oj.uz

Submission #260637

# Submission time Handle Problem Language Result Execution time Memory
260637 2020-08-10T15:40:24 Z uacoder123 Birthday gift (IZhO18_treearray) C++14
100 / 100
 1741 ms 91204 KB 
#include <bits/stdc++.h>
using namespace std;
#define F first
#define S second
#define FOR(i,a,b) for (auto i = (a); i <= (b); ++i)
#define NFOR(i,a,b) for(auto i = (a); i >= (b); --i)
#define all(x) (x).begin(), (x).end()
#define sz(x) lli(x.size())
#define mp(i,a) make_pair(i,a)
#define pb(a) push_back(a)
#define bit(x,b) (x&(1LL<<b))

typedef long long int lli;
typedef pair <lli,lli> ii;
typedef pair <lli,ii> iii;
typedef vector <lli> vi;
vi al[200001];
set<ii> ans[200001];
int par[200001][32],din[200001],dout[200001],ti=0,n,m,q,arr[200001];
void dfs(int node,int p)
{
	par[node][0]=p;
	for(int i=1;i<32;++i)
		par[node][i]=par[par[node][i-1]][i-1];
	din[node]=ti++;
	for(int i=0;i<al[node].size();++i)
		if(al[node][i]!=p)
			dfs(al[node][i],node);
	dout[node]=ti++;
}
bool isa(int f,int s)
{
	return (din[f]<=din[s])&&(dout[f]>=dout[s]);
}
int lca(int f,int s)
{
	if(isa(f,s))
		return f;
	if(isa(s,f))
		return s;
	for(int i=31;i>=0;--i)
		if(!isa(par[f][i],s))
			f=par[f][i];
	return par[f][0];
}
int main()
{
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  cin>>n>>m>>q;
  for(int i=0;i<n-1;++i)
  {
  	int f,s;
  	cin>>f>>s;
  	al[f].pb(s);
  	al[s].pb(f);
  }
  dfs(1,1);
  for(int i=0;i<m;++i)
  	cin>>arr[i];
  for(int i=0;i<m;++i)
  {
  	ans[arr[i]].insert(mp(i,i));
  	int l;
  	if(i!=0)
  	{
  		l=lca(arr[i-1],arr[i]);
  		ans[l].insert(mp(i-1,i));
  	}
  	if(i!=m-1)
  	{
  		l=lca(arr[i+1],arr[i]);
  		ans[l].insert(mp(i,i+1));	
  	}
  }
  for(int i=0;i<q;++i)
  {
  	int t,f,s,l,v;
  	cin>>t>>f>>s;
  	if(t==1)
  	{
  		f--;
  		ans[arr[f]].erase(mp(f,f));
  		if(f!=0)
  		{
  			l=lca(arr[f-1],arr[f]);
  			ans[l].erase(mp(f-1,f));
  		}
  		if(f!=m-1)
  		{
  			l=lca(arr[f+1],arr[f]);
  			ans[l].erase(mp(f,f+1));	
  		}
  		arr[f]=s;
  		ans[s].insert(mp(f,f));
  		if(f!=0)
  		{
  			l=lca(arr[f-1],arr[f]);
  			ans[l].insert(mp(f-1,f));
  		}
  		if(f!=m-1)
  		{
  			l=lca(arr[f+1],arr[f]);
  			ans[l].insert(mp(f,f+1));	
  		}
  	}
  	else
  	{
  		f--;
  		s--;
  		cin>>v;
  		auto it=ans[v].lower_bound(mp(f,0));
  		if(it!=ans[v].end())
  		{
  			if((*it).S<=s)
  				cout<<(*it).F+1<<' '<<(*it).S+1<<endl;
  			else
  				cout<<-1<<' '<<-1<<endl;
  		}
  		else
  			cout<<-1<<' '<<-1<<endl;
  	}
  }
  return(0);
}

Compilation message

treearray.cpp: In function 'void dfs(int, int)':
treearray.cpp:26:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<al[node].size();++i)
              ~^~~~~~~~~~~~~~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14464 KB n=5
2 Correct 10 ms 14464 KB n=100
3 Correct 11 ms 14464 KB n=100
4 Correct 10 ms 14464 KB n=100
5 Correct 10 ms 14464 KB n=100
6 Correct 10 ms 14464 KB n=100
7 Correct 12 ms 14464 KB n=100
8 Correct 11 ms 14592 KB n=100
9 Correct 13 ms 14464 KB n=100
10 Correct 10 ms 14464 KB n=100
11 Correct 11 ms 14592 KB n=100
12 Correct 12 ms 14464 KB n=100
13 Correct 12 ms 14464 KB n=100
14 Correct 10 ms 14464 KB n=100
15 Correct 10 ms 14464 KB n=100
16 Correct 12 ms 14464 KB n=100
17 Correct 12 ms 14464 KB n=100
18 Correct 10 ms 14464 KB n=100
19 Correct 10 ms 14464 KB n=100
20 Correct 12 ms 14464 KB n=100
21 Correct 10 ms 14464 KB n=100
22 Correct 12 ms 14464 KB n=100
23 Correct 10 ms 14464 KB n=100
24 Correct 11 ms 14464 KB n=100
25 Correct 10 ms 14464 KB n=100
26 Correct 10 ms 14464 KB n=12
27 Correct 11 ms 14464 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14464 KB n=5
2 Correct 10 ms 14464 KB n=100
3 Correct 11 ms 14464 KB n=100
4 Correct 10 ms 14464 KB n=100
5 Correct 10 ms 14464 KB n=100
6 Correct 10 ms 14464 KB n=100
7 Correct 12 ms 14464 KB n=100
8 Correct 11 ms 14592 KB n=100
9 Correct 13 ms 14464 KB n=100
10 Correct 10 ms 14464 KB n=100
11 Correct 11 ms 14592 KB n=100
12 Correct 12 ms 14464 KB n=100
13 Correct 12 ms 14464 KB n=100
14 Correct 10 ms 14464 KB n=100
15 Correct 10 ms 14464 KB n=100
16 Correct 12 ms 14464 KB n=100
17 Correct 12 ms 14464 KB n=100
18 Correct 10 ms 14464 KB n=100
19 Correct 10 ms 14464 KB n=100
20 Correct 12 ms 14464 KB n=100
21 Correct 10 ms 14464 KB n=100
22 Correct 12 ms 14464 KB n=100
23 Correct 10 ms 14464 KB n=100
24 Correct 11 ms 14464 KB n=100
25 Correct 10 ms 14464 KB n=100
26 Correct 10 ms 14464 KB n=12
27 Correct 11 ms 14464 KB n=100
28 Correct 12 ms 14592 KB n=500
29 Correct 14 ms 14592 KB n=500
30 Correct 13 ms 14592 KB n=500
31 Correct 11 ms 14592 KB n=500
32 Correct 12 ms 14592 KB n=500
33 Correct 13 ms 14592 KB n=500
34 Correct 14 ms 14592 KB n=500
35 Correct 13 ms 14592 KB n=500
36 Correct 12 ms 14592 KB n=500
37 Correct 14 ms 14720 KB n=500
38 Correct 11 ms 14592 KB n=500
39 Correct 13 ms 14628 KB n=500
40 Correct 13 ms 14592 KB n=500
41 Correct 11 ms 14592 KB n=500
42 Correct 11 ms 14592 KB n=500
43 Correct 12 ms 14676 KB n=500
44 Correct 11 ms 14592 KB n=500
45 Correct 14 ms 14592 KB n=500
46 Correct 12 ms 14592 KB n=500
47 Correct 13 ms 14592 KB n=500
48 Correct 12 ms 14592 KB n=500
49 Correct 14 ms 14592 KB n=500
50 Correct 12 ms 14592 KB n=500
51 Correct 11 ms 14620 KB n=500
52 Correct 13 ms 14592 KB n=500
53 Correct 11 ms 14592 KB n=500
54 Correct 13 ms 14592 KB n=500
55 Correct 10 ms 14592 KB n=278
56 Correct 12 ms 14592 KB n=500
57 Correct 12 ms 14592 KB n=500
58 Correct 14 ms 14592 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14464 KB n=5
2 Correct 10 ms 14464 KB n=100
3 Correct 11 ms 14464 KB n=100
4 Correct 10 ms 14464 KB n=100
5 Correct 10 ms 14464 KB n=100
6 Correct 10 ms 14464 KB n=100
7 Correct 12 ms 14464 KB n=100
8 Correct 11 ms 14592 KB n=100
9 Correct 13 ms 14464 KB n=100
10 Correct 10 ms 14464 KB n=100
11 Correct 11 ms 14592 KB n=100
12 Correct 12 ms 14464 KB n=100
13 Correct 12 ms 14464 KB n=100
14 Correct 10 ms 14464 KB n=100
15 Correct 10 ms 14464 KB n=100
16 Correct 12 ms 14464 KB n=100
17 Correct 12 ms 14464 KB n=100
18 Correct 10 ms 14464 KB n=100
19 Correct 10 ms 14464 KB n=100
20 Correct 12 ms 14464 KB n=100
21 Correct 10 ms 14464 KB n=100
22 Correct 12 ms 14464 KB n=100
23 Correct 10 ms 14464 KB n=100
24 Correct 11 ms 14464 KB n=100
25 Correct 10 ms 14464 KB n=100
26 Correct 10 ms 14464 KB n=12
27 Correct 11 ms 14464 KB n=100
28 Correct 12 ms 14592 KB n=500
29 Correct 14 ms 14592 KB n=500
30 Correct 13 ms 14592 KB n=500
31 Correct 11 ms 14592 KB n=500
32 Correct 12 ms 14592 KB n=500
33 Correct 13 ms 14592 KB n=500
34 Correct 14 ms 14592 KB n=500
35 Correct 13 ms 14592 KB n=500
36 Correct 12 ms 14592 KB n=500
37 Correct 14 ms 14720 KB n=500
38 Correct 11 ms 14592 KB n=500
39 Correct 13 ms 14628 KB n=500
40 Correct 13 ms 14592 KB n=500
41 Correct 11 ms 14592 KB n=500
42 Correct 11 ms 14592 KB n=500
43 Correct 12 ms 14676 KB n=500
44 Correct 11 ms 14592 KB n=500
45 Correct 14 ms 14592 KB n=500
46 Correct 12 ms 14592 KB n=500
47 Correct 13 ms 14592 KB n=500
48 Correct 12 ms 14592 KB n=500
49 Correct 14 ms 14592 KB n=500
50 Correct 12 ms 14592 KB n=500
51 Correct 11 ms 14620 KB n=500
52 Correct 13 ms 14592 KB n=500
53 Correct 11 ms 14592 KB n=500
54 Correct 13 ms 14592 KB n=500
55 Correct 10 ms 14592 KB n=278
56 Correct 12 ms 14592 KB n=500
57 Correct 12 ms 14592 KB n=500
58 Correct 14 ms 14592 KB n=500
59 Correct 17 ms 15104 KB n=2000
60 Correct 16 ms 15232 KB n=2000
61 Correct 17 ms 15232 KB n=2000
62 Correct 18 ms 15104 KB n=2000
63 Correct 18 ms 15104 KB n=2000
64 Correct 20 ms 15104 KB n=2000
65 Correct 16 ms 15104 KB n=2000
66 Correct 17 ms 15232 KB n=2000
67 Correct 18 ms 15104 KB n=2000
68 Correct 17 ms 15104 KB n=2000
69 Correct 18 ms 15104 KB n=2000
70 Correct 18 ms 15104 KB n=2000
71 Correct 18 ms 15104 KB n=2000
72 Correct 18 ms 15104 KB n=2000
73 Correct 18 ms 15104 KB n=2000
74 Correct 17 ms 15104 KB n=1844
75 Correct 20 ms 15104 KB n=2000
76 Correct 20 ms 15104 KB n=2000
77 Correct 21 ms 15104 KB n=2000
78 Correct 18 ms 15104 KB n=2000
79 Correct 20 ms 15128 KB n=2000
80 Correct 16 ms 15232 KB n=2000
81 Correct 16 ms 15104 KB n=2000
82 Correct 18 ms 15104 KB n=2000
83 Correct 19 ms 15232 KB n=2000
84 Correct 20 ms 15104 KB n=2000
85 Correct 17 ms 15104 KB n=2000
86 Correct 20 ms 15104 KB n=2000
87 Correct 20 ms 15104 KB n=2000
88 Correct 18 ms 15232 KB n=2000
89 Correct 16 ms 15232 KB n=2000
90 Correct 18 ms 15232 KB n=2000
91 Correct 21 ms 15104 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14464 KB n=5
2 Correct 10 ms 14464 KB n=100
3 Correct 11 ms 14464 KB n=100
4 Correct 10 ms 14464 KB n=100
5 Correct 10 ms 14464 KB n=100
6 Correct 10 ms 14464 KB n=100
7 Correct 12 ms 14464 KB n=100
8 Correct 11 ms 14592 KB n=100
9 Correct 13 ms 14464 KB n=100
10 Correct 10 ms 14464 KB n=100
11 Correct 11 ms 14592 KB n=100
12 Correct 12 ms 14464 KB n=100
13 Correct 12 ms 14464 KB n=100
14 Correct 10 ms 14464 KB n=100
15 Correct 10 ms 14464 KB n=100
16 Correct 12 ms 14464 KB n=100
17 Correct 12 ms 14464 KB n=100
18 Correct 10 ms 14464 KB n=100
19 Correct 10 ms 14464 KB n=100
20 Correct 12 ms 14464 KB n=100
21 Correct 10 ms 14464 KB n=100
22 Correct 12 ms 14464 KB n=100
23 Correct 10 ms 14464 KB n=100
24 Correct 11 ms 14464 KB n=100
25 Correct 10 ms 14464 KB n=100
26 Correct 10 ms 14464 KB n=12
27 Correct 11 ms 14464 KB n=100
28 Correct 12 ms 14592 KB n=500
29 Correct 14 ms 14592 KB n=500
30 Correct 13 ms 14592 KB n=500
31 Correct 11 ms 14592 KB n=500
32 Correct 12 ms 14592 KB n=500
33 Correct 13 ms 14592 KB n=500
34 Correct 14 ms 14592 KB n=500
35 Correct 13 ms 14592 KB n=500
36 Correct 12 ms 14592 KB n=500
37 Correct 14 ms 14720 KB n=500
38 Correct 11 ms 14592 KB n=500
39 Correct 13 ms 14628 KB n=500
40 Correct 13 ms 14592 KB n=500
41 Correct 11 ms 14592 KB n=500
42 Correct 11 ms 14592 KB n=500
43 Correct 12 ms 14676 KB n=500
44 Correct 11 ms 14592 KB n=500
45 Correct 14 ms 14592 KB n=500
46 Correct 12 ms 14592 KB n=500
47 Correct 13 ms 14592 KB n=500
48 Correct 12 ms 14592 KB n=500
49 Correct 14 ms 14592 KB n=500
50 Correct 12 ms 14592 KB n=500
51 Correct 11 ms 14620 KB n=500
52 Correct 13 ms 14592 KB n=500
53 Correct 11 ms 14592 KB n=500
54 Correct 13 ms 14592 KB n=500
55 Correct 10 ms 14592 KB n=278
56 Correct 12 ms 14592 KB n=500
57 Correct 12 ms 14592 KB n=500
58 Correct 14 ms 14592 KB n=500
59 Correct 17 ms 15104 KB n=2000
60 Correct 16 ms 15232 KB n=2000
61 Correct 17 ms 15232 KB n=2000
62 Correct 18 ms 15104 KB n=2000
63 Correct 18 ms 15104 KB n=2000
64 Correct 20 ms 15104 KB n=2000
65 Correct 16 ms 15104 KB n=2000
66 Correct 17 ms 15232 KB n=2000
67 Correct 18 ms 15104 KB n=2000
68 Correct 17 ms 15104 KB n=2000
69 Correct 18 ms 15104 KB n=2000
70 Correct 18 ms 15104 KB n=2000
71 Correct 18 ms 15104 KB n=2000
72 Correct 18 ms 15104 KB n=2000
73 Correct 18 ms 15104 KB n=2000
74 Correct 17 ms 15104 KB n=1844
75 Correct 20 ms 15104 KB n=2000
76 Correct 20 ms 15104 KB n=2000
77 Correct 21 ms 15104 KB n=2000
78 Correct 18 ms 15104 KB n=2000
79 Correct 20 ms 15128 KB n=2000
80 Correct 16 ms 15232 KB n=2000
81 Correct 16 ms 15104 KB n=2000
82 Correct 18 ms 15104 KB n=2000
83 Correct 19 ms 15232 KB n=2000
84 Correct 20 ms 15104 KB n=2000
85 Correct 17 ms 15104 KB n=2000
86 Correct 20 ms 15104 KB n=2000
87 Correct 20 ms 15104 KB n=2000
88 Correct 18 ms 15232 KB n=2000
89 Correct 16 ms 15232 KB n=2000
90 Correct 18 ms 15232 KB n=2000
91 Correct 21 ms 15104 KB n=2000
92 Correct 1414 ms 82528 KB n=200000
93 Correct 1244 ms 87544 KB n=200000
94 Correct 1085 ms 90280 KB n=200000
95 Correct 1272 ms 82276 KB n=200000
96 Correct 1266 ms 82284 KB n=200000
97 Correct 1376 ms 86528 KB n=200000
98 Correct 1312 ms 82416 KB n=200000
99 Correct 1389 ms 82552 KB n=200000
100 Correct 1439 ms 82284 KB n=200000
101 Correct 1000 ms 91204 KB n=200000
102 Correct 1095 ms 83704 KB n=200000
103 Correct 1104 ms 83704 KB n=200000
104 Correct 1095 ms 83704 KB n=200000
105 Correct 1070 ms 84088 KB n=200000
106 Correct 1100 ms 84188 KB n=200000
107 Correct 1063 ms 84052 KB n=200000
108 Correct 1335 ms 82488 KB n=200000
109 Correct 1371 ms 82492 KB n=200000
110 Correct 1329 ms 82552 KB n=200000
111 Correct 1267 ms 81964 KB n=200000
112 Correct 906 ms 90488 KB n=200000
113 Correct 1407 ms 86528 KB n=200000
114 Correct 1287 ms 81892 KB n=200000
115 Correct 1741 ms 84444 KB n=200000
116 Correct 1253 ms 82428 KB n=200000
117 Correct 922 ms 90612 KB n=200000
118 Correct 1505 ms 85492 KB n=200000
119 Correct 1305 ms 82404 KB n=200000
120 Correct 898 ms 90100 KB n=200000
121 Correct 843 ms 90108 KB n=200000
122 Correct 861 ms 90436 KB n=200000
123 Correct 1093 ms 83832 KB n=200000
124 Correct 340 ms 33480 KB n=25264