답안 #54196 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
54196	2018-07-02T18:34:55 Z	ulna	Birthday gift (IZhO18_treearray)	C++11	100 / 100	1893 ms	98516 KB

treearray

#pragma GCC optimize ("O3")

#include <bits/stdc++.h>
using namespace std;

// why am I so weak

const int maxn = 2e5;

int n, m, q;
int a[maxn];

vector<int> g[maxn];

#define MAX_LOG 18

int depth[maxn];
int par[MAX_LOG][maxn];

set<int> s[maxn];
set<int> ss[maxn];

void dfs(int v, int par = -1, int d = 0) {
	::par[0][v] = par;
	depth[v] = d;

	for (auto u : g[v]) if (u != par) {
		dfs(u, v, d + 1);
	}
}
inline int lca(int v, int u) {
	if (depth[u] > depth[v]) swap(u, v);

	for (int i = 0; i < MAX_LOG; i++) if (((depth[v] - depth[u]) >> i) & 1) {
		v = par[i][v];
	}

	if (u == v) return u;

	for (int i = MAX_LOG - 1; i >= 0; i--) if (par[i][v] != par[i][u]) {
		v = par[i][v], u = par[i][u];
	}

	return par[0][v];
}
inline void upd(int id, int mode) {
	if (id < 0 || id + 1 >= m) return;

	if (mode == -1) ss[lca(a[id], a[id + 1])].erase(id);
	else ss[lca(a[id], a[id + 1])].insert(id);
}
int main() {
	cin >> n >> m >> q;

	for (int i = 0; i + 1 < n; i++) {
		int x, y;
		scanf("%d %d", &x, &y);
		x--, y--;

		g[x].push_back(y);
		g[y].push_back(x);
	}

	dfs(0);

	for (int i = 0; i + 1 < MAX_LOG; i++) for (int j = 0; j < n; j++) {
		if (par[i][j] < 0) par[i + 1][j] = -1;
		else par[i + 1][j] = par[i][par[i][j]];
	}

	for (int i = 0; i < m; i++) {
		scanf("%d", &a[i]);
		a[i]--;
		s[a[i]].insert(i);
	}

	for (int i = 0; i + 1 < m; i++) {
		ss[lca(a[i], a[i + 1])].insert(i);	
	}

	while (q--) {
		int ope;
		scanf("%d", &ope);

		if (ope == 1) {
			int x, y;
			scanf("%d %d", &x, &y);
			x--, y--;

			s[a[x]].erase(x);

			upd(x, -1);
			upd(x - 1, -1);

			a[x] = y;
			s[a[x]].insert(x);

			upd(x, 1);
			upd(x - 1, 1);
		} else {
			int x, y, z;
			scanf("%d %d %d", &x, &y, &z);
			x--, y--, z--;
			
			auto lb = s[z].lower_bound(x);

			if (lb != s[z].end() && *lb <= y) {
				printf("%d %d\n", *lb + 1, *lb + 1);
				continue;
			}

			lb = ss[z].lower_bound(x);

			if (lb != ss[z].end() && *lb < y) {
				printf("%d %d\n", *lb + 1, *lb + 2);
				continue;
			}

			puts("-1 -1");
		}
	}

	return 0;
}

Compilation message

treearray.cpp: In function 'int main()':
treearray.cpp:57:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d", &x, &y);
   ~~~~~^~~~~~~~~~~~~~~~~
treearray.cpp:72:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &a[i]);
   ~~~~~^~~~~~~~~~~~~
treearray.cpp:83:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &ope);
   ~~~~~^~~~~~~~~~~~
treearray.cpp:87:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%d %d", &x, &y);
    ~~~~~^~~~~~~~~~~~~~~~~
treearray.cpp:102:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%d %d %d", &x, &y, &z);
    ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	24 ms	23928 KB	n=5
2	Correct	21 ms	23928 KB	n=100
3	Correct	21 ms	24012 KB	n=100
4	Correct	21 ms	24088 KB	n=100
5	Correct	22 ms	24088 KB	n=100
6	Correct	27 ms	24088 KB	n=100
7	Correct	22 ms	24088 KB	n=100
8	Correct	21 ms	24176 KB	n=100
9	Correct	24 ms	24176 KB	n=100
10	Correct	27 ms	24208 KB	n=100
11	Correct	26 ms	24208 KB	n=100
12	Correct	27 ms	24208 KB	n=100
13	Correct	22 ms	24208 KB	n=100
14	Correct	26 ms	24208 KB	n=100
15	Correct	27 ms	24208 KB	n=100
16	Correct	21 ms	24208 KB	n=100
17	Correct	21 ms	24208 KB	n=100
18	Correct	24 ms	24208 KB	n=100
19	Correct	22 ms	24208 KB	n=100
20	Correct	21 ms	24208 KB	n=100
21	Correct	21 ms	24208 KB	n=100
22	Correct	22 ms	24208 KB	n=100
23	Correct	22 ms	24208 KB	n=100
24	Correct	22 ms	24208 KB	n=100
25	Correct	22 ms	24208 KB	n=100
26	Correct	22 ms	24240 KB	n=12
27	Correct	22 ms	24240 KB	n=100

Subtask #2
18.0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Correct	24 ms	23928 KB	n=5
2	Correct	21 ms	23928 KB	n=100
3	Correct	21 ms	24012 KB	n=100
4	Correct	21 ms	24088 KB	n=100
5	Correct	22 ms	24088 KB	n=100
6	Correct	27 ms	24088 KB	n=100
7	Correct	22 ms	24088 KB	n=100
8	Correct	21 ms	24176 KB	n=100
9	Correct	24 ms	24176 KB	n=100
10	Correct	27 ms	24208 KB	n=100
11	Correct	26 ms	24208 KB	n=100
12	Correct	27 ms	24208 KB	n=100
13	Correct	22 ms	24208 KB	n=100
14	Correct	26 ms	24208 KB	n=100
15	Correct	27 ms	24208 KB	n=100
16	Correct	21 ms	24208 KB	n=100
17	Correct	21 ms	24208 KB	n=100
18	Correct	24 ms	24208 KB	n=100
19	Correct	22 ms	24208 KB	n=100
20	Correct	21 ms	24208 KB	n=100
21	Correct	21 ms	24208 KB	n=100
22	Correct	22 ms	24208 KB	n=100
23	Correct	22 ms	24208 KB	n=100
24	Correct	22 ms	24208 KB	n=100
25	Correct	22 ms	24208 KB	n=100
26	Correct	22 ms	24240 KB	n=12
27	Correct	22 ms	24240 KB	n=100
28	Correct	23 ms	24296 KB	n=500
29	Correct	23 ms	24296 KB	n=500
30	Correct	23 ms	24296 KB	n=500
31	Correct	28 ms	24296 KB	n=500
32	Correct	27 ms	24296 KB	n=500
33	Correct	27 ms	24296 KB	n=500
34	Correct	30 ms	24296 KB	n=500
35	Correct	24 ms	24296 KB	n=500
36	Correct	24 ms	24300 KB	n=500
37	Correct	23 ms	24424 KB	n=500
38	Correct	23 ms	24424 KB	n=500
39	Correct	23 ms	24424 KB	n=500
40	Correct	29 ms	24424 KB	n=500
41	Correct	24 ms	24424 KB	n=500
42	Correct	25 ms	24424 KB	n=500
43	Correct	24 ms	24424 KB	n=500
44	Correct	24 ms	24424 KB	n=500
45	Correct	25 ms	24424 KB	n=500
46	Correct	24 ms	24424 KB	n=500
47	Correct	24 ms	24424 KB	n=500
48	Correct	25 ms	24424 KB	n=500
49	Correct	26 ms	24424 KB	n=500
50	Correct	23 ms	24424 KB	n=500
51	Correct	24 ms	24424 KB	n=500
52	Correct	28 ms	24424 KB	n=500
53	Correct	23 ms	24424 KB	n=500
54	Correct	24 ms	24424 KB	n=500
55	Correct	22 ms	24424 KB	n=278
56	Correct	22 ms	24424 KB	n=500
57	Correct	23 ms	24424 KB	n=500
58	Correct	22 ms	24424 KB	n=500

Subtask #3
26.0 / 26.0

#	결과	실행 시간	메모리	Grader output
1	Correct	24 ms	23928 KB	n=5
2	Correct	21 ms	23928 KB	n=100
3	Correct	21 ms	24012 KB	n=100
4	Correct	21 ms	24088 KB	n=100
5	Correct	22 ms	24088 KB	n=100
6	Correct	27 ms	24088 KB	n=100
7	Correct	22 ms	24088 KB	n=100
8	Correct	21 ms	24176 KB	n=100
9	Correct	24 ms	24176 KB	n=100
10	Correct	27 ms	24208 KB	n=100
11	Correct	26 ms	24208 KB	n=100
12	Correct	27 ms	24208 KB	n=100
13	Correct	22 ms	24208 KB	n=100
14	Correct	26 ms	24208 KB	n=100
15	Correct	27 ms	24208 KB	n=100
16	Correct	21 ms	24208 KB	n=100
17	Correct	21 ms	24208 KB	n=100
18	Correct	24 ms	24208 KB	n=100
19	Correct	22 ms	24208 KB	n=100
20	Correct	21 ms	24208 KB	n=100
21	Correct	21 ms	24208 KB	n=100
22	Correct	22 ms	24208 KB	n=100
23	Correct	22 ms	24208 KB	n=100
24	Correct	22 ms	24208 KB	n=100
25	Correct	22 ms	24208 KB	n=100
26	Correct	22 ms	24240 KB	n=12
27	Correct	22 ms	24240 KB	n=100
28	Correct	23 ms	24296 KB	n=500
29	Correct	23 ms	24296 KB	n=500
30	Correct	23 ms	24296 KB	n=500
31	Correct	28 ms	24296 KB	n=500
32	Correct	27 ms	24296 KB	n=500
33	Correct	27 ms	24296 KB	n=500
34	Correct	30 ms	24296 KB	n=500
35	Correct	24 ms	24296 KB	n=500
36	Correct	24 ms	24300 KB	n=500
37	Correct	23 ms	24424 KB	n=500
38	Correct	23 ms	24424 KB	n=500
39	Correct	23 ms	24424 KB	n=500
40	Correct	29 ms	24424 KB	n=500
41	Correct	24 ms	24424 KB	n=500
42	Correct	25 ms	24424 KB	n=500
43	Correct	24 ms	24424 KB	n=500
44	Correct	24 ms	24424 KB	n=500
45	Correct	25 ms	24424 KB	n=500
46	Correct	24 ms	24424 KB	n=500
47	Correct	24 ms	24424 KB	n=500
48	Correct	25 ms	24424 KB	n=500
49	Correct	26 ms	24424 KB	n=500
50	Correct	23 ms	24424 KB	n=500
51	Correct	24 ms	24424 KB	n=500
52	Correct	28 ms	24424 KB	n=500
53	Correct	23 ms	24424 KB	n=500
54	Correct	24 ms	24424 KB	n=500
55	Correct	22 ms	24424 KB	n=278
56	Correct	22 ms	24424 KB	n=500
57	Correct	23 ms	24424 KB	n=500
58	Correct	22 ms	24424 KB	n=500
59	Correct	26 ms	24556 KB	n=2000
60	Correct	38 ms	24556 KB	n=2000
61	Correct	26 ms	24572 KB	n=2000
62	Correct	27 ms	24588 KB	n=2000
63	Correct	29 ms	24588 KB	n=2000
64	Correct	31 ms	24604 KB	n=2000
65	Correct	26 ms	24604 KB	n=2000
66	Correct	26 ms	24604 KB	n=2000
67	Correct	27 ms	24604 KB	n=2000
68	Correct	26 ms	24608 KB	n=2000
69	Correct	25 ms	24608 KB	n=2000
70	Correct	25 ms	24608 KB	n=2000
71	Correct	24 ms	24608 KB	n=2000
72	Correct	25 ms	24608 KB	n=2000
73	Correct	26 ms	24608 KB	n=2000
74	Correct	36 ms	24608 KB	n=1844
75	Correct	24 ms	24732 KB	n=2000
76	Correct	26 ms	24732 KB	n=2000
77	Correct	26 ms	24732 KB	n=2000
78	Correct	27 ms	24732 KB	n=2000
79	Correct	25 ms	24732 KB	n=2000
80	Correct	26 ms	24812 KB	n=2000
81	Correct	26 ms	24812 KB	n=2000
82	Correct	26 ms	24812 KB	n=2000
83	Correct	29 ms	24812 KB	n=2000
84	Correct	25 ms	24812 KB	n=2000
85	Correct	26 ms	24812 KB	n=2000
86	Correct	27 ms	24812 KB	n=2000
87	Correct	30 ms	24812 KB	n=2000
88	Correct	26 ms	24812 KB	n=2000
89	Correct	27 ms	24812 KB	n=2000
90	Correct	29 ms	24812 KB	n=2000
91	Correct	34 ms	24812 KB	n=2000

Subtask #4
44.0 / 44.0

#	결과	실행 시간	메모리	Grader output
1	Correct	24 ms	23928 KB	n=5
2	Correct	21 ms	23928 KB	n=100
3	Correct	21 ms	24012 KB	n=100
4	Correct	21 ms	24088 KB	n=100
5	Correct	22 ms	24088 KB	n=100
6	Correct	27 ms	24088 KB	n=100
7	Correct	22 ms	24088 KB	n=100
8	Correct	21 ms	24176 KB	n=100
9	Correct	24 ms	24176 KB	n=100
10	Correct	27 ms	24208 KB	n=100
11	Correct	26 ms	24208 KB	n=100
12	Correct	27 ms	24208 KB	n=100
13	Correct	22 ms	24208 KB	n=100
14	Correct	26 ms	24208 KB	n=100
15	Correct	27 ms	24208 KB	n=100
16	Correct	21 ms	24208 KB	n=100
17	Correct	21 ms	24208 KB	n=100
18	Correct	24 ms	24208 KB	n=100
19	Correct	22 ms	24208 KB	n=100
20	Correct	21 ms	24208 KB	n=100
21	Correct	21 ms	24208 KB	n=100
22	Correct	22 ms	24208 KB	n=100
23	Correct	22 ms	24208 KB	n=100
24	Correct	22 ms	24208 KB	n=100
25	Correct	22 ms	24208 KB	n=100
26	Correct	22 ms	24240 KB	n=12
27	Correct	22 ms	24240 KB	n=100
28	Correct	23 ms	24296 KB	n=500
29	Correct	23 ms	24296 KB	n=500
30	Correct	23 ms	24296 KB	n=500
31	Correct	28 ms	24296 KB	n=500
32	Correct	27 ms	24296 KB	n=500
33	Correct	27 ms	24296 KB	n=500
34	Correct	30 ms	24296 KB	n=500
35	Correct	24 ms	24296 KB	n=500
36	Correct	24 ms	24300 KB	n=500
37	Correct	23 ms	24424 KB	n=500
38	Correct	23 ms	24424 KB	n=500
39	Correct	23 ms	24424 KB	n=500
40	Correct	29 ms	24424 KB	n=500
41	Correct	24 ms	24424 KB	n=500
42	Correct	25 ms	24424 KB	n=500
43	Correct	24 ms	24424 KB	n=500
44	Correct	24 ms	24424 KB	n=500
45	Correct	25 ms	24424 KB	n=500
46	Correct	24 ms	24424 KB	n=500
47	Correct	24 ms	24424 KB	n=500
48	Correct	25 ms	24424 KB	n=500
49	Correct	26 ms	24424 KB	n=500
50	Correct	23 ms	24424 KB	n=500
51	Correct	24 ms	24424 KB	n=500
52	Correct	28 ms	24424 KB	n=500
53	Correct	23 ms	24424 KB	n=500
54	Correct	24 ms	24424 KB	n=500
55	Correct	22 ms	24424 KB	n=278
56	Correct	22 ms	24424 KB	n=500
57	Correct	23 ms	24424 KB	n=500
58	Correct	22 ms	24424 KB	n=500
59	Correct	26 ms	24556 KB	n=2000
60	Correct	38 ms	24556 KB	n=2000
61	Correct	26 ms	24572 KB	n=2000
62	Correct	27 ms	24588 KB	n=2000
63	Correct	29 ms	24588 KB	n=2000
64	Correct	31 ms	24604 KB	n=2000
65	Correct	26 ms	24604 KB	n=2000
66	Correct	26 ms	24604 KB	n=2000
67	Correct	27 ms	24604 KB	n=2000
68	Correct	26 ms	24608 KB	n=2000
69	Correct	25 ms	24608 KB	n=2000
70	Correct	25 ms	24608 KB	n=2000
71	Correct	24 ms	24608 KB	n=2000
72	Correct	25 ms	24608 KB	n=2000
73	Correct	26 ms	24608 KB	n=2000
74	Correct	36 ms	24608 KB	n=1844
75	Correct	24 ms	24732 KB	n=2000
76	Correct	26 ms	24732 KB	n=2000
77	Correct	26 ms	24732 KB	n=2000
78	Correct	27 ms	24732 KB	n=2000
79	Correct	25 ms	24732 KB	n=2000
80	Correct	26 ms	24812 KB	n=2000
81	Correct	26 ms	24812 KB	n=2000
82	Correct	26 ms	24812 KB	n=2000
83	Correct	29 ms	24812 KB	n=2000
84	Correct	25 ms	24812 KB	n=2000
85	Correct	26 ms	24812 KB	n=2000
86	Correct	27 ms	24812 KB	n=2000
87	Correct	30 ms	24812 KB	n=2000
88	Correct	26 ms	24812 KB	n=2000
89	Correct	27 ms	24812 KB	n=2000
90	Correct	29 ms	24812 KB	n=2000
91	Correct	34 ms	24812 KB	n=2000
92	Correct	1302 ms	66996 KB	n=200000
93	Correct	1620 ms	69012 KB	n=200000
94	Correct	1420 ms	71252 KB	n=200000
95	Correct	1036 ms	71252 KB	n=200000
96	Correct	1104 ms	71252 KB	n=200000
97	Correct	1655 ms	71252 KB	n=200000
98	Correct	1008 ms	71252 KB	n=200000
99	Correct	1427 ms	71252 KB	n=200000
100	Correct	1164 ms	71252 KB	n=200000
101	Correct	1599 ms	72240 KB	n=200000
102	Correct	598 ms	72240 KB	n=200000
103	Correct	655 ms	72240 KB	n=200000
104	Correct	603 ms	72240 KB	n=200000
105	Correct	655 ms	72240 KB	n=200000
106	Correct	717 ms	72240 KB	n=200000
107	Correct	612 ms	72240 KB	n=200000
108	Correct	1454 ms	72240 KB	n=200000
109	Correct	1319 ms	72240 KB	n=200000
110	Correct	1327 ms	72240 KB	n=200000
111	Correct	1192 ms	72240 KB	n=200000
112	Correct	1629 ms	72240 KB	n=200000
113	Correct	1675 ms	72240 KB	n=200000
114	Correct	1245 ms	72240 KB	n=200000
115	Correct	1893 ms	72240 KB	n=200000
116	Correct	1126 ms	72240 KB	n=200000
117	Correct	1794 ms	72240 KB	n=200000
118	Correct	1717 ms	72240 KB	n=200000
119	Correct	1240 ms	72240 KB	n=200000
120	Correct	1559 ms	81964 KB	n=200000
121	Correct	1747 ms	88856 KB	n=200000
122	Correct	1556 ms	96360 KB	n=200000
123	Correct	580 ms	98516 KB	n=200000
124	Correct	352 ms	98516 KB	n=25264

답안 #54196

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