 24404 KB n=100
17 Correct 20 ms 24404 KB n=100
18 Correct 21 ms 24404 KB n=100
19 Correct 20 ms 24404 KB n=100
20 Correct 21 ms 24476 KB n=100
21 Correct 20 ms 24476 KB n=100
22 Correct 20 ms 24476 KB n=100
23 Correct 22 ms 24476 KB n=100
24 Correct 20 ms 24476 KB n=100
25 Correct 20 ms 24476 KB n=100
26 Correct 20 ms 24476 KB n=12
27 Correct 21 ms 24476 KB n=100
28 Correct 22 ms 24568 KB n=500
29 Correct 21 ms 24692 KB n=500
30 Correct 21 ms 24692 KB n=500
31 Correct 21 ms 24692 KB n=500
32 Correct 21 ms 24692 KB n=500
33 Correct 21 ms 24692 KB n=500
34 Correct 22 ms 24692 KB n=500
35 Correct 21 ms 24692 KB n=500
36 Correct 20 ms 24692 KB n=500
37 Correct 21 ms 24692 KB n=500
38 Correct 21 ms 24696 KB n=500
39 Correct 22 ms 24728 KB n=500
40 Correct 20 ms 24728 KB n=500
41 Correct 21 ms 24756 KB n=500
42 Correct 22 ms 24772 KB n=500
43 Correct 21 ms 24784 KB n=500
44 Correct 21 ms 24796 KB n=500
45 Correct 22 ms 24864 KB n=500
46 Correct 21 ms 24864 KB n=500
47 Correct 21 ms 24864 KB n=500
48 Correct 21 ms 24864 KB n=500
49 Correct 20 ms 24864 KB n=500
50 Correct 21 ms 24880 KB n=500
51 Correct 21 ms 24976 KB n=500
52 Correct 21 ms 24976 KB n=500
53 Correct 21 ms 24976 KB n=500
54 Correct 21 ms 24976 KB n=500
55 Correct 20 ms 24976 KB n=278
56 Correct 23 ms 24976 KB n=500
57 Correct 22 ms 24976 KB n=500
58 Correct 21 ms 24984 KB n=500
59 Correct 25 ms 25384 KB n=2000
60 Correct 23 ms 25580 KB n=2000
61 Correct 24 ms 25620 KB n=2000
62 Correct 25 ms 25620 KB n=2000
63 Correct 25 ms 25620 KB n=2000
64 Correct 24 ms 25660 KB n=2000
65 Correct 25 ms 25720 KB n=2000
66 Correct 25 ms 25896 KB n=2000
67 Correct 26 ms 25896 KB n=2000
68 Correct 25 ms 25896 KB n=2000
69 Correct 25 ms 25944 KB n=2000
70 Correct 25 ms 26032 KB n=2000
71 Correct 23 ms 26044 KB n=2000
72 Correct 23 ms 26096 KB n=2000
73 Correct 24 ms 26140 KB n=2000
74 Correct 25 ms 26208 KB n=1844
75 Correct 24 ms 26328 KB n=2000
76 Correct 24 ms 26328 KB n=2000
77 Correct 32 ms 26360 KB n=2000
78 Correct 25 ms 26412 KB n=2000
79 Correct 26 ms 26504 KB n=2000
80 Correct 24 ms 26724 KB n=2000
81 Correct 24 ms 26724 KB n=2000
82 Correct 26 ms 26728 KB n=2000
83 Correct 25 ms 26824 KB n=2000
84 Correct 25 ms 26824 KB n=2000
85 Correct 24 ms 26824 KB n=2000
86 Correct 25 ms 26868 KB n=2000
87 Correct 25 ms 27004 KB n=2000
88 Correct 24 ms 27096 KB n=2000
89 Correct 24 ms 27160 KB n=2000
90 Correct 24 ms 27216 KB n=2000
91 Correct 24 ms 27216 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 23928 KB n=5
2 Correct 20 ms 24044 KB n=100
3 Correct 24 ms 24156 KB n=100
4 Correct 21 ms 24268 KB n=100
5 Correct 21 ms 24308 KB n=100
6 Correct 21 ms 24360 KB n=100
7 Correct 21 ms 24404 KB n=100
8 Correct 21 ms 24404 KB n=100
9 Correct 21 ms 24404 KB n=100
10 Correct 20 ms 24404 KB n=100
11 Correct 20 ms 24404 KB n=100
12 Correct 20 ms 24404 KB n=100
13 Correct 20 ms 24404 KB n=100
14 Correct 20 ms 24404 KB n=100
15 Correct 19 ms 24404 KB n=100
16 Correct 24 ms 24404 KB n=100
17 Correct 20 ms 24404 KB n=100
18 Correct 21 ms 24404 KB n=100
19 Correct 20 ms 24404 KB n=100
20 Correct 21 ms 24476 KB n=100
21 Correct 20 ms 24476 KB n=100
22 Correct 20 ms 24476 KB n=100
23 Correct 22 ms 24476 KB n=100
24 Correct 20 ms 24476 KB n=100
25 Correct 20 ms 24476 KB n=100
26 Correct 20 ms 24476 KB n=12
27 Correct 21 ms 24476 KB n=100
28 Correct 22 ms 24568 KB n=500
29 Correct 21 ms 24692 KB n=500
30 Correct 21 ms 24692 KB n=500
31 Correct 21 ms 24692 KB n=500
32 Correct 21 ms 24692 KB n=500
33 Correct 21 ms 24692 KB n=500
34 Correct 22 ms 24692 KB n=500
35 Correct 21 ms 24692 KB n=500
36 Correct 20 ms 24692 KB n=500
37 Correct 21 ms 24692 KB n=500
38 Correct 21 ms 24696 KB n=500
39 Correct 22 ms 24728 KB n=500
40 Correct 20 ms 24728 KB n=500
41 Correct 21 ms 24756 KB n=500
42 Correct 22 ms 24772 KB n=500
43 Correct 21 ms 24784 KB n=500
44 Correct 21 ms 24796 KB n=500
45 Correct 22 ms 24864 KB n=500
46 Correct 21 ms 24864 KB n=500
47 Correct 21 ms 24864 KB n=500
48 Correct 21 ms 24864 KB n=500
49 Correct 20 ms 24864 KB n=500
50 Correct 21 ms 24880 KB n=500
51 Correct 21 ms 24976 KB n=500
52 Correct 21 ms 24976 KB n=500
53 Correct 21 ms 24976 KB n=500
54 Correct 21 ms 24976 KB n=500
55 Correct 20 ms 24976 KB n=278
56 Correct 23 ms 24976 KB n=500
57 Correct 22 ms 24976 KB n=500
58 Correct 21 ms 24984 KB n=500
59 Correct 25 ms 25384 KB n=2000
60 Correct 23 ms 25580 KB n=2000
61 Correct 24 ms 25620 KB n=2000
62 Correct 25 ms 25620 KB n=2000
63 Correct 25 ms 25620 KB n=2000
64 Correct 24 ms 25660 KB n=2000
65 Correct 25 ms 25720 KB n=2000
66 Correct 25 ms 25896 KB n=2000
67 Correct 26 ms 25896 KB n=2000
68 Correct 25 ms 25896 KB n=2000
69 Correct 25 ms 25944 KB n=2000
70 Correct 25 ms 26032 KB n=2000
71 Correct 23 ms 26044 KB n=2000
72 Correct 23 ms 26096 KB n=2000
73 Correct 24 ms 26140 KB n=2000
74 Correct 25 ms 26208 KB n=1844
75 Correct 24 ms 26328 KB n=2000
76 Correct 24 ms 26328 KB n=2000
77 Correct 32 ms 26360 KB n=2000
78 Correct 25 ms 26412 KB n=2000
79 Correct 26 ms 26504 KB n=2000
80 Correct 24 ms 26724 KB n=2000
81 Correct 24 ms 26724 KB n=2000
82 Correct 26 ms 26728 KB n=2000
83 Correct 25 ms 26824 KB n=2000
84 Correct 25 ms 26824 KB n=2000
85 Correct 24 ms 26824 KB n=2000
86 Correct 25 ms 26868 KB n=2000
87 Correct 25 ms 27004 KB n=2000
88 Correct 24 ms 27096 KB n=2000
89 Correct 24 ms 27160 KB n=2000
90 Correct 24 ms 27216 KB n=2000
91 Correct 24 ms 27216 KB n=2000
92 Correct 934 ms 78264 KB n=200000
93 Correct 1094 ms 89792 KB n=200000
94 Correct 746 ms 100596 KB n=200000
95 Correct 902 ms 100596 KB n=200000
96 Correct 893 ms 106588 KB n=200000
97 Correct 1029 ms 117192 KB n=200000
98 Correct 934 ms 120632 KB n=200000
99 Correct 1014 ms 127340 KB n=200000
100 Correct 883 ms 134412 KB n=200000
101 Correct 692 ms 150484 KB n=200000
102 Correct 526 ms 150484 KB n=200000
103 Correct 547 ms 156280 KB n=200000
104 Correct 522 ms 163028 KB n=200000
105 Correct 532 ms 170240 KB n=200000
106 Correct 544 ms 177296 KB n=200000
107 Correct 559 ms 184776 KB n=200000
108 Correct 1108 ms 190804 KB n=200000
109 Correct 1078 ms 197616 KB n=200000
110 Correct 1016 ms 204468 KB n=200000
111 Correct 1002 ms 210792 KB n=200000
112 Correct 806 ms 225896 KB n=200000
113 Correct 1094 ms 228992 KB n=200000
114 Correct 1008 ms 232240 KB n=200000
115 Correct 1326 ms 240940 KB n=200000
116 Correct 954 ms 246512 KB n=200000
117 Correct 753 ms 262128 KB n=200000
118 Correct 1236 ms 262144 KB n=200000
119 Correct 905 ms 262144 KB n=200000
120 Correct 634 ms 262144 KB n=200000
121 Correct 672 ms 262144 KB n=200000
122 Correct 620 ms 262144 KB n=200000
123 Correct 534 ms 262144 KB n=200000
124 Correct 231 ms 262144 KB n=25264