답안 #93207 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
93207	2019-01-07T09:07:26 Z	antimirage	Birthday gift (IZhO18_treearray)	C++14	100 / 100	2134 ms	65436 KB

treearray

#include <bits/stdc++.h>
 
#define fr first
#define sc second
#define mk make_pair
#define pb emplace_back
#define all(s) s.begin(), s.end()
 
using namespace std;

const int N = 2e5 + 5;

int n, m, q, x, y, up[20][N], h[N], a[N], type, l, r;

vector < vector <int> > g; 

void dfs (int v, int p = 0)
{
	h[v] = h[p] + 1;
	
	up[0][v] = p;
	for (int i = 1; i < 20; i++)
		up[i][v] = up[i - 1][ up[i - 1][v] ];
		
	for (auto to : g[v])
	{
		if (to == p) continue;
		dfs(to, v);
	}
}
int lca (int a, int b)
{
	if(h[a] > h[b]) swap(a, b);
	
	int cnt = h[b] - h[a];
	
	for (int i = 19; i >= 0; i--)
	{
		if (cnt & (1 << i) )
			b = up[i][b];
	}
	if (a == b) return a;
	
	assert( h[a] == h[b] );
	
	for (int i = 19; i >= 0; i--)
	{
		if (up[i][a] != up[i][b])
			a = up[i][a], b = up[i][b];
	}
	return up[0][a];
}
set < pair <int, int> > st, st2;

main() 
{
	cin >> n >> m >> q;
	g.resize(n + 1);
	
	for (int i = 1; i < n; i++)
	{
		scanf("%d%d", &x, &y);
		g[x].pb(y);
		g[y].pb(x);
	}
	dfs(1);
	
	for (int i = 1; i <= m; i++)
	{
		scanf("%d", &a[i]);
		if (i > 1)
			st.insert( mk( lca( a[i - 1], a[i] ), i - 1 ) );
			
		st2.insert( mk(a[i], i) );
	}
	while (q--)
	{
		scanf("%d%d%d", &type, &l, &r);
		
		if (type == 1){
			st2.erase( mk(a[l], l) );
			if (l > 1)
				st.erase( mk( lca( a[l - 1], a[l] ), l - 1 ) );
			if (l < m)
				st.erase( mk( lca( a[l], a[l + 1] ), l ) );
			a[l] = r;
			if (l > 1)
				st.insert( mk( lca( a[l - 1], a[l] ), l - 1 ) );
			if (l < m)
				st.insert( mk( lca( a[l], a[l + 1] ), l ) );
			st2.insert( mk(a[l], l) );
		}
		else{
			scanf("%d", &x);
			auto it = st2.lower_bound( mk(x, l) );
			if ( it != st2.end() && it->fr == x && it->sc <= r )
				printf("%d %d\n", it->sc, it->sc);
			else
			{
				auto it = st.lower_bound( mk( x, l ) );
				if ( it != st.end() && it->fr == x && it->sc + 1 <= r )
					printf("%d %d\n", it->sc, it->sc + 1);
				else
					printf("-1 -1\n");
			}
		}
	}
}
/**
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
**/

Compilation message

treearray.cpp:55:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main() 
      ^
treearray.cpp: In function 'int main()':
treearray.cpp:62:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &x, &y);
   ~~~~~^~~~~~~~~~~~~~~~
treearray.cpp:70:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &a[i]);
   ~~~~~^~~~~~~~~~~~~
treearray.cpp:78:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d%d", &type, &l, &r);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
treearray.cpp:94:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%d", &x);
    ~~~~~^~~~~~~~~~

Subtask #1
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	n=5
2	Correct	2 ms	504 KB	n=100
3	Correct	2 ms	504 KB	n=100
4	Correct	2 ms	504 KB	n=100
5	Correct	2 ms	508 KB	n=100
6	Correct	2 ms	504 KB	n=100
7	Correct	2 ms	504 KB	n=100
8	Correct	2 ms	504 KB	n=100
9	Correct	2 ms	508 KB	n=100
10	Correct	2 ms	504 KB	n=100
11	Correct	2 ms	504 KB	n=100
12	Correct	2 ms	504 KB	n=100
13	Correct	2 ms	504 KB	n=100
14	Correct	2 ms	508 KB	n=100
15	Correct	2 ms	504 KB	n=100
16	Correct	2 ms	504 KB	n=100
17	Correct	2 ms	504 KB	n=100
18	Correct	2 ms	504 KB	n=100
19	Correct	2 ms	504 KB	n=100
20	Correct	2 ms	504 KB	n=100
21	Correct	2 ms	504 KB	n=100
22	Correct	2 ms	504 KB	n=100
23	Correct	2 ms	504 KB	n=100
24	Correct	2 ms	504 KB	n=100
25	Correct	2 ms	504 KB	n=100
26	Correct	2 ms	376 KB	n=12
27	Correct	2 ms	504 KB	n=100

Subtask #2
18.0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	n=5
2	Correct	2 ms	504 KB	n=100
3	Correct	2 ms	504 KB	n=100
4	Correct	2 ms	504 KB	n=100
5	Correct	2 ms	508 KB	n=100
6	Correct	2 ms	504 KB	n=100
7	Correct	2 ms	504 KB	n=100
8	Correct	2 ms	504 KB	n=100
9	Correct	2 ms	508 KB	n=100
10	Correct	2 ms	504 KB	n=100
11	Correct	2 ms	504 KB	n=100
12	Correct	2 ms	504 KB	n=100
13	Correct	2 ms	504 KB	n=100
14	Correct	2 ms	508 KB	n=100
15	Correct	2 ms	504 KB	n=100
16	Correct	2 ms	504 KB	n=100
17	Correct	2 ms	504 KB	n=100
18	Correct	2 ms	504 KB	n=100
19	Correct	2 ms	504 KB	n=100
20	Correct	2 ms	504 KB	n=100
21	Correct	2 ms	504 KB	n=100
22	Correct	2 ms	504 KB	n=100
23	Correct	2 ms	504 KB	n=100
24	Correct	2 ms	504 KB	n=100
25	Correct	2 ms	504 KB	n=100
26	Correct	2 ms	376 KB	n=12
27	Correct	2 ms	504 KB	n=100
28	Correct	3 ms	632 KB	n=500
29	Correct	3 ms	632 KB	n=500
30	Correct	3 ms	632 KB	n=500
31	Correct	3 ms	632 KB	n=500
32	Correct	3 ms	632 KB	n=500
33	Correct	3 ms	504 KB	n=500
34	Correct	2 ms	504 KB	n=500
35	Correct	3 ms	632 KB	n=500
36	Correct	2 ms	504 KB	n=500
37	Correct	2 ms	632 KB	n=500
38	Correct	2 ms	632 KB	n=500
39	Correct	2 ms	636 KB	n=500
40	Correct	2 ms	504 KB	n=500
41	Correct	2 ms	644 KB	n=500
42	Correct	3 ms	632 KB	n=500
43	Correct	3 ms	676 KB	n=500
44	Correct	5 ms	632 KB	n=500
45	Correct	3 ms	632 KB	n=500
46	Correct	3 ms	632 KB	n=500
47	Correct	3 ms	608 KB	n=500
48	Correct	2 ms	632 KB	n=500
49	Correct	3 ms	632 KB	n=500
50	Correct	3 ms	632 KB	n=500
51	Correct	3 ms	504 KB	n=500
52	Correct	3 ms	632 KB	n=500
53	Correct	3 ms	632 KB	n=500
54	Correct	3 ms	548 KB	n=500
55	Correct	2 ms	504 KB	n=278
56	Correct	3 ms	632 KB	n=500
57	Correct	3 ms	604 KB	n=500
58	Correct	3 ms	504 KB	n=500

Subtask #3
26.0 / 26.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	n=5
2	Correct	2 ms	504 KB	n=100
3	Correct	2 ms	504 KB	n=100
4	Correct	2 ms	504 KB	n=100
5	Correct	2 ms	508 KB	n=100
6	Correct	2 ms	504 KB	n=100
7	Correct	2 ms	504 KB	n=100
8	Correct	2 ms	504 KB	n=100
9	Correct	2 ms	508 KB	n=100
10	Correct	2 ms	504 KB	n=100
11	Correct	2 ms	504 KB	n=100
12	Correct	2 ms	504 KB	n=100
13	Correct	2 ms	504 KB	n=100
14	Correct	2 ms	508 KB	n=100
15	Correct	2 ms	504 KB	n=100
16	Correct	2 ms	504 KB	n=100
17	Correct	2 ms	504 KB	n=100
18	Correct	2 ms	504 KB	n=100
19	Correct	2 ms	504 KB	n=100
20	Correct	2 ms	504 KB	n=100
21	Correct	2 ms	504 KB	n=100
22	Correct	2 ms	504 KB	n=100
23	Correct	2 ms	504 KB	n=100
24	Correct	2 ms	504 KB	n=100
25	Correct	2 ms	504 KB	n=100
26	Correct	2 ms	376 KB	n=12
27	Correct	2 ms	504 KB	n=100
28	Correct	3 ms	632 KB	n=500
29	Correct	3 ms	632 KB	n=500
30	Correct	3 ms	632 KB	n=500
31	Correct	3 ms	632 KB	n=500
32	Correct	3 ms	632 KB	n=500
33	Correct	3 ms	504 KB	n=500
34	Correct	2 ms	504 KB	n=500
35	Correct	3 ms	632 KB	n=500
36	Correct	2 ms	504 KB	n=500
37	Correct	2 ms	632 KB	n=500
38	Correct	2 ms	632 KB	n=500
39	Correct	2 ms	636 KB	n=500
40	Correct	2 ms	504 KB	n=500
41	Correct	2 ms	644 KB	n=500
42	Correct	3 ms	632 KB	n=500
43	Correct	3 ms	676 KB	n=500
44	Correct	5 ms	632 KB	n=500
45	Correct	3 ms	632 KB	n=500
46	Correct	3 ms	632 KB	n=500
47	Correct	3 ms	608 KB	n=500
48	Correct	2 ms	632 KB	n=500
49	Correct	3 ms	632 KB	n=500
50	Correct	3 ms	632 KB	n=500
51	Correct	3 ms	504 KB	n=500
52	Correct	3 ms	632 KB	n=500
53	Correct	3 ms	632 KB	n=500
54	Correct	3 ms	548 KB	n=500
55	Correct	2 ms	504 KB	n=278
56	Correct	3 ms	632 KB	n=500
57	Correct	3 ms	604 KB	n=500
58	Correct	3 ms	504 KB	n=500
59	Correct	6 ms	1016 KB	n=2000
60	Correct	6 ms	1016 KB	n=2000
61	Correct	6 ms	1016 KB	n=2000
62	Correct	7 ms	1016 KB	n=2000
63	Correct	6 ms	1016 KB	n=2000
64	Correct	7 ms	1016 KB	n=2000
65	Correct	6 ms	1016 KB	n=2000
66	Correct	6 ms	1016 KB	n=2000
67	Correct	7 ms	1016 KB	n=2000
68	Correct	6 ms	1016 KB	n=2000
69	Correct	5 ms	1016 KB	n=2000
70	Correct	5 ms	1016 KB	n=2000
71	Correct	5 ms	1016 KB	n=2000
72	Correct	5 ms	1016 KB	n=2000
73	Correct	5 ms	1016 KB	n=2000
74	Correct	6 ms	1016 KB	n=1844
75	Correct	5 ms	1016 KB	n=2000
76	Correct	7 ms	1012 KB	n=2000
77	Correct	7 ms	1016 KB	n=2000
78	Correct	6 ms	1016 KB	n=2000
79	Correct	6 ms	1016 KB	n=2000
80	Correct	6 ms	1016 KB	n=2000
81	Correct	7 ms	1016 KB	n=2000
82	Correct	6 ms	888 KB	n=2000
83	Correct	6 ms	1016 KB	n=2000
84	Correct	6 ms	1016 KB	n=2000
85	Correct	7 ms	1020 KB	n=2000
86	Correct	7 ms	956 KB	n=2000
87	Correct	7 ms	1016 KB	n=2000
88	Correct	6 ms	1016 KB	n=2000
89	Correct	6 ms	1016 KB	n=2000
90	Correct	6 ms	988 KB	n=2000
91	Correct	5 ms	1016 KB	n=2000

Subtask #4
44.0 / 44.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	n=5
2	Correct	2 ms	504 KB	n=100
3	Correct	2 ms	504 KB	n=100
4	Correct	2 ms	504 KB	n=100
5	Correct	2 ms	508 KB	n=100
6	Correct	2 ms	504 KB	n=100
7	Correct	2 ms	504 KB	n=100
8	Correct	2 ms	504 KB	n=100
9	Correct	2 ms	508 KB	n=100
10	Correct	2 ms	504 KB	n=100
11	Correct	2 ms	504 KB	n=100
12	Correct	2 ms	504 KB	n=100
13	Correct	2 ms	504 KB	n=100
14	Correct	2 ms	508 KB	n=100
15	Correct	2 ms	504 KB	n=100
16	Correct	2 ms	504 KB	n=100
17	Correct	2 ms	504 KB	n=100
18	Correct	2 ms	504 KB	n=100
19	Correct	2 ms	504 KB	n=100
20	Correct	2 ms	504 KB	n=100
21	Correct	2 ms	504 KB	n=100
22	Correct	2 ms	504 KB	n=100
23	Correct	2 ms	504 KB	n=100
24	Correct	2 ms	504 KB	n=100
25	Correct	2 ms	504 KB	n=100
26	Correct	2 ms	376 KB	n=12
27	Correct	2 ms	504 KB	n=100
28	Correct	3 ms	632 KB	n=500
29	Correct	3 ms	632 KB	n=500
30	Correct	3 ms	632 KB	n=500
31	Correct	3 ms	632 KB	n=500
32	Correct	3 ms	632 KB	n=500
33	Correct	3 ms	504 KB	n=500
34	Correct	2 ms	504 KB	n=500
35	Correct	3 ms	632 KB	n=500
36	Correct	2 ms	504 KB	n=500
37	Correct	2 ms	632 KB	n=500
38	Correct	2 ms	632 KB	n=500
39	Correct	2 ms	636 KB	n=500
40	Correct	2 ms	504 KB	n=500
41	Correct	2 ms	644 KB	n=500
42	Correct	3 ms	632 KB	n=500
43	Correct	3 ms	676 KB	n=500
44	Correct	5 ms	632 KB	n=500
45	Correct	3 ms	632 KB	n=500
46	Correct	3 ms	632 KB	n=500
47	Correct	3 ms	608 KB	n=500
48	Correct	2 ms	632 KB	n=500
49	Correct	3 ms	632 KB	n=500
50	Correct	3 ms	632 KB	n=500
51	Correct	3 ms	504 KB	n=500
52	Correct	3 ms	632 KB	n=500
53	Correct	3 ms	632 KB	n=500
54	Correct	3 ms	548 KB	n=500
55	Correct	2 ms	504 KB	n=278
56	Correct	3 ms	632 KB	n=500
57	Correct	3 ms	604 KB	n=500
58	Correct	3 ms	504 KB	n=500
59	Correct	6 ms	1016 KB	n=2000
60	Correct	6 ms	1016 KB	n=2000
61	Correct	6 ms	1016 KB	n=2000
62	Correct	7 ms	1016 KB	n=2000
63	Correct	6 ms	1016 KB	n=2000
64	Correct	7 ms	1016 KB	n=2000
65	Correct	6 ms	1016 KB	n=2000
66	Correct	6 ms	1016 KB	n=2000
67	Correct	7 ms	1016 KB	n=2000
68	Correct	6 ms	1016 KB	n=2000
69	Correct	5 ms	1016 KB	n=2000
70	Correct	5 ms	1016 KB	n=2000
71	Correct	5 ms	1016 KB	n=2000
72	Correct	5 ms	1016 KB	n=2000
73	Correct	5 ms	1016 KB	n=2000
74	Correct	6 ms	1016 KB	n=1844
75	Correct	5 ms	1016 KB	n=2000
76	Correct	7 ms	1012 KB	n=2000
77	Correct	7 ms	1016 KB	n=2000
78	Correct	6 ms	1016 KB	n=2000
79	Correct	6 ms	1016 KB	n=2000
80	Correct	6 ms	1016 KB	n=2000
81	Correct	7 ms	1016 KB	n=2000
82	Correct	6 ms	888 KB	n=2000
83	Correct	6 ms	1016 KB	n=2000
84	Correct	6 ms	1016 KB	n=2000
85	Correct	7 ms	1020 KB	n=2000
86	Correct	7 ms	956 KB	n=2000
87	Correct	7 ms	1016 KB	n=2000
88	Correct	6 ms	1016 KB	n=2000
89	Correct	6 ms	1016 KB	n=2000
90	Correct	6 ms	988 KB	n=2000
91	Correct	5 ms	1016 KB	n=2000
92	Correct	1314 ms	55768 KB	n=200000
93	Correct	1955 ms	60940 KB	n=200000
94	Correct	1916 ms	64040 KB	n=200000
95	Correct	1489 ms	55788 KB	n=200000
96	Correct	1223 ms	55736 KB	n=200000
97	Correct	2134 ms	59836 KB	n=200000
98	Correct	1504 ms	55672 KB	n=200000
99	Correct	1711 ms	55856 KB	n=200000
100	Correct	1598 ms	55704 KB	n=200000
101	Correct	2033 ms	65436 KB	n=200000
102	Correct	860 ms	56820 KB	n=200000
103	Correct	795 ms	56796 KB	n=200000
104	Correct	662 ms	56908 KB	n=200000
105	Correct	748 ms	57208 KB	n=200000
106	Correct	756 ms	57300 KB	n=200000
107	Correct	810 ms	57076 KB	n=200000
108	Correct	1372 ms	55608 KB	n=200000
109	Correct	1455 ms	55728 KB	n=200000
110	Correct	1365 ms	55896 KB	n=200000
111	Correct	1196 ms	55224 KB	n=200000
112	Correct	1868 ms	64296 KB	n=200000
113	Correct	1820 ms	59772 KB	n=200000
114	Correct	1296 ms	55172 KB	n=200000
115	Correct	1898 ms	57668 KB	n=200000
116	Correct	1363 ms	55968 KB	n=200000
117	Correct	1724 ms	64724 KB	n=200000
118	Correct	1967 ms	58732 KB	n=200000
119	Correct	1442 ms	55836 KB	n=200000
120	Correct	1714 ms	64352 KB	n=200000
121	Correct	1555 ms	64392 KB	n=200000
122	Correct	1884 ms	64604 KB	n=200000
123	Correct	831 ms	56952 KB	n=200000
124	Correct	353 ms	16000 KB	n=25264

답안 #93207

Compilation message

Subtask #1 12.0 / 12.0

Subtask #2 18.0 / 18.0

Subtask #3 26.0 / 26.0

Subtask #4 44.0 / 44.0

Subtask #1
12.0 / 12.0

Subtask #2
18.0 / 18.0

Subtask #3
26.0 / 26.0

Subtask #4
44.0 / 44.0