oj.uz

Submission #861233

# Submission time Handle Problem Language Result Execution time Memory
861233 2023-10-15T17:05:46 Z Trisanu_Das Birthday gift (IZhO18_treearray) C++17
100 / 100
 1122 ms 102228 KB 
#include <bits/stdc++.h>
#define pb push_back
#define ll long long
#define mp make_pair
#define ff first
#define ss second
#define pii pair < int, int >
 
const int maxn = (int) 1e5 + 10;
using namespace std;
int par[20][200200], lift[200200];
vector<int> adj[200200];
int n, m, q;
 
void dfs(int u, int p){
	par[0][u] = p;
	for(int i = 1; i < 19; i++) par[i][u] = par[i - 1][par[i - 1][u]];
	lift[u] = lift[p] + 1;
	for(auto v : adj[u]) if(v != p) dfs(v, u);
}
 
int a[200200];
set<int> S[200200];
set<int> T[200200];
 
int lca(int u, int v){
	if(lift[u] < lift[v]) swap(u, v);
	for(int i = 18; i > -1; i--) if(lift[u] - (1 << i) >= lift[v]) u = par[i][u];
	if(u == v) return u;
	for(int i = 18; i > -1; i--){
		if(par[i][u] != par[i][v]) {
			u = par[i][u];
			v = par[i][v];
		}
	}
	return par[0][v];
}
 
int main(){
	cin >> n >> m >> q;
	for(int i = 1, x, y; i < n; i++){
		cin >> x >> y;
		adj[x].pb(y);
		adj[y].pb(x);
	}
	for(int i = 1; i < m + 1; i++) cin >> a[i];
	dfs(1, 0);
	for(int i = 1; i < m + 1; i++) S[a[i]].insert(i);
	for(int i = 2; i < m + 1; i++) T[lca(a[i], a[i - 1])].insert(i);
	for(int i = 1; i < n + 1; i++) {
		S[i].insert(INT_MAX);
		T[i].insert(INT_MAX);
	}
	while(q--){
        int op, l, r, v; cin >> op;
		if(op == 1){
			cin >> l >> v;
			S[a[l]].erase(l);
			if(l > 1) T[lca(a[l], a[l - 1])].erase(l);
			if(l < m) T[lca(a[l], a[l + 1])].erase(l + 1);
			a[l] = v;
			S[a[l]].insert(l);
			if(l > 1) T[lca(a[l], a[l-1])].insert(l);
			if(l < m) T[lca(a[l], a[l+1])].insert(l + 1);
		}else{
			cin >> l >> r >> v;
			int d = *S[v].lower_bound(l), e = *T[v].lower_bound(l+1);
			if(d <= r) cout << d << ' ' << d << '\n';
			else if(e <= r) cout << e - 1 << ' ' << e << '\n';
			else cout << "-1 -1\n";
		}
	}
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 39516 KB n=5
2 Correct 7 ms 39516 KB n=100
3 Correct 7 ms 39516 KB n=100
4 Correct 7 ms 39516 KB n=100
5 Correct 7 ms 39516 KB n=100
6 Correct 7 ms 39768 KB n=100
7 Correct 7 ms 39516 KB n=100
8 Correct 7 ms 39564 KB n=100
9 Correct 7 ms 39560 KB n=100
10 Correct 7 ms 39516 KB n=100
11 Correct 8 ms 39512 KB n=100
12 Correct 7 ms 39516 KB n=100
13 Correct 7 ms 39516 KB n=100
14 Correct 7 ms 39516 KB n=100
15 Correct 7 ms 39516 KB n=100
16 Correct 7 ms 39516 KB n=100
17 Correct 8 ms 39768 KB n=100
18 Correct 7 ms 39516 KB n=100
19 Correct 7 ms 39512 KB n=100
20 Correct 7 ms 39512 KB n=100
21 Correct 8 ms 39512 KB n=100
22 Correct 7 ms 39516 KB n=100
23 Correct 7 ms 39516 KB n=100
24 Correct 7 ms 39516 KB n=100
25 Correct 7 ms 39516 KB n=100
26 Correct 7 ms 39380 KB n=12
27 Correct 7 ms 39512 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 39516 KB n=5
2 Correct 7 ms 39516 KB n=100
3 Correct 7 ms 39516 KB n=100
4 Correct 7 ms 39516 KB n=100
5 Correct 7 ms 39516 KB n=100
6 Correct 7 ms 39768 KB n=100
7 Correct 7 ms 39516 KB n=100
8 Correct 7 ms 39564 KB n=100
9 Correct 7 ms 39560 KB n=100
10 Correct 7 ms 39516 KB n=100
11 Correct 8 ms 39512 KB n=100
12 Correct 7 ms 39516 KB n=100
13 Correct 7 ms 39516 KB n=100
14 Correct 7 ms 39516 KB n=100
15 Correct 7 ms 39516 KB n=100
16 Correct 7 ms 39516 KB n=100
17 Correct 8 ms 39768 KB n=100
18 Correct 7 ms 39516 KB n=100
19 Correct 7 ms 39512 KB n=100
20 Correct 7 ms 39512 KB n=100
21 Correct 8 ms 39512 KB n=100
22 Correct 7 ms 39516 KB n=100
23 Correct 7 ms 39516 KB n=100
24 Correct 7 ms 39516 KB n=100
25 Correct 7 ms 39516 KB n=100
26 Correct 7 ms 39380 KB n=12
27 Correct 7 ms 39512 KB n=100
28 Correct 8 ms 39516 KB n=500
29 Correct 8 ms 39516 KB n=500
30 Correct 8 ms 39516 KB n=500
31 Correct 8 ms 39512 KB n=500
32 Correct 8 ms 39512 KB n=500
33 Correct 8 ms 39516 KB n=500
34 Correct 8 ms 39516 KB n=500
35 Correct 8 ms 39516 KB n=500
36 Correct 9 ms 39516 KB n=500
37 Correct 8 ms 39516 KB n=500
38 Correct 9 ms 39512 KB n=500
39 Correct 8 ms 39768 KB n=500
40 Correct 8 ms 39516 KB n=500
41 Correct 8 ms 39512 KB n=500
42 Correct 9 ms 39516 KB n=500
43 Correct 8 ms 39516 KB n=500
44 Correct 8 ms 39516 KB n=500
45 Correct 8 ms 39516 KB n=500
46 Correct 9 ms 39512 KB n=500
47 Correct 8 ms 39516 KB n=500
48 Correct 8 ms 39516 KB n=500
49 Correct 8 ms 39516 KB n=500
50 Correct 8 ms 39516 KB n=500
51 Correct 8 ms 39512 KB n=500
52 Correct 8 ms 39516 KB n=500
53 Correct 8 ms 39516 KB n=500
54 Correct 8 ms 39516 KB n=500
55 Correct 7 ms 39512 KB n=278
56 Correct 8 ms 39516 KB n=500
57 Correct 8 ms 39516 KB n=500
58 Correct 9 ms 39516 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 39516 KB n=5
2 Correct 7 ms 39516 KB n=100
3 Correct 7 ms 39516 KB n=100
4 Correct 7 ms 39516 KB n=100
5 Correct 7 ms 39516 KB n=100
6 Correct 7 ms 39768 KB n=100
7 Correct 7 ms 39516 KB n=100
8 Correct 7 ms 39564 KB n=100
9 Correct 7 ms 39560 KB n=100
10 Correct 7 ms 39516 KB n=100
11 Correct 8 ms 39512 KB n=100
12 Correct 7 ms 39516 KB n=100
13 Correct 7 ms 39516 KB n=100
14 Correct 7 ms 39516 KB n=100
15 Correct 7 ms 39516 KB n=100
16 Correct 7 ms 39516 KB n=100
17 Correct 8 ms 39768 KB n=100
18 Correct 7 ms 39516 KB n=100
19 Correct 7 ms 39512 KB n=100
20 Correct 7 ms 39512 KB n=100
21 Correct 8 ms 39512 KB n=100
22 Correct 7 ms 39516 KB n=100
23 Correct 7 ms 39516 KB n=100
24 Correct 7 ms 39516 KB n=100
25 Correct 7 ms 39516 KB n=100
26 Correct 7 ms 39380 KB n=12
27 Correct 7 ms 39512 KB n=100
28 Correct 8 ms 39516 KB n=500
29 Correct 8 ms 39516 KB n=500
30 Correct 8 ms 39516 KB n=500
31 Correct 8 ms 39512 KB n=500
32 Correct 8 ms 39512 KB n=500
33 Correct 8 ms 39516 KB n=500
34 Correct 8 ms 39516 KB n=500
35 Correct 8 ms 39516 KB n=500
36 Correct 9 ms 39516 KB n=500
37 Correct 8 ms 39516 KB n=500
38 Correct 9 ms 39512 KB n=500
39 Correct 8 ms 39768 KB n=500
40 Correct 8 ms 39516 KB n=500
41 Correct 8 ms 39512 KB n=500
42 Correct 9 ms 39516 KB n=500
43 Correct 8 ms 39516 KB n=500
44 Correct 8 ms 39516 KB n=500
45 Correct 8 ms 39516 KB n=500
46 Correct 9 ms 39512 KB n=500
47 Correct 8 ms 39516 KB n=500
48 Correct 8 ms 39516 KB n=500
49 Correct 8 ms 39516 KB n=500
50 Correct 8 ms 39516 KB n=500
51 Correct 8 ms 39512 KB n=500
52 Correct 8 ms 39516 KB n=500
53 Correct 8 ms 39516 KB n=500
54 Correct 8 ms 39516 KB n=500
55 Correct 7 ms 39512 KB n=278
56 Correct 8 ms 39516 KB n=500
57 Correct 8 ms 39516 KB n=500
58 Correct 9 ms 39516 KB n=500
59 Correct 13 ms 40024 KB n=2000
60 Correct 14 ms 40024 KB n=2000
61 Correct 14 ms 40028 KB n=2000
62 Correct 12 ms 40028 KB n=2000
63 Correct 12 ms 40028 KB n=2000
64 Correct 12 ms 40028 KB n=2000
65 Correct 11 ms 40028 KB n=2000
66 Correct 12 ms 40028 KB n=2000
67 Correct 14 ms 40028 KB n=2000
68 Correct 12 ms 40028 KB n=2000
69 Correct 12 ms 39896 KB n=2000
70 Correct 12 ms 40024 KB n=2000
71 Correct 12 ms 40024 KB n=2000
72 Correct 12 ms 40024 KB n=2000
73 Correct 12 ms 40028 KB n=2000
74 Correct 11 ms 40024 KB n=1844
75 Correct 12 ms 40024 KB n=2000
76 Correct 12 ms 40028 KB n=2000
77 Correct 12 ms 40028 KB n=2000
78 Correct 12 ms 40028 KB n=2000
79 Correct 11 ms 40028 KB n=2000
80 Correct 12 ms 40028 KB n=2000
81 Correct 12 ms 40028 KB n=2000
82 Correct 12 ms 40024 KB n=2000
83 Correct 12 ms 40028 KB n=2000
84 Correct 13 ms 40072 KB n=2000
85 Correct 12 ms 40028 KB n=2000
86 Correct 12 ms 40028 KB n=2000
87 Correct 12 ms 40028 KB n=2000
88 Correct 12 ms 40024 KB n=2000
89 Correct 12 ms 39912 KB n=2000
90 Correct 12 ms 40028 KB n=2000
91 Correct 12 ms 40064 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 39516 KB n=5
2 Correct 7 ms 39516 KB n=100
3 Correct 7 ms 39516 KB n=100
4 Correct 7 ms 39516 KB n=100
5 Correct 7 ms 39516 KB n=100
6 Correct 7 ms 39768 KB n=100
7 Correct 7 ms 39516 KB n=100
8 Correct 7 ms 39564 KB n=100
9 Correct 7 ms 39560 KB n=100
10 Correct 7 ms 39516 KB n=100
11 Correct 8 ms 39512 KB n=100
12 Correct 7 ms 39516 KB n=100
13 Correct 7 ms 39516 KB n=100
14 Correct 7 ms 39516 KB n=100
15 Correct 7 ms 39516 KB n=100
16 Correct 7 ms 39516 KB n=100
17 Correct 8 ms 39768 KB n=100
18 Correct 7 ms 39516 KB n=100
19 Correct 7 ms 39512 KB n=100
20 Correct 7 ms 39512 KB n=100
21 Correct 8 ms 39512 KB n=100
22 Correct 7 ms 39516 KB n=100
23 Correct 7 ms 39516 KB n=100
24 Correct 7 ms 39516 KB n=100
25 Correct 7 ms 39516 KB n=100
26 Correct 7 ms 39380 KB n=12
27 Correct 7 ms 39512 KB n=100
28 Correct 8 ms 39516 KB n=500
29 Correct 8 ms 39516 KB n=500
30 Correct 8 ms 39516 KB n=500
31 Correct 8 ms 39512 KB n=500
32 Correct 8 ms 39512 KB n=500
33 Correct 8 ms 39516 KB n=500
34 Correct 8 ms 39516 KB n=500
35 Correct 8 ms 39516 KB n=500
36 Correct 9 ms 39516 KB n=500
37 Correct 8 ms 39516 KB n=500
38 Correct 9 ms 39512 KB n=500
39 Correct 8 ms 39768 KB n=500
40 Correct 8 ms 39516 KB n=500
41 Correct 8 ms 39512 KB n=500
42 Correct 9 ms 39516 KB n=500
43 Correct 8 ms 39516 KB n=500
44 Correct 8 ms 39516 KB n=500
45 Correct 8 ms 39516 KB n=500
46 Correct 9 ms 39512 KB n=500
47 Correct 8 ms 39516 KB n=500
48 Correct 8 ms 39516 KB n=500
49 Correct 8 ms 39516 KB n=500
50 Correct 8 ms 39516 KB n=500
51 Correct 8 ms 39512 KB n=500
52 Correct 8 ms 39516 KB n=500
53 Correct 8 ms 39516 KB n=500
54 Correct 8 ms 39516 KB n=500
55 Correct 7 ms 39512 KB n=278
56 Correct 8 ms 39516 KB n=500
57 Correct 8 ms 39516 KB n=500
58 Correct 9 ms 39516 KB n=500
59 Correct 13 ms 40024 KB n=2000
60 Correct 14 ms 40024 KB n=2000
61 Correct 14 ms 40028 KB n=2000
62 Correct 12 ms 40028 KB n=2000
63 Correct 12 ms 40028 KB n=2000
64 Correct 12 ms 40028 KB n=2000
65 Correct 11 ms 40028 KB n=2000
66 Correct 12 ms 40028 KB n=2000
67 Correct 14 ms 40028 KB n=2000
68 Correct 12 ms 40028 KB n=2000
69 Correct 12 ms 39896 KB n=2000
70 Correct 12 ms 40024 KB n=2000
71 Correct 12 ms 40024 KB n=2000
72 Correct 12 ms 40024 KB n=2000
73 Correct 12 ms 40028 KB n=2000
74 Correct 11 ms 40024 KB n=1844
75 Correct 12 ms 40024 KB n=2000
76 Correct 12 ms 40028 KB n=2000
77 Correct 12 ms 40028 KB n=2000
78 Correct 12 ms 40028 KB n=2000
79 Correct 11 ms 40028 KB n=2000
80 Correct 12 ms 40028 KB n=2000
81 Correct 12 ms 40028 KB n=2000
82 Correct 12 ms 40024 KB n=2000
83 Correct 12 ms 40028 KB n=2000
84 Correct 13 ms 40072 KB n=2000
85 Correct 12 ms 40028 KB n=2000
86 Correct 12 ms 40028 KB n=2000
87 Correct 12 ms 40028 KB n=2000
88 Correct 12 ms 40024 KB n=2000
89 Correct 12 ms 39912 KB n=2000
90 Correct 12 ms 40028 KB n=2000
91 Correct 12 ms 40064 KB n=2000
92 Correct 878 ms 86460 KB n=200000
93 Correct 1046 ms 93244 KB n=200000
94 Correct 1092 ms 100700 KB n=200000
95 Correct 890 ms 92388 KB n=200000
96 Correct 869 ms 92872 KB n=200000
97 Correct 1111 ms 96668 KB n=200000
98 Correct 841 ms 92892 KB n=200000
99 Correct 1056 ms 92752 KB n=200000
100 Correct 896 ms 92760 KB n=200000
101 Correct 1082 ms 102228 KB n=200000
102 Correct 762 ms 94184 KB n=200000
103 Correct 714 ms 94032 KB n=200000
104 Correct 730 ms 93736 KB n=200000
105 Correct 788 ms 94032 KB n=200000
106 Correct 705 ms 94188 KB n=200000
107 Correct 745 ms 94140 KB n=200000
108 Correct 1000 ms 92448 KB n=200000
109 Correct 935 ms 92808 KB n=200000
110 Correct 1016 ms 92448 KB n=200000
111 Correct 878 ms 91864 KB n=200000
112 Correct 1070 ms 101128 KB n=200000
113 Correct 1072 ms 96800 KB n=200000
114 Correct 901 ms 91868 KB n=200000
115 Correct 1122 ms 94852 KB n=200000
116 Correct 852 ms 92896 KB n=200000
117 Correct 1014 ms 101484 KB n=200000
118 Correct 1089 ms 95276 KB n=200000
119 Correct 846 ms 92964 KB n=200000
120 Correct 948 ms 101008 KB n=200000
121 Correct 948 ms 101164 KB n=200000
122 Correct 958 ms 101428 KB n=200000
123 Correct 726 ms 93780 KB n=200000
124 Correct 224 ms 54356 KB n=25264