oj.uz

Submission #501568

# Submission time Handle Problem Language Result Execution time Memory
501568 2022-01-04T04:09:14 Z Aktan Birthday gift (IZhO18_treearray) C++17
100 / 100
 1640 ms 95488 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
#define ordered_set tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update>
#define int long long
#define ft first
#define sc second
using namespace std;
const int mod=1e9+7,INF=1e17;

vector<int> v[200005];
int tin[200005],tout[200005],a[200005],cnt=1,up[200005][20];
set<pair<int,int>> s[200005];
void dfs(int x,int p){
	tin[x]=cnt++;
	up[x][0]=p;
	for(int i=1;i<20;i++){
		up[x][i]=up[up[x][i-1]][i-1];
	}
	for(auto w : v[x]){
		if(w==p){
			continue;
		}
		else{
			dfs(w,x);
		}
	}
	tout[x]=cnt++;
}
bool is_up(int x,int y){
	return tin[x]<=tin[y] && tout[x]>=tout[y];
}
int lca(int x,int y){
	if(is_up(x,y)){
		return x;
	}
	if(is_up(y,x)){
		return y;
	}
	for(int i=19;i>=0;i--){
		if(!is_up(up[x][i],y)){
			x=up[x][i];
		}
	}
	return up[x][0];
	
}
main(){
   int n,m,q,x1,y1;
   cin >> n >> m >> q;
   for(int i=1;i<n;i++){
   	cin >> x1 >> y1;
   	v[x1].push_back(y1);
   	v[y1].push_back(x1);
   }
   dfs(1,1);
   for(int i=1;i<=m;i++){
   	cin >> a[i];
   	if(i>1){
   		int lc=lca(a[i],a[i-1]);
   		s[lc].insert({i-1,i});
	   }
	   s[a[i]].insert({i,i});
   }
   while(q--){
   	int type;
   	cin >> type;
   	if(type==2){
   		int l,r,ver;
   		cin >> l >> r >> ver;
   		auto it=s[ver].lower_bound({l,0});
   		if(it == s[ver].end() || it->sc > r){
   			cout << "-1 -1" << endl;
		   }
		   else{
		   	cout << it->ft <<  " " << it->sc << endl;
		   }
	   }
	   else{
	   	int pos,val;
	   	cin >> pos >> val;
	   	s[a[pos]].erase({pos,pos});
			if (pos > 1){
				int lc = lca(a[pos],a[pos-1]);
				s[lc].erase({pos-1,pos});
			}
			if (pos < m){
				int lc = lca(a[pos],a[pos+1]);
				s[lc].erase({pos,pos+1});
			}
			
			a[pos] = val;
			
			s[a[pos]].insert({pos,pos});
			if (pos > 1){
				int lc = lca(a[pos],a[pos-1]);
				s[lc].insert({pos-1,pos});
			}
			if (pos < m){
				int lc = lca(a[pos],a[pos+1]);
				s[lc].insert({pos,pos+1});
			}
	   }
   }
}

Compilation message

treearray.cpp:49:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   49 | main(){
      | ^~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14412 KB n=5
2 Correct 7 ms 14392 KB n=100
3 Correct 7 ms 14412 KB n=100
4 Correct 8 ms 14396 KB n=100
5 Correct 8 ms 14412 KB n=100
6 Correct 8 ms 14392 KB n=100
7 Correct 8 ms 14412 KB n=100
8 Correct 8 ms 14372 KB n=100
9 Correct 7 ms 14412 KB n=100
10 Correct 7 ms 14396 KB n=100
11 Correct 7 ms 14384 KB n=100
12 Correct 7 ms 14416 KB n=100
13 Correct 8 ms 14412 KB n=100
14 Correct 10 ms 14396 KB n=100
15 Correct 8 ms 14412 KB n=100
16 Correct 7 ms 14412 KB n=100
17 Correct 11 ms 14452 KB n=100
18 Correct 8 ms 14400 KB n=100
19 Correct 8 ms 14412 KB n=100
20 Correct 7 ms 14412 KB n=100
21 Correct 10 ms 14424 KB n=100
22 Correct 7 ms 14392 KB n=100
23 Correct 8 ms 14392 KB n=100
24 Correct 7 ms 14412 KB n=100
25 Correct 8 ms 14412 KB n=100
26 Correct 7 ms 14312 KB n=12
27 Correct 8 ms 14412 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14412 KB n=5
2 Correct 7 ms 14392 KB n=100
3 Correct 7 ms 14412 KB n=100
4 Correct 8 ms 14396 KB n=100
5 Correct 8 ms 14412 KB n=100
6 Correct 8 ms 14392 KB n=100
7 Correct 8 ms 14412 KB n=100
8 Correct 8 ms 14372 KB n=100
9 Correct 7 ms 14412 KB n=100
10 Correct 7 ms 14396 KB n=100
11 Correct 7 ms 14384 KB n=100
12 Correct 7 ms 14416 KB n=100
13 Correct 8 ms 14412 KB n=100
14 Correct 10 ms 14396 KB n=100
15 Correct 8 ms 14412 KB n=100
16 Correct 7 ms 14412 KB n=100
17 Correct 11 ms 14452 KB n=100
18 Correct 8 ms 14400 KB n=100
19 Correct 8 ms 14412 KB n=100
20 Correct 7 ms 14412 KB n=100
21 Correct 10 ms 14424 KB n=100
22 Correct 7 ms 14392 KB n=100
23 Correct 8 ms 14392 KB n=100
24 Correct 7 ms 14412 KB n=100
25 Correct 8 ms 14412 KB n=100
26 Correct 7 ms 14312 KB n=12
27 Correct 8 ms 14412 KB n=100
28 Correct 9 ms 14540 KB n=500
29 Correct 9 ms 14572 KB n=500
30 Correct 11 ms 14532 KB n=500
31 Correct 9 ms 14532 KB n=500
32 Correct 9 ms 14540 KB n=500
33 Correct 8 ms 14540 KB n=500
34 Correct 9 ms 14540 KB n=500
35 Correct 9 ms 14540 KB n=500
36 Correct 9 ms 14508 KB n=500
37 Correct 9 ms 14540 KB n=500
38 Correct 9 ms 14528 KB n=500
39 Correct 9 ms 14540 KB n=500
40 Correct 9 ms 14572 KB n=500
41 Correct 10 ms 14524 KB n=500
42 Correct 11 ms 14540 KB n=500
43 Correct 8 ms 14528 KB n=500
44 Correct 9 ms 14524 KB n=500
45 Correct 8 ms 14540 KB n=500
46 Correct 9 ms 14588 KB n=500
47 Correct 9 ms 14540 KB n=500
48 Correct 10 ms 14540 KB n=500
49 Correct 8 ms 14540 KB n=500
50 Correct 8 ms 14536 KB n=500
51 Correct 9 ms 14540 KB n=500
52 Correct 8 ms 14552 KB n=500
53 Correct 9 ms 14504 KB n=500
54 Correct 9 ms 14540 KB n=500
55 Correct 8 ms 14540 KB n=278
56 Correct 9 ms 14540 KB n=500
57 Correct 9 ms 14532 KB n=500
58 Correct 9 ms 14540 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14412 KB n=5
2 Correct 7 ms 14392 KB n=100
3 Correct 7 ms 14412 KB n=100
4 Correct 8 ms 14396 KB n=100
5 Correct 8 ms 14412 KB n=100
6 Correct 8 ms 14392 KB n=100
7 Correct 8 ms 14412 KB n=100
8 Correct 8 ms 14372 KB n=100
9 Correct 7 ms 14412 KB n=100
10 Correct 7 ms 14396 KB n=100
11 Correct 7 ms 14384 KB n=100
12 Correct 7 ms 14416 KB n=100
13 Correct 8 ms 14412 KB n=100
14 Correct 10 ms 14396 KB n=100
15 Correct 8 ms 14412 KB n=100
16 Correct 7 ms 14412 KB n=100
17 Correct 11 ms 14452 KB n=100
18 Correct 8 ms 14400 KB n=100
19 Correct 8 ms 14412 KB n=100
20 Correct 7 ms 14412 KB n=100
21 Correct 10 ms 14424 KB n=100
22 Correct 7 ms 14392 KB n=100
23 Correct 8 ms 14392 KB n=100
24 Correct 7 ms 14412 KB n=100
25 Correct 8 ms 14412 KB n=100
26 Correct 7 ms 14312 KB n=12
27 Correct 8 ms 14412 KB n=100
28 Correct 9 ms 14540 KB n=500
29 Correct 9 ms 14572 KB n=500
30 Correct 11 ms 14532 KB n=500
31 Correct 9 ms 14532 KB n=500
32 Correct 9 ms 14540 KB n=500
33 Correct 8 ms 14540 KB n=500
34 Correct 9 ms 14540 KB n=500
35 Correct 9 ms 14540 KB n=500
36 Correct 9 ms 14508 KB n=500
37 Correct 9 ms 14540 KB n=500
38 Correct 9 ms 14528 KB n=500
39 Correct 9 ms 14540 KB n=500
40 Correct 9 ms 14572 KB n=500
41 Correct 10 ms 14524 KB n=500
42 Correct 11 ms 14540 KB n=500
43 Correct 8 ms 14528 KB n=500
44 Correct 9 ms 14524 KB n=500
45 Correct 8 ms 14540 KB n=500
46 Correct 9 ms 14588 KB n=500
47 Correct 9 ms 14540 KB n=500
48 Correct 10 ms 14540 KB n=500
49 Correct 8 ms 14540 KB n=500
50 Correct 8 ms 14536 KB n=500
51 Correct 9 ms 14540 KB n=500
52 Correct 8 ms 14552 KB n=500
53 Correct 9 ms 14504 KB n=500
54 Correct 9 ms 14540 KB n=500
55 Correct 8 ms 14540 KB n=278
56 Correct 9 ms 14540 KB n=500
57 Correct 9 ms 14532 KB n=500
58 Correct 9 ms 14540 KB n=500
59 Correct 13 ms 15040 KB n=2000
60 Correct 13 ms 15180 KB n=2000
61 Correct 15 ms 15204 KB n=2000
62 Correct 14 ms 15180 KB n=2000
63 Correct 14 ms 15172 KB n=2000
64 Correct 16 ms 15136 KB n=2000
65 Correct 13 ms 15044 KB n=2000
66 Correct 13 ms 15176 KB n=2000
67 Correct 14 ms 15052 KB n=2000
68 Correct 14 ms 15296 KB n=2000
69 Correct 15 ms 15052 KB n=2000
70 Correct 16 ms 15180 KB n=2000
71 Correct 15 ms 15128 KB n=2000
72 Correct 15 ms 15172 KB n=2000
73 Correct 14 ms 15136 KB n=2000
74 Correct 13 ms 15040 KB n=1844
75 Correct 14 ms 15044 KB n=2000
76 Correct 14 ms 15164 KB n=2000
77 Correct 14 ms 15048 KB n=2000
78 Correct 15 ms 15052 KB n=2000
79 Correct 14 ms 15052 KB n=2000
80 Correct 12 ms 15180 KB n=2000
81 Correct 14 ms 15180 KB n=2000
82 Correct 14 ms 15136 KB n=2000
83 Correct 13 ms 15172 KB n=2000
84 Correct 16 ms 15156 KB n=2000
85 Correct 14 ms 15176 KB n=2000
86 Correct 18 ms 15144 KB n=2000
87 Correct 13 ms 15176 KB n=2000
88 Correct 12 ms 15136 KB n=2000
89 Correct 12 ms 15180 KB n=2000
90 Correct 12 ms 15180 KB n=2000
91 Correct 20 ms 15052 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14412 KB n=5
2 Correct 7 ms 14392 KB n=100
3 Correct 7 ms 14412 KB n=100
4 Correct 8 ms 14396 KB n=100
5 Correct 8 ms 14412 KB n=100
6 Correct 8 ms 14392 KB n=100
7 Correct 8 ms 14412 KB n=100
8 Correct 8 ms 14372 KB n=100
9 Correct 7 ms 14412 KB n=100
10 Correct 7 ms 14396 KB n=100
11 Correct 7 ms 14384 KB n=100
12 Correct 7 ms 14416 KB n=100
13 Correct 8 ms 14412 KB n=100
14 Correct 10 ms 14396 KB n=100
15 Correct 8 ms 14412 KB n=100
16 Correct 7 ms 14412 KB n=100
17 Correct 11 ms 14452 KB n=100
18 Correct 8 ms 14400 KB n=100
19 Correct 8 ms 14412 KB n=100
20 Correct 7 ms 14412 KB n=100
21 Correct 10 ms 14424 KB n=100
22 Correct 7 ms 14392 KB n=100
23 Correct 8 ms 14392 KB n=100
24 Correct 7 ms 14412 KB n=100
25 Correct 8 ms 14412 KB n=100
26 Correct 7 ms 14312 KB n=12
27 Correct 8 ms 14412 KB n=100
28 Correct 9 ms 14540 KB n=500
29 Correct 9 ms 14572 KB n=500
30 Correct 11 ms 14532 KB n=500
31 Correct 9 ms 14532 KB n=500
32 Correct 9 ms 14540 KB n=500
33 Correct 8 ms 14540 KB n=500
34 Correct 9 ms 14540 KB n=500
35 Correct 9 ms 14540 KB n=500
36 Correct 9 ms 14508 KB n=500
37 Correct 9 ms 14540 KB n=500
38 Correct 9 ms 14528 KB n=500
39 Correct 9 ms 14540 KB n=500
40 Correct 9 ms 14572 KB n=500
41 Correct 10 ms 14524 KB n=500
42 Correct 11 ms 14540 KB n=500
43 Correct 8 ms 14528 KB n=500
44 Correct 9 ms 14524 KB n=500
45 Correct 8 ms 14540 KB n=500
46 Correct 9 ms 14588 KB n=500
47 Correct 9 ms 14540 KB n=500
48 Correct 10 ms 14540 KB n=500
49 Correct 8 ms 14540 KB n=500
50 Correct 8 ms 14536 KB n=500
51 Correct 9 ms 14540 KB n=500
52 Correct 8 ms 14552 KB n=500
53 Correct 9 ms 14504 KB n=500
54 Correct 9 ms 14540 KB n=500
55 Correct 8 ms 14540 KB n=278
56 Correct 9 ms 14540 KB n=500
57 Correct 9 ms 14532 KB n=500
58 Correct 9 ms 14540 KB n=500
59 Correct 13 ms 15040 KB n=2000
60 Correct 13 ms 15180 KB n=2000
61 Correct 15 ms 15204 KB n=2000
62 Correct 14 ms 15180 KB n=2000
63 Correct 14 ms 15172 KB n=2000
64 Correct 16 ms 15136 KB n=2000
65 Correct 13 ms 15044 KB n=2000
66 Correct 13 ms 15176 KB n=2000
67 Correct 14 ms 15052 KB n=2000
68 Correct 14 ms 15296 KB n=2000
69 Correct 15 ms 15052 KB n=2000
70 Correct 16 ms 15180 KB n=2000
71 Correct 15 ms 15128 KB n=2000
72 Correct 15 ms 15172 KB n=2000
73 Correct 14 ms 15136 KB n=2000
74 Correct 13 ms 15040 KB n=1844
75 Correct 14 ms 15044 KB n=2000
76 Correct 14 ms 15164 KB n=2000
77 Correct 14 ms 15048 KB n=2000
78 Correct 15 ms 15052 KB n=2000
79 Correct 14 ms 15052 KB n=2000
80 Correct 12 ms 15180 KB n=2000
81 Correct 14 ms 15180 KB n=2000
82 Correct 14 ms 15136 KB n=2000
83 Correct 13 ms 15172 KB n=2000
84 Correct 16 ms 15156 KB n=2000
85 Correct 14 ms 15176 KB n=2000
86 Correct 18 ms 15144 KB n=2000
87 Correct 13 ms 15176 KB n=2000
88 Correct 12 ms 15136 KB n=2000
89 Correct 12 ms 15180 KB n=2000
90 Correct 12 ms 15180 KB n=2000
91 Correct 20 ms 15052 KB n=2000
92 Correct 1082 ms 88388 KB n=200000
93 Correct 1161 ms 91952 KB n=200000
94 Correct 951 ms 94860 KB n=200000
95 Correct 1069 ms 87968 KB n=200000
96 Correct 1092 ms 87980 KB n=200000
97 Correct 1242 ms 91128 KB n=200000
98 Correct 1094 ms 87916 KB n=200000
99 Correct 1271 ms 87544 KB n=200000
100 Correct 1120 ms 87972 KB n=200000
101 Correct 876 ms 95488 KB n=200000
102 Correct 942 ms 89032 KB n=200000
103 Correct 899 ms 89156 KB n=200000
104 Correct 937 ms 88836 KB n=200000
105 Correct 889 ms 88720 KB n=200000
106 Correct 941 ms 88592 KB n=200000
107 Correct 924 ms 88636 KB n=200000
108 Correct 1188 ms 87512 KB n=200000
109 Correct 1137 ms 87404 KB n=200000
110 Correct 1177 ms 87340 KB n=200000
111 Correct 1137 ms 87364 KB n=200000
112 Correct 953 ms 94572 KB n=200000
113 Correct 1323 ms 90568 KB n=200000
114 Correct 1089 ms 87372 KB n=200000
115 Correct 1640 ms 88328 KB n=200000
116 Correct 1058 ms 87016 KB n=200000
117 Correct 859 ms 94480 KB n=200000
118 Correct 1319 ms 89248 KB n=200000
119 Correct 999 ms 86936 KB n=200000
120 Correct 761 ms 94468 KB n=200000
121 Correct 773 ms 94560 KB n=200000
122 Correct 771 ms 94984 KB n=200000
123 Correct 922 ms 87832 KB n=200000
124 Correct 266 ms 34756 KB n=25264