oj.uz

Submission #1024182

# Submission time Handle Problem Language Result Execution time Memory
1024182 2024-07-15T15:00:35 Z Acanikolic Birthday gift (IZhO18_treearray) C++14
56 / 100
 222 ms 1108 KB 
#include <bits/stdc++.h>  

#define int long long 

#define pb push_back
 
#define F first
 
#define S second
 
using namespace std;
 
const int N = 2000 + 10;
 
const int mod = 1e9 + 7;
 
const int inf = 1e9;

const int LOG = 17;

vector<int>g[N];
int up[N][LOG],in[N],out[N],timer = 0,a[N],st[N * 4];

void dfs(int x,int par) {
	in[x] = ++timer;
	up[x][0] = par;
	for(int j = 1; j < LOG; j++) up[x][j] = up[up[x][j - 1]][j - 1];
	for(auto X : g[x]) {
		if(X != par) {
			dfs(X,x);
		}
	}
	out[x] = timer;
}

bool inn(int u,int v) {
	return in[u] <= in[v] && out[u] >= out[v];
}

int lca(int u,int v) {
	if(u == inf) return v;
	if(v == inf) return u;
	if(inn(u,v)) return u;
	if(inn(v,u)) return v;
	for(int j = LOG - 1; j >= 0; j--) {
		if(up[u][j] > 0 && !inn(up[u][j],v)) u = up[u][j];
	}
	return up[u][0];
}

void build(int node,int tl,int tr) {
	if(tl == tr) {
		st[node] = a[tl];
		return;
	}
	int mid = (tl + tr) / 2;
	build(node * 2,tl,mid);
	build(node * 2 + 1,mid + 1,tr);
	st[node] = lca(st[node * 2],st[node * 2 + 1]);
}

void modify(int node,int tl,int tr,int i,int v) {
	if(tl > i || tr < i) return;
	if(tl == tr) {
		st[node] = v;
		return;
	}
	int mid = (tl + tr) / 2;
	modify(node * 2,tl,mid,i,v);
	modify(node * 2 + 1,mid + 1,tr,i,v);
	st[node] = lca(st[node * 2],st[node * 2 + 1]);
}

int get(int node,int tl,int tr,int l,int r) {
	if(tl > r || tr < l) return inf;
	if(tl >= l && tr <= r) return st[node];
	int mid = (tl + tr) / 2;
	return lca(get(node * 2,tl,mid,l,r),get(node * 2 + 1,mid + 1,tr,l,r));
}
 
signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
 
 	int n,m,q;
 	cin >> n >> m >> q;
 	for(int i = 1; i <= n - 1; i++) {
 		int u,v;
 		cin >> u >> v;
 		g[u].pb(v);
 		g[v].pb(u);
 	}
 	dfs(1,0);
 	for(int i = 1; i <= m; i++) cin >> a[i];
 	build(1,1,m);
 	while(q--) {
 		int type;
 		cin >> type;
 		if(type == 1) {
 			int i,v;
 			cin >> i >> v;
 			modify(1,1,m,i,v);
 			a[i] = v;
 		}else {
 			int l,r,v;
 			cin >> l >> r >> v;
 			int L = -1,R = -1;
 			for(int i = l; i + 1 <= r; i++) {
 				if(get(1,1,m,i,i + 1) == v) {
 					L = i;
 					R = i + 1;
 					break;
 				}
 			}
 			for(int i = l; i <= r; i++) if(a[i] == v) L = i,R = i;
 			cout << L << " " << R << "\n";
 		}
 	}
    return 0;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB n=5
2 Correct 1 ms 344 KB n=100
3 Correct 0 ms 512 KB n=100
4 Correct 1 ms 348 KB n=100
5 Correct 1 ms 348 KB n=100
6 Correct 1 ms 348 KB n=100
7 Correct 1 ms 348 KB n=100
8 Correct 1 ms 348 KB n=100
9 Correct 1 ms 348 KB n=100
10 Correct 0 ms 348 KB n=100
11 Correct 0 ms 348 KB n=100
12 Correct 0 ms 348 KB n=100
13 Correct 0 ms 344 KB n=100
14 Correct 1 ms 348 KB n=100
15 Correct 1 ms 348 KB n=100
16 Correct 0 ms 348 KB n=100
17 Correct 1 ms 508 KB n=100
18 Correct 1 ms 348 KB n=100
19 Correct 0 ms 348 KB n=100
20 Correct 1 ms 348 KB n=100
21 Correct 0 ms 344 KB n=100
22 Correct 1 ms 348 KB n=100
23 Correct 1 ms 348 KB n=100
24 Correct 1 ms 348 KB n=100
25 Correct 1 ms 348 KB n=100
26 Correct 1 ms 348 KB n=12
27 Correct 1 ms 348 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB n=5
2 Correct 1 ms 344 KB n=100
3 Correct 0 ms 512 KB n=100
4 Correct 1 ms 348 KB n=100
5 Correct 1 ms 348 KB n=100
6 Correct 1 ms 348 KB n=100
7 Correct 1 ms 348 KB n=100
8 Correct 1 ms 348 KB n=100
9 Correct 1 ms 348 KB n=100
10 Correct 0 ms 348 KB n=100
11 Correct 0 ms 348 KB n=100
12 Correct 0 ms 348 KB n=100
13 Correct 0 ms 344 KB n=100
14 Correct 1 ms 348 KB n=100
15 Correct 1 ms 348 KB n=100
16 Correct 0 ms 348 KB n=100
17 Correct 1 ms 508 KB n=100
18 Correct 1 ms 348 KB n=100
19 Correct 0 ms 348 KB n=100
20 Correct 1 ms 348 KB n=100
21 Correct 0 ms 344 KB n=100
22 Correct 1 ms 348 KB n=100
23 Correct 1 ms 348 KB n=100
24 Correct 1 ms 348 KB n=100
25 Correct 1 ms 348 KB n=100
26 Correct 1 ms 348 KB n=12
27 Correct 1 ms 348 KB n=100
28 Correct 1 ms 600 KB n=500
29 Correct 2 ms 604 KB n=500
30 Correct 2 ms 604 KB n=500
31 Correct 2 ms 604 KB n=500
32 Correct 1 ms 604 KB n=500
33 Correct 2 ms 604 KB n=500
34 Correct 1 ms 604 KB n=500
35 Correct 2 ms 604 KB n=500
36 Correct 9 ms 604 KB n=500
37 Correct 9 ms 604 KB n=500
38 Correct 8 ms 604 KB n=500
39 Correct 5 ms 604 KB n=500
40 Correct 5 ms 604 KB n=500
41 Correct 5 ms 600 KB n=500
42 Correct 7 ms 600 KB n=500
43 Correct 5 ms 520 KB n=500
44 Correct 4 ms 604 KB n=500
45 Correct 1 ms 520 KB n=500
46 Correct 2 ms 604 KB n=500
47 Correct 2 ms 600 KB n=500
48 Correct 1 ms 604 KB n=500
49 Correct 2 ms 604 KB n=500
50 Correct 4 ms 648 KB n=500
51 Correct 4 ms 604 KB n=500
52 Correct 3 ms 604 KB n=500
53 Correct 3 ms 604 KB n=500
54 Correct 4 ms 604 KB n=500
55 Correct 1 ms 348 KB n=278
56 Correct 7 ms 604 KB n=500
57 Correct 9 ms 604 KB n=500
58 Correct 7 ms 604 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB n=5
2 Correct 1 ms 344 KB n=100
3 Correct 0 ms 512 KB n=100
4 Correct 1 ms 348 KB n=100
5 Correct 1 ms 348 KB n=100
6 Correct 1 ms 348 KB n=100
7 Correct 1 ms 348 KB n=100
8 Correct 1 ms 348 KB n=100
9 Correct 1 ms 348 KB n=100
10 Correct 0 ms 348 KB n=100
11 Correct 0 ms 348 KB n=100
12 Correct 0 ms 348 KB n=100
13 Correct 0 ms 344 KB n=100
14 Correct 1 ms 348 KB n=100
15 Correct 1 ms 348 KB n=100
16 Correct 0 ms 348 KB n=100
17 Correct 1 ms 508 KB n=100
18 Correct 1 ms 348 KB n=100
19 Correct 0 ms 348 KB n=100
20 Correct 1 ms 348 KB n=100
21 Correct 0 ms 344 KB n=100
22 Correct 1 ms 348 KB n=100
23 Correct 1 ms 348 KB n=100
24 Correct 1 ms 348 KB n=100
25 Correct 1 ms 348 KB n=100
26 Correct 1 ms 348 KB n=12
27 Correct 1 ms 348 KB n=100
28 Correct 1 ms 600 KB n=500
29 Correct 2 ms 604 KB n=500
30 Correct 2 ms 604 KB n=500
31 Correct 2 ms 604 KB n=500
32 Correct 1 ms 604 KB n=500
33 Correct 2 ms 604 KB n=500
34 Correct 1 ms 604 KB n=500
35 Correct 2 ms 604 KB n=500
36 Correct 9 ms 604 KB n=500
37 Correct 9 ms 604 KB n=500
38 Correct 8 ms 604 KB n=500
39 Correct 5 ms 604 KB n=500
40 Correct 5 ms 604 KB n=500
41 Correct 5 ms 600 KB n=500
42 Correct 7 ms 600 KB n=500
43 Correct 5 ms 520 KB n=500
44 Correct 4 ms 604 KB n=500
45 Correct 1 ms 520 KB n=500
46 Correct 2 ms 604 KB n=500
47 Correct 2 ms 600 KB n=500
48 Correct 1 ms 604 KB n=500
49 Correct 2 ms 604 KB n=500
50 Correct 4 ms 648 KB n=500
51 Correct 4 ms 604 KB n=500
52 Correct 3 ms 604 KB n=500
53 Correct 3 ms 604 KB n=500
54 Correct 4 ms 604 KB n=500
55 Correct 1 ms 348 KB n=278
56 Correct 7 ms 604 KB n=500
57 Correct 9 ms 604 KB n=500
58 Correct 7 ms 604 KB n=500
59 Correct 3 ms 856 KB n=2000
60 Correct 29 ms 1072 KB n=2000
61 Correct 30 ms 1040 KB n=2000
62 Correct 22 ms 860 KB n=2000
63 Correct 3 ms 860 KB n=2000
64 Correct 28 ms 856 KB n=2000
65 Correct 2 ms 856 KB n=2000
66 Correct 33 ms 860 KB n=2000
67 Correct 4 ms 856 KB n=2000
68 Correct 28 ms 860 KB n=2000
69 Correct 222 ms 980 KB n=2000
70 Correct 181 ms 1108 KB n=2000
71 Correct 162 ms 860 KB n=2000
72 Correct 82 ms 860 KB n=2000
73 Correct 87 ms 860 KB n=2000
74 Correct 2 ms 860 KB n=1844
75 Correct 95 ms 964 KB n=2000
76 Correct 82 ms 856 KB n=2000
77 Correct 82 ms 856 KB n=2000
78 Correct 87 ms 860 KB n=2000
79 Correct 4 ms 860 KB n=2000
80 Correct 27 ms 860 KB n=2000
81 Correct 26 ms 856 KB n=2000
82 Correct 2 ms 860 KB n=2000
83 Correct 26 ms 860 KB n=2000
84 Correct 74 ms 860 KB n=2000
85 Correct 64 ms 860 KB n=2000
86 Correct 69 ms 860 KB n=2000
87 Correct 65 ms 856 KB n=2000
88 Correct 154 ms 860 KB n=2000
89 Correct 153 ms 860 KB n=2000
90 Correct 71 ms 860 KB n=2000
91 Correct 120 ms 856 KB n=2000

Subtask #4
0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB n=5
2 Correct 1 ms 344 KB n=100
3 Correct 0 ms 512 KB n=100
4 Correct 1 ms 348 KB n=100
5 Correct 1 ms 348 KB n=100
6 Correct 1 ms 348 KB n=100
7 Correct 1 ms 348 KB n=100
8 Correct 1 ms 348 KB n=100
9 Correct 1 ms 348 KB n=100
10 Correct 0 ms 348 KB n=100
11 Correct 0 ms 348 KB n=100
12 Correct 0 ms 348 KB n=100
13 Correct 0 ms 344 KB n=100
14 Correct 1 ms 348 KB n=100
15 Correct 1 ms 348 KB n=100
16 Correct 0 ms 348 KB n=100
17 Correct 1 ms 508 KB n=100
18 Correct 1 ms 348 KB n=100
19 Correct 0 ms 348 KB n=100
20 Correct 1 ms 348 KB n=100
21 Correct 0 ms 344 KB n=100
22 Correct 1 ms 348 KB n=100
23 Correct 1 ms 348 KB n=100
24 Correct 1 ms 348 KB n=100
25 Correct 1 ms 348 KB n=100
26 Correct 1 ms 348 KB n=12
27 Correct 1 ms 348 KB n=100
28 Correct 1 ms 600 KB n=500
29 Correct 2 ms 604 KB n=500
30 Correct 2 ms 604 KB n=500
31 Correct 2 ms 604 KB n=500
32 Correct 1 ms 604 KB n=500
33 Correct 2 ms 604 KB n=500
34 Correct 1 ms 604 KB n=500
35 Correct 2 ms 604 KB n=500
36 Correct 9 ms 604 KB n=500
37 Correct 9 ms 604 KB n=500
38 Correct 8 ms 604 KB n=500
39 Correct 5 ms 604 KB n=500
40 Correct 5 ms 604 KB n=500
41 Correct 5 ms 600 KB n=500
42 Correct 7 ms 600 KB n=500
43 Correct 5 ms 520 KB n=500
44 Correct 4 ms 604 KB n=500
45 Correct 1 ms 520 KB n=500
46 Correct 2 ms 604 KB n=500
47 Correct 2 ms 600 KB n=500
48 Correct 1 ms 604 KB n=500
49 Correct 2 ms 604 KB n=500
50 Correct 4 ms 648 KB n=500
51 Correct 4 ms 604 KB n=500
52 Correct 3 ms 604 KB n=500
53 Correct 3 ms 604 KB n=500
54 Correct 4 ms 604 KB n=500
55 Correct 1 ms 348 KB n=278
56 Correct 7 ms 604 KB n=500
57 Correct 9 ms 604 KB n=500
58 Correct 7 ms 604 KB n=500
59 Correct 3 ms 856 KB n=2000
60 Correct 29 ms 1072 KB n=2000
61 Correct 30 ms 1040 KB n=2000
62 Correct 22 ms 860 KB n=2000
63 Correct 3 ms 860 KB n=2000
64 Correct 28 ms 856 KB n=2000
65 Correct 2 ms 856 KB n=2000
66 Correct 33 ms 860 KB n=2000
67 Correct 4 ms 856 KB n=2000
68 Correct 28 ms 860 KB n=2000
69 Correct 222 ms 980 KB n=2000
70 Correct 181 ms 1108 KB n=2000
71 Correct 162 ms 860 KB n=2000
72 Correct 82 ms 860 KB n=2000
73 Correct 87 ms 860 KB n=2000
74 Correct 2 ms 860 KB n=1844
75 Correct 95 ms 964 KB n=2000
76 Correct 82 ms 856 KB n=2000
77 Correct 82 ms 856 KB n=2000
78 Correct 87 ms 860 KB n=2000
79 Correct 4 ms 860 KB n=2000
80 Correct 27 ms 860 KB n=2000
81 Correct 26 ms 856 KB n=2000
82 Correct 2 ms 860 KB n=2000
83 Correct 26 ms 860 KB n=2000
84 Correct 74 ms 860 KB n=2000
85 Correct 64 ms 860 KB n=2000
86 Correct 69 ms 860 KB n=2000
87 Correct 65 ms 856 KB n=2000
88 Correct 154 ms 860 KB n=2000
89 Correct 153 ms 860 KB n=2000
90 Correct 71 ms 860 KB n=2000
91 Correct 120 ms 856 KB n=2000
92 Runtime error 1 ms 600 KB Execution killed with signal 11
93 Halted 0 ms 0 KB -