oj.uz

Submission #854234

# Submission time Handle Problem Language Result Execution time Memory
854234 2023-09-26T12:08:05 Z Faee Birthday gift (IZhO18_treearray) C++14
100 / 100
 1827 ms 81472 KB 
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<ll,ll>
#define pb push_back
#define fi first
#define se second
#define lb lower_bound
 
const ll N = 2e5+5;
const ll LOG = 20;
 
ll n,m,q,u,v;
ll l,r,node,val;
ll upd,event;
bool ans;
ll depth[N],a[N];
ll anc[N][LOG];
vector<ll> adj[N];
set<pii> st,st2;
 
void dfs(ll x, ll y) {
	anc[x][0] = y;
	depth[x] = depth[y] + 1;
	for(int i=1; i<LOG; i++) {
		anc[x][i] = anc[anc[x][i-1]][i-1];
	}
	for(auto i : adj[x]) {
		if(i == y) continue;
		dfs(i,x);
	}
}
 
ll lca(ll x, ll y) {
	if(depth[x] < depth[y]) swap(x,y);
	for(int i=LOG-1; i>=0; i--) {
		if(depth[anc[x][i]] >= depth[y]) {
			x = anc[x][i];
		}
	}
	if(x == y) return x;
	for(int i=LOG-1; i>=0; i--) {
		if(anc[x][i] != anc[y][i]) {
			x = anc[x][i];
			y = anc[y][i];
		}
	}
	return anc[x][0];
}
 
int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cin >> n >> m >> q;
	for(int i=1; i<n; i++) {
		cin >> u >> v;
		adj[u].pb(v);
		adj[v].pb(u);
	}
	dfs(1,0);
	for(int i=1; i<=m; i++) {
		cin >> a[i];
		st2.insert({a[i],i});
	}
	for(int i=1; i<m; i++) st.insert({lca(a[i],a[i+1]),i});
	while(q--) {
		cin >> event;
		if(event == 1) {
			cin >> upd >> val;
			if(upd > 1) st.erase({lca(a[upd],a[upd-1]),upd-1});
			if(upd < m) st.erase({lca(a[upd],a[upd+1]),upd});
			st2.erase({a[upd],upd});
			
			a[upd] = val;
			if(upd > 1) st.insert({lca(a[upd],a[upd-1]),upd-1});
			if(upd < m) st.insert({lca(a[upd],a[upd+1]),upd});
			st2.insert({a[upd],upd});
		}
		else {
			cin >> l >> r >> node;
			pii var = {node,l};
			auto temp = st.lb(var);
			auto temp2 = st2.lb(var);
			if((*temp).fi == node && (*temp).se < r && temp != st.end()) {
				cout << (*temp).se << " " << (*temp).se + 1 << endl;
			}
			else if((*temp2).fi == node && (*temp2).se <= r && temp2 != st2.end()) {
				cout << (*temp2).se << " " << (*temp2).se << endl;
			}
			else cout << "-1 -1" << endl;
		}
	}
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8796 KB n=5
2 Correct 2 ms 8796 KB n=100
3 Correct 2 ms 8796 KB n=100
4 Correct 2 ms 8796 KB n=100
5 Correct 2 ms 8796 KB n=100
6 Correct 2 ms 8796 KB n=100
7 Correct 2 ms 8796 KB n=100
8 Correct 2 ms 8792 KB n=100
9 Correct 2 ms 8796 KB n=100
10 Correct 2 ms 8804 KB n=100
11 Correct 2 ms 8796 KB n=100
12 Correct 2 ms 8796 KB n=100
13 Correct 2 ms 8796 KB n=100
14 Correct 2 ms 8792 KB n=100
15 Correct 2 ms 8796 KB n=100
16 Correct 2 ms 8796 KB n=100
17 Correct 2 ms 8796 KB n=100
18 Correct 2 ms 8796 KB n=100
19 Correct 2 ms 8796 KB n=100
20 Correct 2 ms 8796 KB n=100
21 Correct 2 ms 8792 KB n=100
22 Correct 2 ms 8796 KB n=100
23 Correct 2 ms 8796 KB n=100
24 Correct 2 ms 8792 KB n=100
25 Correct 2 ms 8796 KB n=100
26 Correct 2 ms 8796 KB n=12
27 Correct 2 ms 8796 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8796 KB n=5
2 Correct 2 ms 8796 KB n=100
3 Correct 2 ms 8796 KB n=100
4 Correct 2 ms 8796 KB n=100
5 Correct 2 ms 8796 KB n=100
6 Correct 2 ms 8796 KB n=100
7 Correct 2 ms 8796 KB n=100
8 Correct 2 ms 8792 KB n=100
9 Correct 2 ms 8796 KB n=100
10 Correct 2 ms 8804 KB n=100
11 Correct 2 ms 8796 KB n=100
12 Correct 2 ms 8796 KB n=100
13 Correct 2 ms 8796 KB n=100
14 Correct 2 ms 8792 KB n=100
15 Correct 2 ms 8796 KB n=100
16 Correct 2 ms 8796 KB n=100
17 Correct 2 ms 8796 KB n=100
18 Correct 2 ms 8796 KB n=100
19 Correct 2 ms 8796 KB n=100
20 Correct 2 ms 8796 KB n=100
21 Correct 2 ms 8792 KB n=100
22 Correct 2 ms 8796 KB n=100
23 Correct 2 ms 8796 KB n=100
24 Correct 2 ms 8792 KB n=100
25 Correct 2 ms 8796 KB n=100
26 Correct 2 ms 8796 KB n=12
27 Correct 2 ms 8796 KB n=100
28 Correct 2 ms 8796 KB n=500
29 Correct 3 ms 8796 KB n=500
30 Correct 3 ms 8796 KB n=500
31 Correct 3 ms 8796 KB n=500
32 Correct 3 ms 8796 KB n=500
33 Correct 3 ms 8796 KB n=500
34 Correct 2 ms 8796 KB n=500
35 Correct 3 ms 8796 KB n=500
36 Correct 3 ms 9048 KB n=500
37 Correct 4 ms 9048 KB n=500
38 Correct 3 ms 8792 KB n=500
39 Correct 3 ms 8796 KB n=500
40 Correct 3 ms 8792 KB n=500
41 Correct 2 ms 8796 KB n=500
42 Correct 3 ms 8792 KB n=500
43 Correct 3 ms 8796 KB n=500
44 Correct 3 ms 8864 KB n=500
45 Correct 3 ms 8796 KB n=500
46 Correct 3 ms 8792 KB n=500
47 Correct 3 ms 8796 KB n=500
48 Correct 3 ms 9044 KB n=500
49 Correct 3 ms 8792 KB n=500
50 Correct 3 ms 8796 KB n=500
51 Correct 3 ms 9048 KB n=500
52 Correct 2 ms 8796 KB n=500
53 Correct 3 ms 8792 KB n=500
54 Correct 3 ms 8792 KB n=500
55 Correct 2 ms 8796 KB n=278
56 Correct 3 ms 8796 KB n=500
57 Correct 3 ms 8796 KB n=500
58 Correct 2 ms 8796 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8796 KB n=5
2 Correct 2 ms 8796 KB n=100
3 Correct 2 ms 8796 KB n=100
4 Correct 2 ms 8796 KB n=100
5 Correct 2 ms 8796 KB n=100
6 Correct 2 ms 8796 KB n=100
7 Correct 2 ms 8796 KB n=100
8 Correct 2 ms 8792 KB n=100
9 Correct 2 ms 8796 KB n=100
10 Correct 2 ms 8804 KB n=100
11 Correct 2 ms 8796 KB n=100
12 Correct 2 ms 8796 KB n=100
13 Correct 2 ms 8796 KB n=100
14 Correct 2 ms 8792 KB n=100
15 Correct 2 ms 8796 KB n=100
16 Correct 2 ms 8796 KB n=100
17 Correct 2 ms 8796 KB n=100
18 Correct 2 ms 8796 KB n=100
19 Correct 2 ms 8796 KB n=100
20 Correct 2 ms 8796 KB n=100
21 Correct 2 ms 8792 KB n=100
22 Correct 2 ms 8796 KB n=100
23 Correct 2 ms 8796 KB n=100
24 Correct 2 ms 8792 KB n=100
25 Correct 2 ms 8796 KB n=100
26 Correct 2 ms 8796 KB n=12
27 Correct 2 ms 8796 KB n=100
28 Correct 2 ms 8796 KB n=500
29 Correct 3 ms 8796 KB n=500
30 Correct 3 ms 8796 KB n=500
31 Correct 3 ms 8796 KB n=500
32 Correct 3 ms 8796 KB n=500
33 Correct 3 ms 8796 KB n=500
34 Correct 2 ms 8796 KB n=500
35 Correct 3 ms 8796 KB n=500
36 Correct 3 ms 9048 KB n=500
37 Correct 4 ms 9048 KB n=500
38 Correct 3 ms 8792 KB n=500
39 Correct 3 ms 8796 KB n=500
40 Correct 3 ms 8792 KB n=500
41 Correct 2 ms 8796 KB n=500
42 Correct 3 ms 8792 KB n=500
43 Correct 3 ms 8796 KB n=500
44 Correct 3 ms 8864 KB n=500
45 Correct 3 ms 8796 KB n=500
46 Correct 3 ms 8792 KB n=500
47 Correct 3 ms 8796 KB n=500
48 Correct 3 ms 9044 KB n=500
49 Correct 3 ms 8792 KB n=500
50 Correct 3 ms 8796 KB n=500
51 Correct 3 ms 9048 KB n=500
52 Correct 2 ms 8796 KB n=500
53 Correct 3 ms 8792 KB n=500
54 Correct 3 ms 8792 KB n=500
55 Correct 2 ms 8796 KB n=278
56 Correct 3 ms 8796 KB n=500
57 Correct 3 ms 8796 KB n=500
58 Correct 2 ms 8796 KB n=500
59 Correct 6 ms 9052 KB n=2000
60 Correct 6 ms 9048 KB n=2000
61 Correct 6 ms 9052 KB n=2000
62 Correct 7 ms 9052 KB n=2000
63 Correct 8 ms 9052 KB n=2000
64 Correct 8 ms 9052 KB n=2000
65 Correct 6 ms 9052 KB n=2000
66 Correct 7 ms 9052 KB n=2000
67 Correct 9 ms 9304 KB n=2000
68 Correct 9 ms 9048 KB n=2000
69 Correct 6 ms 9052 KB n=2000
70 Correct 6 ms 9052 KB n=2000
71 Correct 7 ms 9048 KB n=2000
72 Correct 6 ms 9052 KB n=2000
73 Correct 6 ms 9052 KB n=2000
74 Correct 6 ms 9048 KB n=1844
75 Correct 6 ms 9052 KB n=2000
76 Correct 6 ms 9048 KB n=2000
77 Correct 6 ms 9052 KB n=2000
78 Correct 6 ms 9052 KB n=2000
79 Correct 6 ms 9052 KB n=2000
80 Correct 6 ms 9052 KB n=2000
81 Correct 7 ms 9052 KB n=2000
82 Correct 6 ms 9052 KB n=2000
83 Correct 6 ms 9052 KB n=2000
84 Correct 6 ms 9052 KB n=2000
85 Correct 7 ms 9052 KB n=2000
86 Correct 7 ms 9304 KB n=2000
87 Correct 6 ms 9048 KB n=2000
88 Correct 6 ms 9052 KB n=2000
89 Correct 6 ms 9052 KB n=2000
90 Correct 6 ms 9052 KB n=2000
91 Correct 6 ms 9052 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8796 KB n=5
2 Correct 2 ms 8796 KB n=100
3 Correct 2 ms 8796 KB n=100
4 Correct 2 ms 8796 KB n=100
5 Correct 2 ms 8796 KB n=100
6 Correct 2 ms 8796 KB n=100
7 Correct 2 ms 8796 KB n=100
8 Correct 2 ms 8792 KB n=100
9 Correct 2 ms 8796 KB n=100
10 Correct 2 ms 8804 KB n=100
11 Correct 2 ms 8796 KB n=100
12 Correct 2 ms 8796 KB n=100
13 Correct 2 ms 8796 KB n=100
14 Correct 2 ms 8792 KB n=100
15 Correct 2 ms 8796 KB n=100
16 Correct 2 ms 8796 KB n=100
17 Correct 2 ms 8796 KB n=100
18 Correct 2 ms 8796 KB n=100
19 Correct 2 ms 8796 KB n=100
20 Correct 2 ms 8796 KB n=100
21 Correct 2 ms 8792 KB n=100
22 Correct 2 ms 8796 KB n=100
23 Correct 2 ms 8796 KB n=100
24 Correct 2 ms 8792 KB n=100
25 Correct 2 ms 8796 KB n=100
26 Correct 2 ms 8796 KB n=12
27 Correct 2 ms 8796 KB n=100
28 Correct 2 ms 8796 KB n=500
29 Correct 3 ms 8796 KB n=500
30 Correct 3 ms 8796 KB n=500
31 Correct 3 ms 8796 KB n=500
32 Correct 3 ms 8796 KB n=500
33 Correct 3 ms 8796 KB n=500
34 Correct 2 ms 8796 KB n=500
35 Correct 3 ms 8796 KB n=500
36 Correct 3 ms 9048 KB n=500
37 Correct 4 ms 9048 KB n=500
38 Correct 3 ms 8792 KB n=500
39 Correct 3 ms 8796 KB n=500
40 Correct 3 ms 8792 KB n=500
41 Correct 2 ms 8796 KB n=500
42 Correct 3 ms 8792 KB n=500
43 Correct 3 ms 8796 KB n=500
44 Correct 3 ms 8864 KB n=500
45 Correct 3 ms 8796 KB n=500
46 Correct 3 ms 8792 KB n=500
47 Correct 3 ms 8796 KB n=500
48 Correct 3 ms 9044 KB n=500
49 Correct 3 ms 8792 KB n=500
50 Correct 3 ms 8796 KB n=500
51 Correct 3 ms 9048 KB n=500
52 Correct 2 ms 8796 KB n=500
53 Correct 3 ms 8792 KB n=500
54 Correct 3 ms 8792 KB n=500
55 Correct 2 ms 8796 KB n=278
56 Correct 3 ms 8796 KB n=500
57 Correct 3 ms 8796 KB n=500
58 Correct 2 ms 8796 KB n=500
59 Correct 6 ms 9052 KB n=2000
60 Correct 6 ms 9048 KB n=2000
61 Correct 6 ms 9052 KB n=2000
62 Correct 7 ms 9052 KB n=2000
63 Correct 8 ms 9052 KB n=2000
64 Correct 8 ms 9052 KB n=2000
65 Correct 6 ms 9052 KB n=2000
66 Correct 7 ms 9052 KB n=2000
67 Correct 9 ms 9304 KB n=2000
68 Correct 9 ms 9048 KB n=2000
69 Correct 6 ms 9052 KB n=2000
70 Correct 6 ms 9052 KB n=2000
71 Correct 7 ms 9048 KB n=2000
72 Correct 6 ms 9052 KB n=2000
73 Correct 6 ms 9052 KB n=2000
74 Correct 6 ms 9048 KB n=1844
75 Correct 6 ms 9052 KB n=2000
76 Correct 6 ms 9048 KB n=2000
77 Correct 6 ms 9052 KB n=2000
78 Correct 6 ms 9052 KB n=2000
79 Correct 6 ms 9052 KB n=2000
80 Correct 6 ms 9052 KB n=2000
81 Correct 7 ms 9052 KB n=2000
82 Correct 6 ms 9052 KB n=2000
83 Correct 6 ms 9052 KB n=2000
84 Correct 6 ms 9052 KB n=2000
85 Correct 7 ms 9052 KB n=2000
86 Correct 7 ms 9304 KB n=2000
87 Correct 6 ms 9048 KB n=2000
88 Correct 6 ms 9052 KB n=2000
89 Correct 6 ms 9052 KB n=2000
90 Correct 6 ms 9052 KB n=2000
91 Correct 6 ms 9052 KB n=2000
92 Correct 928 ms 73896 KB n=200000
93 Correct 1827 ms 77688 KB n=200000
94 Correct 1735 ms 80320 KB n=200000
95 Correct 928 ms 73752 KB n=200000
96 Correct 982 ms 73284 KB n=200000
97 Correct 1721 ms 76760 KB n=200000
98 Correct 957 ms 73284 KB n=200000
99 Correct 1178 ms 73232 KB n=200000
100 Correct 961 ms 73672 KB n=200000
101 Correct 1676 ms 81440 KB n=200000
102 Correct 642 ms 74716 KB n=200000
103 Correct 612 ms 74680 KB n=200000
104 Correct 608 ms 74580 KB n=200000
105 Correct 605 ms 74324 KB n=200000
106 Correct 614 ms 74256 KB n=200000
107 Correct 613 ms 74324 KB n=200000
108 Correct 1004 ms 73612 KB n=200000
109 Correct 962 ms 73596 KB n=200000
110 Correct 1029 ms 73388 KB n=200000
111 Correct 884 ms 73520 KB n=200000
112 Correct 1690 ms 80308 KB n=200000
113 Correct 1740 ms 76488 KB n=200000
114 Correct 850 ms 73340 KB n=200000
115 Correct 1524 ms 74448 KB n=200000
116 Correct 891 ms 73152 KB n=200000
117 Correct 1720 ms 80964 KB n=200000
118 Correct 1662 ms 75368 KB n=200000
119 Correct 872 ms 73200 KB n=200000
120 Correct 1507 ms 80948 KB n=200000
121 Correct 1483 ms 80868 KB n=200000
122 Correct 1495 ms 81472 KB n=200000
123 Correct 591 ms 74068 KB n=200000
124 Correct 258 ms 26540 KB n=25264