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Submission #572148

# Submission time Handle Problem Language Result Execution time Memory
572148 2022-06-03T19:01:55 Z vovamr Birthday gift (IZhO18_treearray) C++17
100 / 100
 952 ms 81488 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define fi first
#define se second
#define ll long long
#define ld long double
#define sz(x) ((int)(x).size())
#define all(x) 	(x).begin(), (x).end()
#define pb push_back
#define mpp make_pair
#define ve vector
using namespace std;
using namespace __gnu_pbds;
template<class T> using oset = tree<T,null_type,less<T>,rb_tree_tag,tree_order_statistics_node_update>;
const ll inf = 1e18; const int iinf = 1e9;
typedef pair<ll, ll> pll;
typedef pair<int, int> pii;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
template <typename T> inline bool chmin(T& a, T b) { return (a > b ? a = b, 1 : 0); }
template <typename T> inline bool chmax(T& a, T b) { return (a < b ? a = b, 1 : 0); }

const int N = 2e5 + 100;
ve<int> gr[N];
const int lg = 19;
int in[N], out[N], up[N][lg];
int tim = 0;

inline void dfs(int v, int p) {
	up[v][0] = p;
	in[v] = ++tim;
	for (auto &to : gr[v]) {
		if (to == p) continue;
		dfs(to, v);
	} out[v] = ++tim;
}
inline bool anc(int a, int b) { return in[a] <= in[b] && out[b] <= out[a]; }
inline int lca(int a, int b) {
	if (anc(a, b)) return a;
	if (anc(b, a)) return b;
	for (int i = lg - 1; ~i; --i) {
		if (!anc(up[a][i], b)) {
			a = up[a][i];
		}
	} return up[a][0];
}

set<int> s1[N], s2[N];

inline void solve() {
	int n, m, q;
	cin >> n >> m >> q;
	for (int i = 1; i < n; ++i) {
		int v, u;
		cin >> v >> u, --v, --u;
		gr[v].pb(u), gr[u].pb(v);
	} dfs(0, 0);
	for (int i = 1; i < lg; ++i) {
		for (int v = 0; v < n; ++v) {
			up[v][i] = up[up[v][i - 1]][i - 1];
		}
	}

	ve<int> a(m);
	for (auto &i : a) cin >> i, --i;
	for (int i = 0; i < m; ++i) s1[a[i]].insert(i);
	for (int i = 1; i < m; ++i) s2[lca(a[i], a[i - 1])].insert(i);

	while (q--) {
		int e;
		cin >> e;
		if (e == 1) {
			int pos, x;
			cin >> pos >> x, --pos, --x;

			s1[a[pos]].erase(pos);
			if (pos) s2[lca(a[pos], a[pos - 1])].erase(pos);
			if (pos + 1 < m) s2[lca(a[pos], a[pos + 1])].erase(pos + 1);

			a[pos] = x;

			s1[a[pos]].insert(pos);
			if (pos) s2[lca(a[pos], a[pos - 1])].insert(pos);
			if (pos + 1 < m) s2[lca(a[pos], a[pos + 1])].insert(pos + 1);
		}
		else {
			int l, r, v;
			cin >> l >> r >> v, --l, --r, --v;

			auto it = s1[v].lower_bound(l);
			if (it != s1[v].end() && *it <= r) cout << *it + 1 << " " << *it + 1 << '\n';
			else {
				it = s2[v].lower_bound(l + 1);
				if (it != s2[v].end() && *it <= r) cout << *it << " " << *it + 1 << '\n';
				else cout << "-1 -1" << '\n';
			}
		}
	}
}

signed main() {
	ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
	int q = 1; // cin >> q;
	while (q--) solve();
	cerr << fixed << setprecision(3) << "Time execution: " << (double)clock() / CLOCKS_PER_SEC << endl;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23764 KB n=5
2 Correct 14 ms 23840 KB n=100
3 Correct 12 ms 23824 KB n=100
4 Correct 12 ms 23768 KB n=100
5 Correct 11 ms 23752 KB n=100
6 Correct 11 ms 23764 KB n=100
7 Correct 11 ms 23764 KB n=100
8 Correct 13 ms 23764 KB n=100
9 Correct 12 ms 23764 KB n=100
10 Correct 13 ms 23836 KB n=100
11 Correct 12 ms 23764 KB n=100
12 Correct 11 ms 23844 KB n=100
13 Correct 12 ms 23856 KB n=100
14 Correct 12 ms 23764 KB n=100
15 Correct 13 ms 23764 KB n=100
16 Correct 12 ms 23824 KB n=100
17 Correct 12 ms 23764 KB n=100
18 Correct 12 ms 23764 KB n=100
19 Correct 13 ms 23892 KB n=100
20 Correct 12 ms 23808 KB n=100
21 Correct 12 ms 23764 KB n=100
22 Correct 12 ms 23764 KB n=100
23 Correct 13 ms 23764 KB n=100
24 Correct 11 ms 23764 KB n=100
25 Correct 12 ms 23828 KB n=100
26 Correct 12 ms 23764 KB n=12
27 Correct 13 ms 23784 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23764 KB n=5
2 Correct 14 ms 23840 KB n=100
3 Correct 12 ms 23824 KB n=100
4 Correct 12 ms 23768 KB n=100
5 Correct 11 ms 23752 KB n=100
6 Correct 11 ms 23764 KB n=100
7 Correct 11 ms 23764 KB n=100
8 Correct 13 ms 23764 KB n=100
9 Correct 12 ms 23764 KB n=100
10 Correct 13 ms 23836 KB n=100
11 Correct 12 ms 23764 KB n=100
12 Correct 11 ms 23844 KB n=100
13 Correct 12 ms 23856 KB n=100
14 Correct 12 ms 23764 KB n=100
15 Correct 13 ms 23764 KB n=100
16 Correct 12 ms 23824 KB n=100
17 Correct 12 ms 23764 KB n=100
18 Correct 12 ms 23764 KB n=100
19 Correct 13 ms 23892 KB n=100
20 Correct 12 ms 23808 KB n=100
21 Correct 12 ms 23764 KB n=100
22 Correct 12 ms 23764 KB n=100
23 Correct 13 ms 23764 KB n=100
24 Correct 11 ms 23764 KB n=100
25 Correct 12 ms 23828 KB n=100
26 Correct 12 ms 23764 KB n=12
27 Correct 13 ms 23784 KB n=100
28 Correct 14 ms 24020 KB n=500
29 Correct 13 ms 23912 KB n=500
30 Correct 12 ms 23892 KB n=500
31 Correct 12 ms 23848 KB n=500
32 Correct 13 ms 23892 KB n=500
33 Correct 13 ms 23892 KB n=500
34 Correct 13 ms 23892 KB n=500
35 Correct 16 ms 23840 KB n=500
36 Correct 14 ms 23832 KB n=500
37 Correct 13 ms 23876 KB n=500
38 Correct 12 ms 23892 KB n=500
39 Correct 13 ms 23892 KB n=500
40 Correct 12 ms 23832 KB n=500
41 Correct 13 ms 23960 KB n=500
42 Correct 14 ms 23892 KB n=500
43 Correct 14 ms 23904 KB n=500
44 Correct 15 ms 23928 KB n=500
45 Correct 14 ms 23944 KB n=500
46 Correct 14 ms 23892 KB n=500
47 Correct 12 ms 23892 KB n=500
48 Correct 13 ms 23892 KB n=500
49 Correct 12 ms 23852 KB n=500
50 Correct 13 ms 23908 KB n=500
51 Correct 12 ms 23892 KB n=500
52 Correct 12 ms 23880 KB n=500
53 Correct 13 ms 23892 KB n=500
54 Correct 15 ms 23836 KB n=500
55 Correct 12 ms 23892 KB n=278
56 Correct 12 ms 23892 KB n=500
57 Correct 12 ms 23892 KB n=500
58 Correct 12 ms 23844 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23764 KB n=5
2 Correct 14 ms 23840 KB n=100
3 Correct 12 ms 23824 KB n=100
4 Correct 12 ms 23768 KB n=100
5 Correct 11 ms 23752 KB n=100
6 Correct 11 ms 23764 KB n=100
7 Correct 11 ms 23764 KB n=100
8 Correct 13 ms 23764 KB n=100
9 Correct 12 ms 23764 KB n=100
10 Correct 13 ms 23836 KB n=100
11 Correct 12 ms 23764 KB n=100
12 Correct 11 ms 23844 KB n=100
13 Correct 12 ms 23856 KB n=100
14 Correct 12 ms 23764 KB n=100
15 Correct 13 ms 23764 KB n=100
16 Correct 12 ms 23824 KB n=100
17 Correct 12 ms 23764 KB n=100
18 Correct 12 ms 23764 KB n=100
19 Correct 13 ms 23892 KB n=100
20 Correct 12 ms 23808 KB n=100
21 Correct 12 ms 23764 KB n=100
22 Correct 12 ms 23764 KB n=100
23 Correct 13 ms 23764 KB n=100
24 Correct 11 ms 23764 KB n=100
25 Correct 12 ms 23828 KB n=100
26 Correct 12 ms 23764 KB n=12
27 Correct 13 ms 23784 KB n=100
28 Correct 14 ms 24020 KB n=500
29 Correct 13 ms 23912 KB n=500
30 Correct 12 ms 23892 KB n=500
31 Correct 12 ms 23848 KB n=500
32 Correct 13 ms 23892 KB n=500
33 Correct 13 ms 23892 KB n=500
34 Correct 13 ms 23892 KB n=500
35 Correct 16 ms 23840 KB n=500
36 Correct 14 ms 23832 KB n=500
37 Correct 13 ms 23876 KB n=500
38 Correct 12 ms 23892 KB n=500
39 Correct 13 ms 23892 KB n=500
40 Correct 12 ms 23832 KB n=500
41 Correct 13 ms 23960 KB n=500
42 Correct 14 ms 23892 KB n=500
43 Correct 14 ms 23904 KB n=500
44 Correct 15 ms 23928 KB n=500
45 Correct 14 ms 23944 KB n=500
46 Correct 14 ms 23892 KB n=500
47 Correct 12 ms 23892 KB n=500
48 Correct 13 ms 23892 KB n=500
49 Correct 12 ms 23852 KB n=500
50 Correct 13 ms 23908 KB n=500
51 Correct 12 ms 23892 KB n=500
52 Correct 12 ms 23880 KB n=500
53 Correct 13 ms 23892 KB n=500
54 Correct 15 ms 23836 KB n=500
55 Correct 12 ms 23892 KB n=278
56 Correct 12 ms 23892 KB n=500
57 Correct 12 ms 23892 KB n=500
58 Correct 12 ms 23844 KB n=500
59 Correct 18 ms 24404 KB n=2000
60 Correct 13 ms 24276 KB n=2000
61 Correct 17 ms 24296 KB n=2000
62 Correct 15 ms 24256 KB n=2000
63 Correct 15 ms 24260 KB n=2000
64 Correct 14 ms 24276 KB n=2000
65 Correct 15 ms 24236 KB n=2000
66 Correct 14 ms 24276 KB n=2000
67 Correct 15 ms 24268 KB n=2000
68 Correct 15 ms 24204 KB n=2000
69 Correct 16 ms 24276 KB n=2000
70 Correct 16 ms 24244 KB n=2000
71 Correct 17 ms 24276 KB n=2000
72 Correct 14 ms 24216 KB n=2000
73 Correct 13 ms 24276 KB n=2000
74 Correct 14 ms 24164 KB n=1844
75 Correct 13 ms 24148 KB n=2000
76 Correct 14 ms 24196 KB n=2000
77 Correct 15 ms 24156 KB n=2000
78 Correct 15 ms 24276 KB n=2000
79 Correct 15 ms 24216 KB n=2000
80 Correct 16 ms 24276 KB n=2000
81 Correct 16 ms 24292 KB n=2000
82 Correct 16 ms 24276 KB n=2000
83 Correct 13 ms 24268 KB n=2000
84 Correct 15 ms 24276 KB n=2000
85 Correct 15 ms 24232 KB n=2000
86 Correct 14 ms 24276 KB n=2000
87 Correct 15 ms 24276 KB n=2000
88 Correct 14 ms 24284 KB n=2000
89 Correct 14 ms 24276 KB n=2000
90 Correct 14 ms 24324 KB n=2000
91 Correct 14 ms 24264 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23764 KB n=5
2 Correct 14 ms 23840 KB n=100
3 Correct 12 ms 23824 KB n=100
4 Correct 12 ms 23768 KB n=100
5 Correct 11 ms 23752 KB n=100
6 Correct 11 ms 23764 KB n=100
7 Correct 11 ms 23764 KB n=100
8 Correct 13 ms 23764 KB n=100
9 Correct 12 ms 23764 KB n=100
10 Correct 13 ms 23836 KB n=100
11 Correct 12 ms 23764 KB n=100
12 Correct 11 ms 23844 KB n=100
13 Correct 12 ms 23856 KB n=100
14 Correct 12 ms 23764 KB n=100
15 Correct 13 ms 23764 KB n=100
16 Correct 12 ms 23824 KB n=100
17 Correct 12 ms 23764 KB n=100
18 Correct 12 ms 23764 KB n=100
19 Correct 13 ms 23892 KB n=100
20 Correct 12 ms 23808 KB n=100
21 Correct 12 ms 23764 KB n=100
22 Correct 12 ms 23764 KB n=100
23 Correct 13 ms 23764 KB n=100
24 Correct 11 ms 23764 KB n=100
25 Correct 12 ms 23828 KB n=100
26 Correct 12 ms 23764 KB n=12
27 Correct 13 ms 23784 KB n=100
28 Correct 14 ms 24020 KB n=500
29 Correct 13 ms 23912 KB n=500
30 Correct 12 ms 23892 KB n=500
31 Correct 12 ms 23848 KB n=500
32 Correct 13 ms 23892 KB n=500
33 Correct 13 ms 23892 KB n=500
34 Correct 13 ms 23892 KB n=500
35 Correct 16 ms 23840 KB n=500
36 Correct 14 ms 23832 KB n=500
37 Correct 13 ms 23876 KB n=500
38 Correct 12 ms 23892 KB n=500
39 Correct 13 ms 23892 KB n=500
40 Correct 12 ms 23832 KB n=500
41 Correct 13 ms 23960 KB n=500
42 Correct 14 ms 23892 KB n=500
43 Correct 14 ms 23904 KB n=500
44 Correct 15 ms 23928 KB n=500
45 Correct 14 ms 23944 KB n=500
46 Correct 14 ms 23892 KB n=500
47 Correct 12 ms 23892 KB n=500
48 Correct 13 ms 23892 KB n=500
49 Correct 12 ms 23852 KB n=500
50 Correct 13 ms 23908 KB n=500
51 Correct 12 ms 23892 KB n=500
52 Correct 12 ms 23880 KB n=500
53 Correct 13 ms 23892 KB n=500
54 Correct 15 ms 23836 KB n=500
55 Correct 12 ms 23892 KB n=278
56 Correct 12 ms 23892 KB n=500
57 Correct 12 ms 23892 KB n=500
58 Correct 12 ms 23844 KB n=500
59 Correct 18 ms 24404 KB n=2000
60 Correct 13 ms 24276 KB n=2000
61 Correct 17 ms 24296 KB n=2000
62 Correct 15 ms 24256 KB n=2000
63 Correct 15 ms 24260 KB n=2000
64 Correct 14 ms 24276 KB n=2000
65 Correct 15 ms 24236 KB n=2000
66 Correct 14 ms 24276 KB n=2000
67 Correct 15 ms 24268 KB n=2000
68 Correct 15 ms 24204 KB n=2000
69 Correct 16 ms 24276 KB n=2000
70 Correct 16 ms 24244 KB n=2000
71 Correct 17 ms 24276 KB n=2000
72 Correct 14 ms 24216 KB n=2000
73 Correct 13 ms 24276 KB n=2000
74 Correct 14 ms 24164 KB n=1844
75 Correct 13 ms 24148 KB n=2000
76 Correct 14 ms 24196 KB n=2000
77 Correct 15 ms 24156 KB n=2000
78 Correct 15 ms 24276 KB n=2000
79 Correct 15 ms 24216 KB n=2000
80 Correct 16 ms 24276 KB n=2000
81 Correct 16 ms 24292 KB n=2000
82 Correct 16 ms 24276 KB n=2000
83 Correct 13 ms 24268 KB n=2000
84 Correct 15 ms 24276 KB n=2000
85 Correct 15 ms 24232 KB n=2000
86 Correct 14 ms 24276 KB n=2000
87 Correct 15 ms 24276 KB n=2000
88 Correct 14 ms 24284 KB n=2000
89 Correct 14 ms 24276 KB n=2000
90 Correct 14 ms 24324 KB n=2000
91 Correct 14 ms 24264 KB n=2000
92 Correct 658 ms 74632 KB n=200000
93 Correct 697 ms 78032 KB n=200000
94 Correct 548 ms 80332 KB n=200000
95 Correct 638 ms 74232 KB n=200000
96 Correct 615 ms 74336 KB n=200000
97 Correct 778 ms 77440 KB n=200000
98 Correct 648 ms 74400 KB n=200000
99 Correct 756 ms 74696 KB n=200000
100 Correct 647 ms 74368 KB n=200000
101 Correct 527 ms 81488 KB n=200000
102 Correct 377 ms 75512 KB n=200000
103 Correct 389 ms 75632 KB n=200000
104 Correct 383 ms 75504 KB n=200000
105 Correct 429 ms 75940 KB n=200000
106 Correct 382 ms 76108 KB n=200000
107 Correct 392 ms 75912 KB n=200000
108 Correct 696 ms 74388 KB n=200000
109 Correct 688 ms 74400 KB n=200000
110 Correct 729 ms 74540 KB n=200000
111 Correct 629 ms 73756 KB n=200000
112 Correct 573 ms 80540 KB n=200000
113 Correct 779 ms 77368 KB n=200000
114 Correct 662 ms 73804 KB n=200000
115 Correct 952 ms 75924 KB n=200000
116 Correct 646 ms 74680 KB n=200000
117 Correct 522 ms 80792 KB n=200000
118 Correct 831 ms 76500 KB n=200000
119 Correct 640 ms 74476 KB n=200000
120 Correct 457 ms 80140 KB n=200000
121 Correct 455 ms 80244 KB n=200000
122 Correct 468 ms 80672 KB n=200000
123 Correct 435 ms 75928 KB n=200000
124 Correct 181 ms 38352 KB n=25264