oj.uz

Submission #500854

# Submission time Handle Problem Language Result Execution time Memory
500854 2022-01-01T12:38:02 Z pragmatist Birthday gift (IZhO18_treearray) C++17
100 / 100
 1157 ms 104460 KB 
#include <bits/stdc++.h>                            
 
#define pb push_back
#define sz(v) (int)v.size()
#define all(v) v.begin(),v.end()
#define rall(v) v.rbegin(),v.rend()
#define x first
#define y second
#define int long long
#define nl "\n"
 
using namespace std;

typedef long long ll;
typedef pair<long long, long long> pll;
typedef pair <ll, ll> pii;

const int N = (int)2e5 + 7;
const int M = (int)7e6 + 7;
const ll MOD = (ll)1e9 + 7;                    
const int inf = (int)1e9 + 7;
const ll INF = (ll)3e18 + 7;

pii dir[] = {{-1, -1}, {1, 1}, {-1, 1}, {1, -1}};

int n, m, q, a[N];
int timer, tin[N], tout[N], up[N][19];
vector<int> g[N];
set<pii> s[N];
set<int> t[N]; 

void calc(int v, int pr) {
	up[v][0] = pr;
	tin[v] = ++timer;
	for(int i = 1; i <= 18; ++i) {
		up[v][i] = up[up[v][i-1]][i-1];
	}
	for(auto to : g[v]) {
		if(to != pr) {
			calc(to, v);
		}
	}	
	tout[v] = ++timer;
}

bool is_parent(int u, int v) {
	return tin[u] <= tin[v] && tout[u] >= tout[v];
}

int lca(int u, int v) {
	if(is_parent(u, v)) return u;
	if(is_parent(v, u)) return v;
	for(int i = 18; i >= 0; --i) {
		if(!is_parent(up[u][i], v)) {
			u = up[u][i];
		}
	}
	return up[u][0];
}

void solve() { 
	cin >> n >> m >> q;
	for(int i = 1; i < n; ++i) {
		int u, v;
		cin >> u >> v;
		g[u].pb(v);
		g[v].pb(u);
	}
	for(int i = 1; i <= m; ++i) {
		cin >> a[i];
		t[a[i]].insert(i);
	}
	calc(1, 1);
	for(int i = 1; i < m; ++i) {
		s[lca(a[i], a[i + 1])].insert({i, i + 1});
	}
	for(int i = 2; i <= m; ++i) {
		s[lca(a[i], a[i - 1])].insert({i - 1, i});
	}
	while(q--) {
		char tp;
		cin >> tp;
		int l, r, v;
		if(tp == '1') {
			cin >> l >> r;
			if(l > 1) s[lca(a[l], a[l - 1])].erase({l - 1, l});
			if(l < m) s[lca(a[l], a[l + 1])].erase({l, l + 1});
			t[a[l]].erase(l);
			a[l] = r;
			if(l > 1) s[lca(a[l], a[l - 1])].insert({l - 1, l});
			if(l < m) s[lca(a[l], a[l + 1])].insert({l, l + 1});
			t[a[l]].insert(l);
		} else {
			cin >> l >> r >> v;
			auto f = *t[v].lower_bound(l);
			if(f >= l && f <= r) {
				cout << f << ' ' << f << nl;
				continue;
			}	        
			auto e = *s[v].lower_bound({l, -inf});
			if(e.y > r || e.x < l) {
				cout << "-1 -1\n";
				continue;
			}                                	
			cout << e.x << ' ' << e.y << nl;
		}
	} 	
}

signed main() {                   
	ios_base::sync_with_stdio(NULL);
    cin.tie(0);
    cout.tie(0);
   	int test = 1;
	//cin >> test;
	for(int i = 1; i <= test; ++i) {
        //cout << "Case " << i << ": ";
        solve();
    }
    return 0;
}
/*
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
*/

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23756 KB n=5
2 Correct 12 ms 23756 KB n=100
3 Correct 12 ms 23756 KB n=100
4 Correct 12 ms 23852 KB n=100
5 Correct 12 ms 23756 KB n=100
6 Correct 12 ms 23756 KB n=100
7 Correct 12 ms 23756 KB n=100
8 Correct 12 ms 23756 KB n=100
9 Correct 13 ms 23756 KB n=100
10 Correct 12 ms 23756 KB n=100
11 Correct 11 ms 23744 KB n=100
12 Correct 12 ms 23756 KB n=100
13 Correct 14 ms 23752 KB n=100
14 Correct 12 ms 23804 KB n=100
15 Correct 11 ms 23756 KB n=100
16 Correct 13 ms 23756 KB n=100
17 Correct 12 ms 23756 KB n=100
18 Correct 12 ms 23756 KB n=100
19 Correct 16 ms 23844 KB n=100
20 Correct 12 ms 23756 KB n=100
21 Correct 12 ms 23820 KB n=100
22 Correct 12 ms 23756 KB n=100
23 Correct 12 ms 23756 KB n=100
24 Correct 12 ms 23756 KB n=100
25 Correct 12 ms 23852 KB n=100
26 Correct 12 ms 23756 KB n=12
27 Correct 12 ms 23848 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23756 KB n=5
2 Correct 12 ms 23756 KB n=100
3 Correct 12 ms 23756 KB n=100
4 Correct 12 ms 23852 KB n=100
5 Correct 12 ms 23756 KB n=100
6 Correct 12 ms 23756 KB n=100
7 Correct 12 ms 23756 KB n=100
8 Correct 12 ms 23756 KB n=100
9 Correct 13 ms 23756 KB n=100
10 Correct 12 ms 23756 KB n=100
11 Correct 11 ms 23744 KB n=100
12 Correct 12 ms 23756 KB n=100
13 Correct 14 ms 23752 KB n=100
14 Correct 12 ms 23804 KB n=100
15 Correct 11 ms 23756 KB n=100
16 Correct 13 ms 23756 KB n=100
17 Correct 12 ms 23756 KB n=100
18 Correct 12 ms 23756 KB n=100
19 Correct 16 ms 23844 KB n=100
20 Correct 12 ms 23756 KB n=100
21 Correct 12 ms 23820 KB n=100
22 Correct 12 ms 23756 KB n=100
23 Correct 12 ms 23756 KB n=100
24 Correct 12 ms 23756 KB n=100
25 Correct 12 ms 23852 KB n=100
26 Correct 12 ms 23756 KB n=12
27 Correct 12 ms 23848 KB n=100
28 Correct 14 ms 23872 KB n=500
29 Correct 12 ms 23904 KB n=500
30 Correct 13 ms 23884 KB n=500
31 Correct 14 ms 23904 KB n=500
32 Correct 13 ms 23888 KB n=500
33 Correct 13 ms 23884 KB n=500
34 Correct 12 ms 23916 KB n=500
35 Correct 12 ms 24008 KB n=500
36 Correct 12 ms 23884 KB n=500
37 Correct 13 ms 23992 KB n=500
38 Correct 13 ms 23940 KB n=500
39 Correct 12 ms 23884 KB n=500
40 Correct 12 ms 23884 KB n=500
41 Correct 12 ms 23884 KB n=500
42 Correct 13 ms 23988 KB n=500
43 Correct 13 ms 23980 KB n=500
44 Correct 13 ms 23972 KB n=500
45 Correct 12 ms 23900 KB n=500
46 Correct 12 ms 23992 KB n=500
47 Correct 15 ms 23884 KB n=500
48 Correct 14 ms 24104 KB n=500
49 Correct 12 ms 23884 KB n=500
50 Correct 13 ms 23884 KB n=500
51 Correct 12 ms 23884 KB n=500
52 Correct 13 ms 24008 KB n=500
53 Correct 13 ms 23884 KB n=500
54 Correct 16 ms 23884 KB n=500
55 Correct 12 ms 23884 KB n=278
56 Correct 12 ms 23884 KB n=500
57 Correct 12 ms 24008 KB n=500
58 Correct 13 ms 23884 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23756 KB n=5
2 Correct 12 ms 23756 KB n=100
3 Correct 12 ms 23756 KB n=100
4 Correct 12 ms 23852 KB n=100
5 Correct 12 ms 23756 KB n=100
6 Correct 12 ms 23756 KB n=100
7 Correct 12 ms 23756 KB n=100
8 Correct 12 ms 23756 KB n=100
9 Correct 13 ms 23756 KB n=100
10 Correct 12 ms 23756 KB n=100
11 Correct 11 ms 23744 KB n=100
12 Correct 12 ms 23756 KB n=100
13 Correct 14 ms 23752 KB n=100
14 Correct 12 ms 23804 KB n=100
15 Correct 11 ms 23756 KB n=100
16 Correct 13 ms 23756 KB n=100
17 Correct 12 ms 23756 KB n=100
18 Correct 12 ms 23756 KB n=100
19 Correct 16 ms 23844 KB n=100
20 Correct 12 ms 23756 KB n=100
21 Correct 12 ms 23820 KB n=100
22 Correct 12 ms 23756 KB n=100
23 Correct 12 ms 23756 KB n=100
24 Correct 12 ms 23756 KB n=100
25 Correct 12 ms 23852 KB n=100
26 Correct 12 ms 23756 KB n=12
27 Correct 12 ms 23848 KB n=100
28 Correct 14 ms 23872 KB n=500
29 Correct 12 ms 23904 KB n=500
30 Correct 13 ms 23884 KB n=500
31 Correct 14 ms 23904 KB n=500
32 Correct 13 ms 23888 KB n=500
33 Correct 13 ms 23884 KB n=500
34 Correct 12 ms 23916 KB n=500
35 Correct 12 ms 24008 KB n=500
36 Correct 12 ms 23884 KB n=500
37 Correct 13 ms 23992 KB n=500
38 Correct 13 ms 23940 KB n=500
39 Correct 12 ms 23884 KB n=500
40 Correct 12 ms 23884 KB n=500
41 Correct 12 ms 23884 KB n=500
42 Correct 13 ms 23988 KB n=500
43 Correct 13 ms 23980 KB n=500
44 Correct 13 ms 23972 KB n=500
45 Correct 12 ms 23900 KB n=500
46 Correct 12 ms 23992 KB n=500
47 Correct 15 ms 23884 KB n=500
48 Correct 14 ms 24104 KB n=500
49 Correct 12 ms 23884 KB n=500
50 Correct 13 ms 23884 KB n=500
51 Correct 12 ms 23884 KB n=500
52 Correct 13 ms 24008 KB n=500
53 Correct 13 ms 23884 KB n=500
54 Correct 16 ms 23884 KB n=500
55 Correct 12 ms 23884 KB n=278
56 Correct 12 ms 23884 KB n=500
57 Correct 12 ms 24008 KB n=500
58 Correct 13 ms 23884 KB n=500
59 Correct 16 ms 24396 KB n=2000
60 Correct 14 ms 24552 KB n=2000
61 Correct 14 ms 24488 KB n=2000
62 Correct 15 ms 24500 KB n=2000
63 Correct 15 ms 24396 KB n=2000
64 Correct 15 ms 24516 KB n=2000
65 Correct 15 ms 24396 KB n=2000
66 Correct 15 ms 24524 KB n=2000
67 Correct 15 ms 24396 KB n=2000
68 Correct 18 ms 24452 KB n=2000
69 Correct 15 ms 24488 KB n=2000
70 Correct 14 ms 24396 KB n=2000
71 Correct 15 ms 24488 KB n=2000
72 Correct 15 ms 24472 KB n=2000
73 Correct 14 ms 24396 KB n=2000
74 Correct 15 ms 24396 KB n=1844
75 Correct 14 ms 24396 KB n=2000
76 Correct 16 ms 24436 KB n=2000
77 Correct 16 ms 24396 KB n=2000
78 Correct 16 ms 24396 KB n=2000
79 Correct 15 ms 24448 KB n=2000
80 Correct 14 ms 24524 KB n=2000
81 Correct 17 ms 24392 KB n=2000
82 Correct 15 ms 24396 KB n=2000
83 Correct 15 ms 24440 KB n=2000
84 Correct 15 ms 24480 KB n=2000
85 Correct 15 ms 24396 KB n=2000
86 Correct 15 ms 24436 KB n=2000
87 Correct 16 ms 24396 KB n=2000
88 Correct 14 ms 24532 KB n=2000
89 Correct 14 ms 24476 KB n=2000
90 Correct 14 ms 24524 KB n=2000
91 Correct 15 ms 24396 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23756 KB n=5
2 Correct 12 ms 23756 KB n=100
3 Correct 12 ms 23756 KB n=100
4 Correct 12 ms 23852 KB n=100
5 Correct 12 ms 23756 KB n=100
6 Correct 12 ms 23756 KB n=100
7 Correct 12 ms 23756 KB n=100
8 Correct 12 ms 23756 KB n=100
9 Correct 13 ms 23756 KB n=100
10 Correct 12 ms 23756 KB n=100
11 Correct 11 ms 23744 KB n=100
12 Correct 12 ms 23756 KB n=100
13 Correct 14 ms 23752 KB n=100
14 Correct 12 ms 23804 KB n=100
15 Correct 11 ms 23756 KB n=100
16 Correct 13 ms 23756 KB n=100
17 Correct 12 ms 23756 KB n=100
18 Correct 12 ms 23756 KB n=100
19 Correct 16 ms 23844 KB n=100
20 Correct 12 ms 23756 KB n=100
21 Correct 12 ms 23820 KB n=100
22 Correct 12 ms 23756 KB n=100
23 Correct 12 ms 23756 KB n=100
24 Correct 12 ms 23756 KB n=100
25 Correct 12 ms 23852 KB n=100
26 Correct 12 ms 23756 KB n=12
27 Correct 12 ms 23848 KB n=100
28 Correct 14 ms 23872 KB n=500
29 Correct 12 ms 23904 KB n=500
30 Correct 13 ms 23884 KB n=500
31 Correct 14 ms 23904 KB n=500
32 Correct 13 ms 23888 KB n=500
33 Correct 13 ms 23884 KB n=500
34 Correct 12 ms 23916 KB n=500
35 Correct 12 ms 24008 KB n=500
36 Correct 12 ms 23884 KB n=500
37 Correct 13 ms 23992 KB n=500
38 Correct 13 ms 23940 KB n=500
39 Correct 12 ms 23884 KB n=500
40 Correct 12 ms 23884 KB n=500
41 Correct 12 ms 23884 KB n=500
42 Correct 13 ms 23988 KB n=500
43 Correct 13 ms 23980 KB n=500
44 Correct 13 ms 23972 KB n=500
45 Correct 12 ms 23900 KB n=500
46 Correct 12 ms 23992 KB n=500
47 Correct 15 ms 23884 KB n=500
48 Correct 14 ms 24104 KB n=500
49 Correct 12 ms 23884 KB n=500
50 Correct 13 ms 23884 KB n=500
51 Correct 12 ms 23884 KB n=500
52 Correct 13 ms 24008 KB n=500
53 Correct 13 ms 23884 KB n=500
54 Correct 16 ms 23884 KB n=500
55 Correct 12 ms 23884 KB n=278
56 Correct 12 ms 23884 KB n=500
57 Correct 12 ms 24008 KB n=500
58 Correct 13 ms 23884 KB n=500
59 Correct 16 ms 24396 KB n=2000
60 Correct 14 ms 24552 KB n=2000
61 Correct 14 ms 24488 KB n=2000
62 Correct 15 ms 24500 KB n=2000
63 Correct 15 ms 24396 KB n=2000
64 Correct 15 ms 24516 KB n=2000
65 Correct 15 ms 24396 KB n=2000
66 Correct 15 ms 24524 KB n=2000
67 Correct 15 ms 24396 KB n=2000
68 Correct 18 ms 24452 KB n=2000
69 Correct 15 ms 24488 KB n=2000
70 Correct 14 ms 24396 KB n=2000
71 Correct 15 ms 24488 KB n=2000
72 Correct 15 ms 24472 KB n=2000
73 Correct 14 ms 24396 KB n=2000
74 Correct 15 ms 24396 KB n=1844
75 Correct 14 ms 24396 KB n=2000
76 Correct 16 ms 24436 KB n=2000
77 Correct 16 ms 24396 KB n=2000
78 Correct 16 ms 24396 KB n=2000
79 Correct 15 ms 24448 KB n=2000
80 Correct 14 ms 24524 KB n=2000
81 Correct 17 ms 24392 KB n=2000
82 Correct 15 ms 24396 KB n=2000
83 Correct 15 ms 24440 KB n=2000
84 Correct 15 ms 24480 KB n=2000
85 Correct 15 ms 24396 KB n=2000
86 Correct 15 ms 24436 KB n=2000
87 Correct 16 ms 24396 KB n=2000
88 Correct 14 ms 24532 KB n=2000
89 Correct 14 ms 24476 KB n=2000
90 Correct 14 ms 24524 KB n=2000
91 Correct 15 ms 24396 KB n=2000
92 Correct 753 ms 89240 KB n=200000
93 Correct 884 ms 96460 KB n=200000
94 Correct 621 ms 103560 KB n=200000
95 Correct 717 ms 95472 KB n=200000
96 Correct 715 ms 95400 KB n=200000
97 Correct 1014 ms 99824 KB n=200000
98 Correct 718 ms 95508 KB n=200000
99 Correct 876 ms 95888 KB n=200000
100 Correct 713 ms 95668 KB n=200000
101 Correct 519 ms 104460 KB n=200000
102 Correct 469 ms 96828 KB n=200000
103 Correct 462 ms 96836 KB n=200000
104 Correct 461 ms 96880 KB n=200000
105 Correct 477 ms 97208 KB n=200000
106 Correct 485 ms 97320 KB n=200000
107 Correct 468 ms 97196 KB n=200000
108 Correct 820 ms 95740 KB n=200000
109 Correct 795 ms 95880 KB n=200000
110 Correct 829 ms 95744 KB n=200000
111 Correct 727 ms 94992 KB n=200000
112 Correct 578 ms 103688 KB n=200000
113 Correct 965 ms 99668 KB n=200000
114 Correct 744 ms 95080 KB n=200000
115 Correct 1157 ms 97812 KB n=200000
116 Correct 700 ms 95788 KB n=200000
117 Correct 542 ms 103732 KB n=200000
118 Correct 1036 ms 98756 KB n=200000
119 Correct 692 ms 95596 KB n=200000
120 Correct 470 ms 103408 KB n=200000
121 Correct 465 ms 103436 KB n=200000
122 Correct 471 ms 103544 KB n=200000
123 Correct 483 ms 97092 KB n=200000
124 Correct 165 ms 42624 KB n=25264