oj.uz

Submission #501196

# Submission time Handle Problem Language Result Execution time Memory
501196 2022-01-02T15:26:54 Z beksultan04 Birthday gift (IZhO18_treearray) C++14
100 / 100
 2087 ms 120996 KB 
#include <bits/stdc++.h>
using namespace std;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
#define int long long
#define pii pair<int,int>
#define ret return
#define fr first
#define sc second
#define OK puts("OK");
#define NO puts("NO");
#define YES puts("YES");
#define all(s) s.begin(),s.end()
#define allr(s) s.rbegin(),s.rend()
#define nosol puts("-1");
#define pb push_back
#define endi puts("");
#define ordered_set tree <int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update>
const int N = 5e5+12,INF = 1e9+7;
int a[N],der[N],cnt,up[20][N],tin[N],tout[N];
vector <int> g[N];
set <pii> s[N];
void dfs(int x,int p){
	up[0][x] = p;
	tin[x] = cnt++;
	for (int i=1;i<20;++i)
		up[i][x] = up[i-1][up[i-1][x]];
	
	for (auto to: g[x]){
		if (to == p)continue;
		dfs(to,x);
	}
	tout[x] = cnt++;
}

bool is_up(int a,int b){
	ret ((tin[a] <= tin[b]) && (tout[a] >= tout[b]));
}

int lca(int a,int b){
	
	if (is_up(a,b))ret a;
	if (is_up(b,a))ret b;
	
	for (int i=19;i>=0;--i){
		if (!is_up(up[i][a],b)){
			a = up[i][a];
		}
	}
	ret up[0][a];
}



main(){
	int n,m,i,j,t;
	cin>>n>>m>>t;
	for (i=1;i<n;++i){
		int x,y;
		cin>>x>>y;
		g[x].pb(y);
		g[y].pb(x);
	}
	dfs(1,1);
	for (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 (t--){
		int type;
		cin>>type;
		if (type == 2){
			int l,r,v;
			cin>>l>>r>>v;
			
			auto it = s[v].lower_bound({l,0});
			if (it == s[v].end() || (it->sc) > r ){
				cout <<"-1 -1\n";
			}
			else {
				cout <<it->fr<<" "<<it->sc<<"\n";
			}
		}
		else {
			int pos,x;
			cin>>pos>>x;
			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] = x;
			
			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:56:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   56 | main(){
      | ^~~~
treearray.cpp: In function 'int main()':
treearray.cpp:57:12: warning: unused variable 'j' [-Wunused-variable]
   57 |  int n,m,i,j,t;
      |            ^

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 35656 KB n=5
2 Correct 21 ms 35740 KB n=100
3 Correct 19 ms 35708 KB n=100
4 Correct 19 ms 35660 KB n=100
5 Correct 18 ms 35712 KB n=100
6 Correct 18 ms 35744 KB n=100
7 Correct 23 ms 35756 KB n=100
8 Correct 19 ms 35628 KB n=100
9 Correct 22 ms 35700 KB n=100
10 Correct 18 ms 35660 KB n=100
11 Correct 23 ms 35660 KB n=100
12 Correct 20 ms 35660 KB n=100
13 Correct 18 ms 35660 KB n=100
14 Correct 18 ms 35632 KB n=100
15 Correct 19 ms 35688 KB n=100
16 Correct 17 ms 35660 KB n=100
17 Correct 19 ms 35648 KB n=100
18 Correct 27 ms 35660 KB n=100
19 Correct 20 ms 35676 KB n=100
20 Correct 22 ms 35752 KB n=100
21 Correct 20 ms 35660 KB n=100
22 Correct 23 ms 35660 KB n=100
23 Correct 20 ms 35672 KB n=100
24 Correct 19 ms 35636 KB n=100
25 Correct 19 ms 35660 KB n=100
26 Correct 24 ms 35652 KB n=12
27 Correct 19 ms 35660 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 35656 KB n=5
2 Correct 21 ms 35740 KB n=100
3 Correct 19 ms 35708 KB n=100
4 Correct 19 ms 35660 KB n=100
5 Correct 18 ms 35712 KB n=100
6 Correct 18 ms 35744 KB n=100
7 Correct 23 ms 35756 KB n=100
8 Correct 19 ms 35628 KB n=100
9 Correct 22 ms 35700 KB n=100
10 Correct 18 ms 35660 KB n=100
11 Correct 23 ms 35660 KB n=100
12 Correct 20 ms 35660 KB n=100
13 Correct 18 ms 35660 KB n=100
14 Correct 18 ms 35632 KB n=100
15 Correct 19 ms 35688 KB n=100
16 Correct 17 ms 35660 KB n=100
17 Correct 19 ms 35648 KB n=100
18 Correct 27 ms 35660 KB n=100
19 Correct 20 ms 35676 KB n=100
20 Correct 22 ms 35752 KB n=100
21 Correct 20 ms 35660 KB n=100
22 Correct 23 ms 35660 KB n=100
23 Correct 20 ms 35672 KB n=100
24 Correct 19 ms 35636 KB n=100
25 Correct 19 ms 35660 KB n=100
26 Correct 24 ms 35652 KB n=12
27 Correct 19 ms 35660 KB n=100
28 Correct 23 ms 35836 KB n=500
29 Correct 19 ms 35804 KB n=500
30 Correct 20 ms 35788 KB n=500
31 Correct 23 ms 35872 KB n=500
32 Correct 21 ms 35868 KB n=500
33 Correct 23 ms 35836 KB n=500
34 Correct 22 ms 35788 KB n=500
35 Correct 21 ms 35848 KB n=500
36 Correct 20 ms 35784 KB n=500
37 Correct 26 ms 35780 KB n=500
38 Correct 22 ms 35788 KB n=500
39 Correct 19 ms 35788 KB n=500
40 Correct 21 ms 35868 KB n=500
41 Correct 24 ms 35780 KB n=500
42 Correct 22 ms 35840 KB n=500
43 Correct 19 ms 35788 KB n=500
44 Correct 20 ms 35804 KB n=500
45 Correct 18 ms 35796 KB n=500
46 Correct 26 ms 35800 KB n=500
47 Correct 22 ms 35816 KB n=500
48 Correct 25 ms 35784 KB n=500
49 Correct 21 ms 35916 KB n=500
50 Correct 20 ms 35900 KB n=500
51 Correct 23 ms 35848 KB n=500
52 Correct 19 ms 35788 KB n=500
53 Correct 21 ms 35788 KB n=500
54 Correct 24 ms 35788 KB n=500
55 Correct 24 ms 35748 KB n=278
56 Correct 20 ms 35796 KB n=500
57 Correct 19 ms 35788 KB n=500
58 Correct 20 ms 35788 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 35656 KB n=5
2 Correct 21 ms 35740 KB n=100
3 Correct 19 ms 35708 KB n=100
4 Correct 19 ms 35660 KB n=100
5 Correct 18 ms 35712 KB n=100
6 Correct 18 ms 35744 KB n=100
7 Correct 23 ms 35756 KB n=100
8 Correct 19 ms 35628 KB n=100
9 Correct 22 ms 35700 KB n=100
10 Correct 18 ms 35660 KB n=100
11 Correct 23 ms 35660 KB n=100
12 Correct 20 ms 35660 KB n=100
13 Correct 18 ms 35660 KB n=100
14 Correct 18 ms 35632 KB n=100
15 Correct 19 ms 35688 KB n=100
16 Correct 17 ms 35660 KB n=100
17 Correct 19 ms 35648 KB n=100
18 Correct 27 ms 35660 KB n=100
19 Correct 20 ms 35676 KB n=100
20 Correct 22 ms 35752 KB n=100
21 Correct 20 ms 35660 KB n=100
22 Correct 23 ms 35660 KB n=100
23 Correct 20 ms 35672 KB n=100
24 Correct 19 ms 35636 KB n=100
25 Correct 19 ms 35660 KB n=100
26 Correct 24 ms 35652 KB n=12
27 Correct 19 ms 35660 KB n=100
28 Correct 23 ms 35836 KB n=500
29 Correct 19 ms 35804 KB n=500
30 Correct 20 ms 35788 KB n=500
31 Correct 23 ms 35872 KB n=500
32 Correct 21 ms 35868 KB n=500
33 Correct 23 ms 35836 KB n=500
34 Correct 22 ms 35788 KB n=500
35 Correct 21 ms 35848 KB n=500
36 Correct 20 ms 35784 KB n=500
37 Correct 26 ms 35780 KB n=500
38 Correct 22 ms 35788 KB n=500
39 Correct 19 ms 35788 KB n=500
40 Correct 21 ms 35868 KB n=500
41 Correct 24 ms 35780 KB n=500
42 Correct 22 ms 35840 KB n=500
43 Correct 19 ms 35788 KB n=500
44 Correct 20 ms 35804 KB n=500
45 Correct 18 ms 35796 KB n=500
46 Correct 26 ms 35800 KB n=500
47 Correct 22 ms 35816 KB n=500
48 Correct 25 ms 35784 KB n=500
49 Correct 21 ms 35916 KB n=500
50 Correct 20 ms 35900 KB n=500
51 Correct 23 ms 35848 KB n=500
52 Correct 19 ms 35788 KB n=500
53 Correct 21 ms 35788 KB n=500
54 Correct 24 ms 35788 KB n=500
55 Correct 24 ms 35748 KB n=278
56 Correct 20 ms 35796 KB n=500
57 Correct 19 ms 35788 KB n=500
58 Correct 20 ms 35788 KB n=500
59 Correct 24 ms 36432 KB n=2000
60 Correct 24 ms 36440 KB n=2000
61 Correct 28 ms 36436 KB n=2000
62 Correct 31 ms 36356 KB n=2000
63 Correct 28 ms 36428 KB n=2000
64 Correct 25 ms 36396 KB n=2000
65 Correct 25 ms 36388 KB n=2000
66 Correct 23 ms 36444 KB n=2000
67 Correct 26 ms 36428 KB n=2000
68 Correct 25 ms 36484 KB n=2000
69 Correct 30 ms 36460 KB n=2000
70 Correct 33 ms 36380 KB n=2000
71 Correct 26 ms 36440 KB n=2000
72 Correct 25 ms 36428 KB n=2000
73 Correct 26 ms 36400 KB n=2000
74 Correct 25 ms 36288 KB n=1844
75 Correct 26 ms 36348 KB n=2000
76 Correct 26 ms 36392 KB n=2000
77 Correct 28 ms 36480 KB n=2000
78 Correct 25 ms 36516 KB n=2000
79 Correct 25 ms 36436 KB n=2000
80 Correct 28 ms 36428 KB n=2000
81 Correct 27 ms 36472 KB n=2000
82 Correct 27 ms 36428 KB n=2000
83 Correct 26 ms 36504 KB n=2000
84 Correct 29 ms 36428 KB n=2000
85 Correct 25 ms 36428 KB n=2000
86 Correct 25 ms 36440 KB n=2000
87 Correct 25 ms 36444 KB n=2000
88 Correct 29 ms 36448 KB n=2000
89 Correct 27 ms 36428 KB n=2000
90 Correct 22 ms 36428 KB n=2000
91 Correct 25 ms 36420 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 35656 KB n=5
2 Correct 21 ms 35740 KB n=100
3 Correct 19 ms 35708 KB n=100
4 Correct 19 ms 35660 KB n=100
5 Correct 18 ms 35712 KB n=100
6 Correct 18 ms 35744 KB n=100
7 Correct 23 ms 35756 KB n=100
8 Correct 19 ms 35628 KB n=100
9 Correct 22 ms 35700 KB n=100
10 Correct 18 ms 35660 KB n=100
11 Correct 23 ms 35660 KB n=100
12 Correct 20 ms 35660 KB n=100
13 Correct 18 ms 35660 KB n=100
14 Correct 18 ms 35632 KB n=100
15 Correct 19 ms 35688 KB n=100
16 Correct 17 ms 35660 KB n=100
17 Correct 19 ms 35648 KB n=100
18 Correct 27 ms 35660 KB n=100
19 Correct 20 ms 35676 KB n=100
20 Correct 22 ms 35752 KB n=100
21 Correct 20 ms 35660 KB n=100
22 Correct 23 ms 35660 KB n=100
23 Correct 20 ms 35672 KB n=100
24 Correct 19 ms 35636 KB n=100
25 Correct 19 ms 35660 KB n=100
26 Correct 24 ms 35652 KB n=12
27 Correct 19 ms 35660 KB n=100
28 Correct 23 ms 35836 KB n=500
29 Correct 19 ms 35804 KB n=500
30 Correct 20 ms 35788 KB n=500
31 Correct 23 ms 35872 KB n=500
32 Correct 21 ms 35868 KB n=500
33 Correct 23 ms 35836 KB n=500
34 Correct 22 ms 35788 KB n=500
35 Correct 21 ms 35848 KB n=500
36 Correct 20 ms 35784 KB n=500
37 Correct 26 ms 35780 KB n=500
38 Correct 22 ms 35788 KB n=500
39 Correct 19 ms 35788 KB n=500
40 Correct 21 ms 35868 KB n=500
41 Correct 24 ms 35780 KB n=500
42 Correct 22 ms 35840 KB n=500
43 Correct 19 ms 35788 KB n=500
44 Correct 20 ms 35804 KB n=500
45 Correct 18 ms 35796 KB n=500
46 Correct 26 ms 35800 KB n=500
47 Correct 22 ms 35816 KB n=500
48 Correct 25 ms 35784 KB n=500
49 Correct 21 ms 35916 KB n=500
50 Correct 20 ms 35900 KB n=500
51 Correct 23 ms 35848 KB n=500
52 Correct 19 ms 35788 KB n=500
53 Correct 21 ms 35788 KB n=500
54 Correct 24 ms 35788 KB n=500
55 Correct 24 ms 35748 KB n=278
56 Correct 20 ms 35796 KB n=500
57 Correct 19 ms 35788 KB n=500
58 Correct 20 ms 35788 KB n=500
59 Correct 24 ms 36432 KB n=2000
60 Correct 24 ms 36440 KB n=2000
61 Correct 28 ms 36436 KB n=2000
62 Correct 31 ms 36356 KB n=2000
63 Correct 28 ms 36428 KB n=2000
64 Correct 25 ms 36396 KB n=2000
65 Correct 25 ms 36388 KB n=2000
66 Correct 23 ms 36444 KB n=2000
67 Correct 26 ms 36428 KB n=2000
68 Correct 25 ms 36484 KB n=2000
69 Correct 30 ms 36460 KB n=2000
70 Correct 33 ms 36380 KB n=2000
71 Correct 26 ms 36440 KB n=2000
72 Correct 25 ms 36428 KB n=2000
73 Correct 26 ms 36400 KB n=2000
74 Correct 25 ms 36288 KB n=1844
75 Correct 26 ms 36348 KB n=2000
76 Correct 26 ms 36392 KB n=2000
77 Correct 28 ms 36480 KB n=2000
78 Correct 25 ms 36516 KB n=2000
79 Correct 25 ms 36436 KB n=2000
80 Correct 28 ms 36428 KB n=2000
81 Correct 27 ms 36472 KB n=2000
82 Correct 27 ms 36428 KB n=2000
83 Correct 26 ms 36504 KB n=2000
84 Correct 29 ms 36428 KB n=2000
85 Correct 25 ms 36428 KB n=2000
86 Correct 25 ms 36440 KB n=2000
87 Correct 25 ms 36444 KB n=2000
88 Correct 29 ms 36448 KB n=2000
89 Correct 27 ms 36428 KB n=2000
90 Correct 22 ms 36428 KB n=2000
91 Correct 25 ms 36420 KB n=2000
92 Correct 2087 ms 112280 KB n=200000
93 Correct 1619 ms 117136 KB n=200000
94 Correct 1164 ms 120160 KB n=200000
95 Correct 1969 ms 111988 KB n=200000
96 Correct 2019 ms 111952 KB n=200000
97 Correct 1667 ms 116304 KB n=200000
98 Correct 1958 ms 111984 KB n=200000
99 Correct 1969 ms 112368 KB n=200000
100 Correct 2009 ms 112112 KB n=200000
101 Correct 942 ms 120996 KB n=200000
102 Correct 1296 ms 113480 KB n=200000
103 Correct 1296 ms 113520 KB n=200000
104 Correct 1212 ms 113452 KB n=200000
105 Correct 1284 ms 113868 KB n=200000
106 Correct 1381 ms 113860 KB n=200000
107 Correct 1275 ms 113864 KB n=200000
108 Correct 1802 ms 112320 KB n=200000
109 Correct 1795 ms 112416 KB n=200000
110 Correct 1785 ms 112608 KB n=200000
111 Correct 1659 ms 111680 KB n=200000
112 Correct 917 ms 120348 KB n=200000
113 Correct 1584 ms 116188 KB n=200000
114 Correct 1629 ms 111828 KB n=200000
115 Correct 2029 ms 114392 KB n=200000
116 Correct 1824 ms 112244 KB n=200000
117 Correct 898 ms 120372 KB n=200000
118 Correct 1786 ms 115344 KB n=200000
119 Correct 1833 ms 112224 KB n=200000
120 Correct 779 ms 119932 KB n=200000
121 Correct 850 ms 119852 KB n=200000
122 Correct 783 ms 120296 KB n=200000
123 Correct 1270 ms 113820 KB n=200000
124 Correct 317 ms 56104 KB n=25264