oj.uz

Submission #865471

# Submission time Handle Problem Language Result Execution time Memory
865471 2023-10-24T08:59:12 Z vjudge1 Birthday gift (IZhO18_treearray) C++17
56 / 100
 4000 ms 36244 KB 
//Bismillahir-Rahmanir-Rahim
#include <bits/stdc++.h>
         
using namespace std;
      
#define flash ios_base::sync_with_stdio(0),cin.tie(0)
#define pb push_back
#define ll long long
#define ld long double
#define dbg(x) cerr << #x << " = " << x << "\n";
#define ff first
#define ss second
 
 /*     
#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma comment (linker, "/stack:200000000")
#pragma GCC optimize("Ofast")
#pragma GCC target ("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
*/ 
 
const long long INF = 1e9 + 7;
const long long MOD = 1e9 + 7;
const int maxn = 2e5 + 10;
const int lg = 22;

int n, m, q, a[maxn], upp[maxn][lg + 1], tin[maxn], tout[maxn], timer;
vector <int> g[maxn];

void dfs(int v, int p) {
	upp[v][0] = p;
	tin[v] = ++timer;
	for (int i = 1; i <= lg; i++) {
		upp[v][i] = upp[upp[v][i - 1]][i - 1];
	}
	for (auto to: g[v]) {
		if (to != p) {
			dfs(to, v);
		}
	} 
	tout[v] = timer;
}

bool check(int a, int b) {
	if (tin[a] <= tin[b] && tout[a] >= tout[b]) {
		return 1;
	}
	return 0;
}

void press_F_() {
	cin >> n >> m >> q;
	for (int i = 1; i < n; i++) {
		int x, y;
		cin >> x >> y;
		g[x].pb(y);
		g[y].pb(x);
	}
	for (int i = 1; i <= m; i++) {
		cin >> a[i];
	}
	dfs(1, 0);
	while(q--) {
		int tp;
		cin >> tp;
		if (tp == 1) {
			int pos, v;
			cin >> pos >> v;
			a[pos] = v;
		} else {
			int l, r, u;
			cin >> l >> r >> u;
			int x = l, nx = INF, ny = -INF, lca;
			lca = a[l];
			for (int i = l; i <= r; i++) {
				if (a[i] == u) {
					if (ny - nx + 1 < i - i + 1) {
						ny = i;
						nx = i;
					}
				}
				if (check(a[i], lca)) {
					lca = a[i];
					if (lca == u) {
						if (ny - nx + 1 < i - x + 1) {
							nx = x;
							ny = i;
						}
					}
					if (!check(u, lca)) {
						x = i;
						lca = a[i]; 
					}
					continue;
				}
				if (check(a[i], lca)) {
					if (lca == u) {
						if (ny - nx + 1 < i - x + 1) {
							nx = x;
							ny = i;
						}
					}
					if (!check(u, lca)) {
						lca = a[i];
						x = i;
					}
					continue;
				}
				int cur = a[i];
				for (int j = lg; j >= 0; j--) {
					if (!check(upp[cur][j], lca) && upp[cur][j] != 0) {
						cur = upp[cur][j];
					}
				}
				if (upp[cur][0] == u) {
					if (ny - nx + 1 < i - x + 1) {
						nx = x;
						ny = i;
					}
					lca = upp[cur][0];
				}
				if (!check(u, lca)) {
					lca = a[i];
					x = i;
				}
				else {
					lca = upp[cur][0];
				}
			}
			if (nx == INF && ny == -INF) {
				nx = -1;
				ny = -1;
			}
			cout << nx << " " << ny << '\n';
		}
	}
} 

/*
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
*/
int main() {
    flash;
    // srand(time(0));
    int T = 1;
    // cin >> T;
    for (int i = 1; i <= T; i++) {
        // cout << "Case" << " " << i << ':' << "\n";
        press_F_();
    }
    //Respa gold 2023-2024 InshAllah
    return 0;
}
/*
Maybe not today and tomorrow, but InshAllah one day I will reach expert
*/
// g++ -std=c++17 main.cpp
// ./a.out

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 3 ms 8796 KB n=100
7 Correct 2 ms 8792 KB n=100
8 Correct 2 ms 8796 KB n=100
9 Correct 2 ms 8796 KB n=100
10 Correct 2 ms 8796 KB n=100
11 Correct 2 ms 8796 KB n=100
12 Correct 2 ms 8792 KB n=100
13 Correct 2 ms 8796 KB n=100
14 Correct 2 ms 8796 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 8796 KB n=100
22 Correct 2 ms 8796 KB n=100
23 Correct 2 ms 8796 KB n=100
24 Correct 2 ms 8796 KB n=100
25 Correct 2 ms 8796 KB n=100
26 Correct 1 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 1 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 3 ms 8796 KB n=100
7 Correct 2 ms 8792 KB n=100
8 Correct 2 ms 8796 KB n=100
9 Correct 2 ms 8796 KB n=100
10 Correct 2 ms 8796 KB n=100
11 Correct 2 ms 8796 KB n=100
12 Correct 2 ms 8792 KB n=100
13 Correct 2 ms 8796 KB n=100
14 Correct 2 ms 8796 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 8796 KB n=100
22 Correct 2 ms 8796 KB n=100
23 Correct 2 ms 8796 KB n=100
24 Correct 2 ms 8796 KB n=100
25 Correct 2 ms 8796 KB n=100
26 Correct 1 ms 8796 KB n=12
27 Correct 2 ms 8796 KB n=100
28 Correct 6 ms 8796 KB n=500
29 Correct 6 ms 8796 KB n=500
30 Correct 5 ms 8888 KB n=500
31 Correct 5 ms 8796 KB n=500
32 Correct 8 ms 8796 KB n=500
33 Correct 6 ms 8792 KB n=500
34 Correct 6 ms 8796 KB n=500
35 Correct 5 ms 8792 KB n=500
36 Correct 25 ms 8796 KB n=500
37 Correct 25 ms 8792 KB n=500
38 Correct 25 ms 8792 KB n=500
39 Correct 8 ms 8796 KB n=500
40 Correct 7 ms 8796 KB n=500
41 Correct 8 ms 8796 KB n=500
42 Correct 12 ms 8796 KB n=500
43 Correct 13 ms 8792 KB n=500
44 Correct 12 ms 8796 KB n=500
45 Correct 5 ms 8796 KB n=500
46 Correct 6 ms 8796 KB n=500
47 Correct 5 ms 8796 KB n=500
48 Correct 5 ms 8796 KB n=500
49 Correct 5 ms 8796 KB n=500
50 Correct 6 ms 8796 KB n=500
51 Correct 5 ms 8796 KB n=500
52 Correct 6 ms 8792 KB n=500
53 Correct 6 ms 8796 KB n=500
54 Correct 11 ms 8796 KB n=500
55 Correct 3 ms 9048 KB n=278
56 Correct 12 ms 8900 KB n=500
57 Correct 12 ms 8792 KB n=500
58 Correct 12 ms 8792 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 3 ms 8796 KB n=100
7 Correct 2 ms 8792 KB n=100
8 Correct 2 ms 8796 KB n=100
9 Correct 2 ms 8796 KB n=100
10 Correct 2 ms 8796 KB n=100
11 Correct 2 ms 8796 KB n=100
12 Correct 2 ms 8792 KB n=100
13 Correct 2 ms 8796 KB n=100
14 Correct 2 ms 8796 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 8796 KB n=100
22 Correct 2 ms 8796 KB n=100
23 Correct 2 ms 8796 KB n=100
24 Correct 2 ms 8796 KB n=100
25 Correct 2 ms 8796 KB n=100
26 Correct 1 ms 8796 KB n=12
27 Correct 2 ms 8796 KB n=100
28 Correct 6 ms 8796 KB n=500
29 Correct 6 ms 8796 KB n=500
30 Correct 5 ms 8888 KB n=500
31 Correct 5 ms 8796 KB n=500
32 Correct 8 ms 8796 KB n=500
33 Correct 6 ms 8792 KB n=500
34 Correct 6 ms 8796 KB n=500
35 Correct 5 ms 8792 KB n=500
36 Correct 25 ms 8796 KB n=500
37 Correct 25 ms 8792 KB n=500
38 Correct 25 ms 8792 KB n=500
39 Correct 8 ms 8796 KB n=500
40 Correct 7 ms 8796 KB n=500
41 Correct 8 ms 8796 KB n=500
42 Correct 12 ms 8796 KB n=500
43 Correct 13 ms 8792 KB n=500
44 Correct 12 ms 8796 KB n=500
45 Correct 5 ms 8796 KB n=500
46 Correct 6 ms 8796 KB n=500
47 Correct 5 ms 8796 KB n=500
48 Correct 5 ms 8796 KB n=500
49 Correct 5 ms 8796 KB n=500
50 Correct 6 ms 8796 KB n=500
51 Correct 5 ms 8796 KB n=500
52 Correct 6 ms 8792 KB n=500
53 Correct 6 ms 8796 KB n=500
54 Correct 11 ms 8796 KB n=500
55 Correct 3 ms 9048 KB n=278
56 Correct 12 ms 8900 KB n=500
57 Correct 12 ms 8792 KB n=500
58 Correct 12 ms 8792 KB n=500
59 Correct 68 ms 10844 KB n=2000
60 Correct 74 ms 11244 KB n=2000
61 Correct 78 ms 10844 KB n=2000
62 Correct 81 ms 10840 KB n=2000
63 Correct 75 ms 10844 KB n=2000
64 Correct 82 ms 10844 KB n=2000
65 Correct 72 ms 10840 KB n=2000
66 Correct 82 ms 10844 KB n=2000
67 Correct 82 ms 10844 KB n=2000
68 Correct 77 ms 11048 KB n=2000
69 Correct 391 ms 11016 KB n=2000
70 Correct 393 ms 10844 KB n=2000
71 Correct 386 ms 11016 KB n=2000
72 Correct 98 ms 10840 KB n=2000
73 Correct 101 ms 11092 KB n=2000
74 Correct 57 ms 10840 KB n=1844
75 Correct 99 ms 10844 KB n=2000
76 Correct 194 ms 11004 KB n=2000
77 Correct 197 ms 11008 KB n=2000
78 Correct 203 ms 11352 KB n=2000
79 Correct 59 ms 10844 KB n=2000
80 Correct 66 ms 10844 KB n=2000
81 Correct 69 ms 11036 KB n=2000
82 Correct 58 ms 10844 KB n=2000
83 Correct 66 ms 11064 KB n=2000
84 Correct 77 ms 11012 KB n=2000
85 Correct 79 ms 11352 KB n=2000
86 Correct 82 ms 10840 KB n=2000
87 Correct 78 ms 11040 KB n=2000
88 Correct 285 ms 11100 KB n=2000
89 Correct 280 ms 11096 KB n=2000
90 Correct 237 ms 11100 KB n=2000
91 Correct 200 ms 11012 KB n=2000

Subtask #4
0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 3 ms 8796 KB n=100
7 Correct 2 ms 8792 KB n=100
8 Correct 2 ms 8796 KB n=100
9 Correct 2 ms 8796 KB n=100
10 Correct 2 ms 8796 KB n=100
11 Correct 2 ms 8796 KB n=100
12 Correct 2 ms 8792 KB n=100
13 Correct 2 ms 8796 KB n=100
14 Correct 2 ms 8796 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 8796 KB n=100
22 Correct 2 ms 8796 KB n=100
23 Correct 2 ms 8796 KB n=100
24 Correct 2 ms 8796 KB n=100
25 Correct 2 ms 8796 KB n=100
26 Correct 1 ms 8796 KB n=12
27 Correct 2 ms 8796 KB n=100
28 Correct 6 ms 8796 KB n=500
29 Correct 6 ms 8796 KB n=500
30 Correct 5 ms 8888 KB n=500
31 Correct 5 ms 8796 KB n=500
32 Correct 8 ms 8796 KB n=500
33 Correct 6 ms 8792 KB n=500
34 Correct 6 ms 8796 KB n=500
35 Correct 5 ms 8792 KB n=500
36 Correct 25 ms 8796 KB n=500
37 Correct 25 ms 8792 KB n=500
38 Correct 25 ms 8792 KB n=500
39 Correct 8 ms 8796 KB n=500
40 Correct 7 ms 8796 KB n=500
41 Correct 8 ms 8796 KB n=500
42 Correct 12 ms 8796 KB n=500
43 Correct 13 ms 8792 KB n=500
44 Correct 12 ms 8796 KB n=500
45 Correct 5 ms 8796 KB n=500
46 Correct 6 ms 8796 KB n=500
47 Correct 5 ms 8796 KB n=500
48 Correct 5 ms 8796 KB n=500
49 Correct 5 ms 8796 KB n=500
50 Correct 6 ms 8796 KB n=500
51 Correct 5 ms 8796 KB n=500
52 Correct 6 ms 8792 KB n=500
53 Correct 6 ms 8796 KB n=500
54 Correct 11 ms 8796 KB n=500
55 Correct 3 ms 9048 KB n=278
56 Correct 12 ms 8900 KB n=500
57 Correct 12 ms 8792 KB n=500
58 Correct 12 ms 8792 KB n=500
59 Correct 68 ms 10844 KB n=2000
60 Correct 74 ms 11244 KB n=2000
61 Correct 78 ms 10844 KB n=2000
62 Correct 81 ms 10840 KB n=2000
63 Correct 75 ms 10844 KB n=2000
64 Correct 82 ms 10844 KB n=2000
65 Correct 72 ms 10840 KB n=2000
66 Correct 82 ms 10844 KB n=2000
67 Correct 82 ms 10844 KB n=2000
68 Correct 77 ms 11048 KB n=2000
69 Correct 391 ms 11016 KB n=2000
70 Correct 393 ms 10844 KB n=2000
71 Correct 386 ms 11016 KB n=2000
72 Correct 98 ms 10840 KB n=2000
73 Correct 101 ms 11092 KB n=2000
74 Correct 57 ms 10840 KB n=1844
75 Correct 99 ms 10844 KB n=2000
76 Correct 194 ms 11004 KB n=2000
77 Correct 197 ms 11008 KB n=2000
78 Correct 203 ms 11352 KB n=2000
79 Correct 59 ms 10844 KB n=2000
80 Correct 66 ms 10844 KB n=2000
81 Correct 69 ms 11036 KB n=2000
82 Correct 58 ms 10844 KB n=2000
83 Correct 66 ms 11064 KB n=2000
84 Correct 77 ms 11012 KB n=2000
85 Correct 79 ms 11352 KB n=2000
86 Correct 82 ms 10840 KB n=2000
87 Correct 78 ms 11040 KB n=2000
88 Correct 285 ms 11100 KB n=2000
89 Correct 280 ms 11096 KB n=2000
90 Correct 237 ms 11100 KB n=2000
91 Correct 200 ms 11012 KB n=2000
92 Execution timed out 4021 ms 36244 KB Time limit exceeded
93 Halted 0 ms 0 KB -