oj.uz

Submission #382720

# Submission time Handle Problem Language Result Execution time Memory
382720 2021-03-28T06:07:20 Z maximath_1 Birthday gift (IZhO18_treearray) C++11
100 / 100
 1145 ms 83436 KB 
#include <stdio.h>
#include <string>
#include <math.h>
#include <algorithm>
#include <vector>
#include <string.h>
#include <numeric>
#include <queue>
#include <assert.h>
#include <map>
#include <set>
#include <limits.h>
using namespace std;

#define ll long long
#define ld long double
const int MX = 200005;
const int LG = (int)log2(MX) + 2;
const ll mod = 1e9 + 7;
const ll inv2 = (mod + 1) / 2;

#define gc getchar//_unlocked //can't for window server
void cin(int &x){
	char c = gc(); bool neg = false;
	for(; c < '0'||'9' < c; c = gc())
		if(c == '-') neg=true;
	x = c - '0'; c = gc();
	for(; '0' <= c && c <= '9'; c = gc())
		x = (x << 1) + (x << 3) + (c - '0');
	if(neg) x = -x;
}

int n, m, q, a[MX];
vector<int> adj[MX];
set<int> ans_1[MX], ans_2[MX];
int anc[MX][LG], depth[MX];

void dfs(int nw, int bf){
	anc[nw][0] = bf;
	depth[nw] = depth[bf] + 1;
	for(int nx : adj[nw]) if(nx != bf)
		dfs(nx, nw);
}

void build_lca(){
	for(int j = 1; j < LG; j ++)
		for(int i = 1; i <= n; i ++)
			anc[i][j] = anc[anc[i][j - 1]][j - 1];
}

int lca(int u, int v){
	if(depth[u] < depth[v]) swap(u, v);
	int diff = depth[u] - depth[v];
	for(int i = LG - 1; i >= 0; i --)
		if(diff & (1 << i)) u = anc[u][i];
	if(u == v) return u;
	for(int i = LG - 1; i >= 0; i --)
		if(anc[u][i] != anc[v][i])
			u = anc[u][i], v = anc[v][i];
	return anc[u][0];
}

int main(){
	cin(n); cin(m); cin(q);

	for(int u, v, i = 1; i < n; i ++){
		cin(u); cin(v);
		adj[u].push_back(v);
		adj[v].push_back(u);
	}

	dfs(1, 1);
	build_lca();

	for(int i = 1; i <= m; i ++){
		cin(a[i]);
		ans_1[a[i]].insert(i);
	}

	for(int i = 1; i < m; i ++){
		int lc = lca(a[i], a[i + 1]);
		ans_2[lc].insert(i);
	}

	for(int tp, l, r, ps, v; q --;){
		cin(tp);
		if(tp == 1){
			cin(ps); cin(v);
			if(ps > 1){
				int get = lca(a[ps - 1], a[ps]);
				ans_2[get].erase(ans_2[get].find(ps - 1));
				get = lca(a[ps - 1], v);
				ans_2[get].insert(ps - 1);
			}
			if(ps < m){
				int get = lca(a[ps], a[ps + 1]);
				ans_2[get].erase(ans_2[get].find(ps));
				get = lca(v, a[ps + 1]);
				ans_2[get].insert(ps);
			}
			ans_1[a[ps]].erase(ans_1[a[ps]].find(ps));
			a[ps] = v;
			ans_1[a[ps]].insert(ps);
		}else{
			cin(l); cin(r); cin(v);
			auto it = ans_2[v].lower_bound(l);
			if(it != ans_2[v].end() && l <= *it && *it + 1 <= r)
				printf("%d %d\n", *it, *it + 1);
			else{
				it = ans_1[v].lower_bound(l);
				if(it != ans_1[v].end() && l <= *it && *it <= r)
					printf("%d %d\n", *it, *it);
				else
					printf("-1 -1\n");
			}
		}
	}
	
	return 0;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 23788 KB n=5
2 Correct 16 ms 23788 KB n=100
3 Correct 16 ms 23788 KB n=100
4 Correct 16 ms 23788 KB n=100
5 Correct 16 ms 23788 KB n=100
6 Correct 17 ms 23788 KB n=100
7 Correct 15 ms 23788 KB n=100
8 Correct 16 ms 23788 KB n=100
9 Correct 15 ms 23788 KB n=100
10 Correct 15 ms 23788 KB n=100
11 Correct 16 ms 23788 KB n=100
12 Correct 17 ms 23916 KB n=100
13 Correct 15 ms 23788 KB n=100
14 Correct 16 ms 23788 KB n=100
15 Correct 16 ms 23788 KB n=100
16 Correct 15 ms 23788 KB n=100
17 Correct 15 ms 23788 KB n=100
18 Correct 15 ms 23788 KB n=100
19 Correct 16 ms 23788 KB n=100
20 Correct 16 ms 23788 KB n=100
21 Correct 16 ms 23788 KB n=100
22 Correct 16 ms 23788 KB n=100
23 Correct 15 ms 23788 KB n=100
24 Correct 15 ms 23788 KB n=100
25 Correct 16 ms 23788 KB n=100
26 Correct 16 ms 23788 KB n=12
27 Correct 18 ms 23788 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 23788 KB n=5
2 Correct 16 ms 23788 KB n=100
3 Correct 16 ms 23788 KB n=100
4 Correct 16 ms 23788 KB n=100
5 Correct 16 ms 23788 KB n=100
6 Correct 17 ms 23788 KB n=100
7 Correct 15 ms 23788 KB n=100
8 Correct 16 ms 23788 KB n=100
9 Correct 15 ms 23788 KB n=100
10 Correct 15 ms 23788 KB n=100
11 Correct 16 ms 23788 KB n=100
12 Correct 17 ms 23916 KB n=100
13 Correct 15 ms 23788 KB n=100
14 Correct 16 ms 23788 KB n=100
15 Correct 16 ms 23788 KB n=100
16 Correct 15 ms 23788 KB n=100
17 Correct 15 ms 23788 KB n=100
18 Correct 15 ms 23788 KB n=100
19 Correct 16 ms 23788 KB n=100
20 Correct 16 ms 23788 KB n=100
21 Correct 16 ms 23788 KB n=100
22 Correct 16 ms 23788 KB n=100
23 Correct 15 ms 23788 KB n=100
24 Correct 15 ms 23788 KB n=100
25 Correct 16 ms 23788 KB n=100
26 Correct 16 ms 23788 KB n=12
27 Correct 18 ms 23788 KB n=100
28 Correct 17 ms 23916 KB n=500
29 Correct 16 ms 23916 KB n=500
30 Correct 16 ms 23916 KB n=500
31 Correct 16 ms 24044 KB n=500
32 Correct 16 ms 23916 KB n=500
33 Correct 16 ms 23920 KB n=500
34 Correct 16 ms 23916 KB n=500
35 Correct 16 ms 23916 KB n=500
36 Correct 16 ms 23916 KB n=500
37 Correct 16 ms 23916 KB n=500
38 Correct 16 ms 23916 KB n=500
39 Correct 16 ms 23916 KB n=500
40 Correct 16 ms 23916 KB n=500
41 Correct 18 ms 23916 KB n=500
42 Correct 16 ms 23916 KB n=500
43 Correct 16 ms 23936 KB n=500
44 Correct 16 ms 23916 KB n=500
45 Correct 16 ms 23916 KB n=500
46 Correct 16 ms 23916 KB n=500
47 Correct 16 ms 23916 KB n=500
48 Correct 16 ms 23916 KB n=500
49 Correct 16 ms 23916 KB n=500
50 Correct 16 ms 23916 KB n=500
51 Correct 16 ms 23916 KB n=500
52 Correct 16 ms 23916 KB n=500
53 Correct 16 ms 23916 KB n=500
54 Correct 16 ms 23916 KB n=500
55 Correct 16 ms 23916 KB n=278
56 Correct 17 ms 23920 KB n=500
57 Correct 16 ms 23916 KB n=500
58 Correct 16 ms 23916 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 23788 KB n=5
2 Correct 16 ms 23788 KB n=100
3 Correct 16 ms 23788 KB n=100
4 Correct 16 ms 23788 KB n=100
5 Correct 16 ms 23788 KB n=100
6 Correct 17 ms 23788 KB n=100
7 Correct 15 ms 23788 KB n=100
8 Correct 16 ms 23788 KB n=100
9 Correct 15 ms 23788 KB n=100
10 Correct 15 ms 23788 KB n=100
11 Correct 16 ms 23788 KB n=100
12 Correct 17 ms 23916 KB n=100
13 Correct 15 ms 23788 KB n=100
14 Correct 16 ms 23788 KB n=100
15 Correct 16 ms 23788 KB n=100
16 Correct 15 ms 23788 KB n=100
17 Correct 15 ms 23788 KB n=100
18 Correct 15 ms 23788 KB n=100
19 Correct 16 ms 23788 KB n=100
20 Correct 16 ms 23788 KB n=100
21 Correct 16 ms 23788 KB n=100
22 Correct 16 ms 23788 KB n=100
23 Correct 15 ms 23788 KB n=100
24 Correct 15 ms 23788 KB n=100
25 Correct 16 ms 23788 KB n=100
26 Correct 16 ms 23788 KB n=12
27 Correct 18 ms 23788 KB n=100
28 Correct 17 ms 23916 KB n=500
29 Correct 16 ms 23916 KB n=500
30 Correct 16 ms 23916 KB n=500
31 Correct 16 ms 24044 KB n=500
32 Correct 16 ms 23916 KB n=500
33 Correct 16 ms 23920 KB n=500
34 Correct 16 ms 23916 KB n=500
35 Correct 16 ms 23916 KB n=500
36 Correct 16 ms 23916 KB n=500
37 Correct 16 ms 23916 KB n=500
38 Correct 16 ms 23916 KB n=500
39 Correct 16 ms 23916 KB n=500
40 Correct 16 ms 23916 KB n=500
41 Correct 18 ms 23916 KB n=500
42 Correct 16 ms 23916 KB n=500
43 Correct 16 ms 23936 KB n=500
44 Correct 16 ms 23916 KB n=500
45 Correct 16 ms 23916 KB n=500
46 Correct 16 ms 23916 KB n=500
47 Correct 16 ms 23916 KB n=500
48 Correct 16 ms 23916 KB n=500
49 Correct 16 ms 23916 KB n=500
50 Correct 16 ms 23916 KB n=500
51 Correct 16 ms 23916 KB n=500
52 Correct 16 ms 23916 KB n=500
53 Correct 16 ms 23916 KB n=500
54 Correct 16 ms 23916 KB n=500
55 Correct 16 ms 23916 KB n=278
56 Correct 17 ms 23920 KB n=500
57 Correct 16 ms 23916 KB n=500
58 Correct 16 ms 23916 KB n=500
59 Correct 18 ms 24300 KB n=2000
60 Correct 18 ms 24428 KB n=2000
61 Correct 18 ms 24300 KB n=2000
62 Correct 19 ms 24300 KB n=2000
63 Correct 19 ms 24300 KB n=2000
64 Correct 18 ms 24300 KB n=2000
65 Correct 19 ms 24300 KB n=2000
66 Correct 18 ms 24300 KB n=2000
67 Correct 19 ms 24300 KB n=2000
68 Correct 19 ms 24300 KB n=2000
69 Correct 18 ms 24300 KB n=2000
70 Correct 19 ms 24300 KB n=2000
71 Correct 17 ms 24300 KB n=2000
72 Correct 18 ms 24300 KB n=2000
73 Correct 17 ms 24300 KB n=2000
74 Correct 18 ms 24300 KB n=1844
75 Correct 19 ms 24300 KB n=2000
76 Correct 19 ms 24300 KB n=2000
77 Correct 18 ms 24300 KB n=2000
78 Correct 19 ms 24300 KB n=2000
79 Correct 18 ms 24300 KB n=2000
80 Correct 18 ms 24428 KB n=2000
81 Correct 18 ms 24300 KB n=2000
82 Correct 19 ms 24300 KB n=2000
83 Correct 18 ms 24428 KB n=2000
84 Correct 18 ms 24300 KB n=2000
85 Correct 18 ms 24300 KB n=2000
86 Correct 19 ms 24300 KB n=2000
87 Correct 19 ms 24300 KB n=2000
88 Correct 18 ms 24428 KB n=2000
89 Correct 18 ms 24428 KB n=2000
90 Correct 18 ms 24428 KB n=2000
91 Correct 17 ms 24300 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 23788 KB n=5
2 Correct 16 ms 23788 KB n=100
3 Correct 16 ms 23788 KB n=100
4 Correct 16 ms 23788 KB n=100
5 Correct 16 ms 23788 KB n=100
6 Correct 17 ms 23788 KB n=100
7 Correct 15 ms 23788 KB n=100
8 Correct 16 ms 23788 KB n=100
9 Correct 15 ms 23788 KB n=100
10 Correct 15 ms 23788 KB n=100
11 Correct 16 ms 23788 KB n=100
12 Correct 17 ms 23916 KB n=100
13 Correct 15 ms 23788 KB n=100
14 Correct 16 ms 23788 KB n=100
15 Correct 16 ms 23788 KB n=100
16 Correct 15 ms 23788 KB n=100
17 Correct 15 ms 23788 KB n=100
18 Correct 15 ms 23788 KB n=100
19 Correct 16 ms 23788 KB n=100
20 Correct 16 ms 23788 KB n=100
21 Correct 16 ms 23788 KB n=100
22 Correct 16 ms 23788 KB n=100
23 Correct 15 ms 23788 KB n=100
24 Correct 15 ms 23788 KB n=100
25 Correct 16 ms 23788 KB n=100
26 Correct 16 ms 23788 KB n=12
27 Correct 18 ms 23788 KB n=100
28 Correct 17 ms 23916 KB n=500
29 Correct 16 ms 23916 KB n=500
30 Correct 16 ms 23916 KB n=500
31 Correct 16 ms 24044 KB n=500
32 Correct 16 ms 23916 KB n=500
33 Correct 16 ms 23920 KB n=500
34 Correct 16 ms 23916 KB n=500
35 Correct 16 ms 23916 KB n=500
36 Correct 16 ms 23916 KB n=500
37 Correct 16 ms 23916 KB n=500
38 Correct 16 ms 23916 KB n=500
39 Correct 16 ms 23916 KB n=500
40 Correct 16 ms 23916 KB n=500
41 Correct 18 ms 23916 KB n=500
42 Correct 16 ms 23916 KB n=500
43 Correct 16 ms 23936 KB n=500
44 Correct 16 ms 23916 KB n=500
45 Correct 16 ms 23916 KB n=500
46 Correct 16 ms 23916 KB n=500
47 Correct 16 ms 23916 KB n=500
48 Correct 16 ms 23916 KB n=500
49 Correct 16 ms 23916 KB n=500
50 Correct 16 ms 23916 KB n=500
51 Correct 16 ms 23916 KB n=500
52 Correct 16 ms 23916 KB n=500
53 Correct 16 ms 23916 KB n=500
54 Correct 16 ms 23916 KB n=500
55 Correct 16 ms 23916 KB n=278
56 Correct 17 ms 23920 KB n=500
57 Correct 16 ms 23916 KB n=500
58 Correct 16 ms 23916 KB n=500
59 Correct 18 ms 24300 KB n=2000
60 Correct 18 ms 24428 KB n=2000
61 Correct 18 ms 24300 KB n=2000
62 Correct 19 ms 24300 KB n=2000
63 Correct 19 ms 24300 KB n=2000
64 Correct 18 ms 24300 KB n=2000
65 Correct 19 ms 24300 KB n=2000
66 Correct 18 ms 24300 KB n=2000
67 Correct 19 ms 24300 KB n=2000
68 Correct 19 ms 24300 KB n=2000
69 Correct 18 ms 24300 KB n=2000
70 Correct 19 ms 24300 KB n=2000
71 Correct 17 ms 24300 KB n=2000
72 Correct 18 ms 24300 KB n=2000
73 Correct 17 ms 24300 KB n=2000
74 Correct 18 ms 24300 KB n=1844
75 Correct 19 ms 24300 KB n=2000
76 Correct 19 ms 24300 KB n=2000
77 Correct 18 ms 24300 KB n=2000
78 Correct 19 ms 24300 KB n=2000
79 Correct 18 ms 24300 KB n=2000
80 Correct 18 ms 24428 KB n=2000
81 Correct 18 ms 24300 KB n=2000
82 Correct 19 ms 24300 KB n=2000
83 Correct 18 ms 24428 KB n=2000
84 Correct 18 ms 24300 KB n=2000
85 Correct 18 ms 24300 KB n=2000
86 Correct 19 ms 24300 KB n=2000
87 Correct 19 ms 24300 KB n=2000
88 Correct 18 ms 24428 KB n=2000
89 Correct 18 ms 24428 KB n=2000
90 Correct 18 ms 24428 KB n=2000
91 Correct 17 ms 24300 KB n=2000
92 Correct 768 ms 73836 KB n=200000
93 Correct 1105 ms 78828 KB n=200000
94 Correct 1029 ms 82028 KB n=200000
95 Correct 735 ms 73832 KB n=200000
96 Correct 710 ms 73644 KB n=200000
97 Correct 1065 ms 77792 KB n=200000
98 Correct 695 ms 73568 KB n=200000
99 Correct 896 ms 73756 KB n=200000
100 Correct 723 ms 73572 KB n=200000
101 Correct 1004 ms 83436 KB n=200000
102 Correct 402 ms 74732 KB n=200000
103 Correct 395 ms 74732 KB n=200000
104 Correct 400 ms 74732 KB n=200000
105 Correct 397 ms 75232 KB n=200000
106 Correct 432 ms 75244 KB n=200000
107 Correct 414 ms 75244 KB n=200000
108 Correct 846 ms 73908 KB n=200000
109 Correct 824 ms 73836 KB n=200000
110 Correct 838 ms 73836 KB n=200000
111 Correct 800 ms 73056 KB n=200000
112 Correct 1022 ms 82284 KB n=200000
113 Correct 1087 ms 77676 KB n=200000
114 Correct 761 ms 73312 KB n=200000
115 Correct 1145 ms 75684 KB n=200000
116 Correct 676 ms 73800 KB n=200000
117 Correct 999 ms 82656 KB n=200000
118 Correct 1074 ms 76780 KB n=200000
119 Correct 667 ms 73696 KB n=200000
120 Correct 974 ms 82316 KB n=200000
121 Correct 936 ms 82284 KB n=200000
122 Correct 956 ms 82668 KB n=200000
123 Correct 399 ms 74988 KB n=200000
124 Correct 237 ms 38764 KB n=25264