oj.uz

Submission #462573

# Submission time Handle Problem Language Result Execution time Memory
462573 2021-08-10T18:50:27 Z Jasiekstrz Klasika (COCI20_klasika) C++17
110 / 110
 364 ms 157288 KB 
#include<bits/stdc++.h>
#define fi first
#define se second
using namespace std;
const int N=2e5;
const int L=30;
struct Trie
{
	int mn_time;
	Trie *e[2];
};
const int TRIE_SIZE=N*(L+1)+10;
Trie triemem[TRIE_SIZE];
int trieit=0;
Trie* newtrie()
{
	return &triemem[trieit++];
}
int getmn_time(Trie* x)
{
	return (x==nullptr ? N+10:x->mn_time);
}
Trie* build(int c,int t,int l)
{
	Trie* rt=newtrie();
	rt->mn_time=t;
	if(l<0)
		return rt;
	bool tmp=(c&(1<<l));
	//cerr<<tmp<<" "<<c<<"\n";
	rt->e[tmp]=build(c,t,l-1);
	return rt;
}
Trie* merge(Trie* x,Trie* y)
{
	if(x==nullptr)
		return y;
	if(y==nullptr)
		return x;
	x->mn_time=min(x->mn_time,y->mn_time);
	for(int i:{0,1})
	{
		//cerr<<i<<" "<<getmn_time(x->e[i])<<" "<<getmn_time(y->e[i])<<"\n";
		x->e[i]=merge(x->e[i],y->e[i]);
	}
	return x;
}
int read(Trie* x,int c,int t,int l)
{
	if(l==-1)
		return c;
	bool tmp=(c&(1<<l));
	//cerr<<c<<" "<<t<<" "<<l<<" "<<tmp<<"\n";
	c|=(1<<l);
	if(getmn_time(x->e[!tmp])<t)
		return read(x->e[!tmp],c,t,l-1);
	c^=(1<<l);
	return read(x->e[tmp],c,t,l-1);
}

vector<pair<int,int>> que[N+10];
int tim[N+10];
vector<int> e[N+10];
int d[N+10];
int ans[N+10];
bool is_query[N+10];
Trie* dfs(int x)
{
	Trie* rt=build(d[x],tim[x],L);
	for(auto v:e[x])
	{
		auto tmp=dfs(v);
		rt=merge(rt,tmp);
	}
	for(auto [t,c]:que[x])
		ans[t]=read(rt,c,t,L);
	return rt;
}
int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);
	int q,n=1;
	cin>>q;
	for(int i=1;i<=q;i++)
	{
		string t;
		int a,b;
		cin>>t>>a>>b;
		if(t=="Add")
		{
			e[a].push_back(++n);
			d[n]=d[a]^b;
			tim[n]=i;
		}
		else
		{
			is_query[i]=true;
			que[b].emplace_back(i,d[a]);
		}
	}
	dfs(1);
	for(int i=1;i<=q;i++)
	{
		if(is_query[i])
			cout<<ans[i]<<"\n";
	}
	return 0;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9676 KB Output is correct
2 Correct 7 ms 9804 KB Output is correct
3 Correct 7 ms 9804 KB Output is correct
4 Correct 6 ms 9804 KB Output is correct
5 Correct 6 ms 9676 KB Output is correct
6 Correct 7 ms 9724 KB Output is correct
7 Correct 6 ms 9724 KB Output is correct
8 Correct 6 ms 9808 KB Output is correct
9 Correct 6 ms 9676 KB Output is correct
10 Correct 6 ms 9732 KB Output is correct
11 Correct 6 ms 9804 KB Output is correct
12 Correct 7 ms 9780 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9676 KB Output is correct
2 Correct 7 ms 9804 KB Output is correct
3 Correct 7 ms 9804 KB Output is correct
4 Correct 6 ms 9804 KB Output is correct
5 Correct 6 ms 9676 KB Output is correct
6 Correct 7 ms 9724 KB Output is correct
7 Correct 6 ms 9724 KB Output is correct
8 Correct 6 ms 9808 KB Output is correct
9 Correct 6 ms 9676 KB Output is correct
10 Correct 6 ms 9732 KB Output is correct
11 Correct 6 ms 9804 KB Output is correct
12 Correct 7 ms 9780 KB Output is correct
13 Correct 8 ms 10072 KB Output is correct
14 Correct 8 ms 10480 KB Output is correct
15 Correct 9 ms 10828 KB Output is correct
16 Correct 9 ms 11212 KB Output is correct
17 Correct 8 ms 10060 KB Output is correct
18 Correct 8 ms 10316 KB Output is correct
19 Correct 8 ms 10700 KB Output is correct
20 Correct 9 ms 10956 KB Output is correct
21 Correct 9 ms 10060 KB Output is correct
22 Correct 8 ms 10444 KB Output is correct
23 Correct 8 ms 10768 KB Output is correct
24 Correct 9 ms 10944 KB Output is correct

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 205 ms 48812 KB Output is correct
2 Correct 268 ms 87008 KB Output is correct
3 Correct 293 ms 121228 KB Output is correct
4 Correct 333 ms 156420 KB Output is correct
5 Correct 211 ms 47428 KB Output is correct
6 Correct 261 ms 78228 KB Output is correct
7 Correct 322 ms 108496 KB Output is correct
8 Correct 364 ms 139124 KB Output is correct
9 Correct 203 ms 48128 KB Output is correct
10 Correct 265 ms 79832 KB Output is correct
11 Correct 287 ms 111392 KB Output is correct
12 Correct 307 ms 142484 KB Output is correct

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9676 KB Output is correct
2 Correct 7 ms 9804 KB Output is correct
3 Correct 7 ms 9804 KB Output is correct
4 Correct 6 ms 9804 KB Output is correct
5 Correct 6 ms 9676 KB Output is correct
6 Correct 7 ms 9724 KB Output is correct
7 Correct 6 ms 9724 KB Output is correct
8 Correct 6 ms 9808 KB Output is correct
9 Correct 6 ms 9676 KB Output is correct
10 Correct 6 ms 9732 KB Output is correct
11 Correct 6 ms 9804 KB Output is correct
12 Correct 7 ms 9780 KB Output is correct
13 Correct 8 ms 10072 KB Output is correct
14 Correct 8 ms 10480 KB Output is correct
15 Correct 9 ms 10828 KB Output is correct
16 Correct 9 ms 11212 KB Output is correct
17 Correct 8 ms 10060 KB Output is correct
18 Correct 8 ms 10316 KB Output is correct
19 Correct 8 ms 10700 KB Output is correct
20 Correct 9 ms 10956 KB Output is correct
21 Correct 9 ms 10060 KB Output is correct
22 Correct 8 ms 10444 KB Output is correct
23 Correct 8 ms 10768 KB Output is correct
24 Correct 9 ms 10944 KB Output is correct
25 Correct 205 ms 48812 KB Output is correct
26 Correct 268 ms 87008 KB Output is correct
27 Correct 293 ms 121228 KB Output is correct
28 Correct 333 ms 156420 KB Output is correct
29 Correct 211 ms 47428 KB Output is correct
30 Correct 261 ms 78228 KB Output is correct
31 Correct 322 ms 108496 KB Output is correct
32 Correct 364 ms 139124 KB Output is correct
33 Correct 203 ms 48128 KB Output is correct
34 Correct 265 ms 79832 KB Output is correct
35 Correct 287 ms 111392 KB Output is correct
36 Correct 307 ms 142484 KB Output is correct
37 Correct 241 ms 53348 KB Output is correct
38 Correct 317 ms 88104 KB Output is correct
39 Correct 308 ms 123328 KB Output is correct
40 Correct 356 ms 157288 KB Output is correct
41 Correct 201 ms 48764 KB Output is correct
42 Correct 260 ms 79504 KB Output is correct
43 Correct 324 ms 109600 KB Output is correct
44 Correct 350 ms 139832 KB Output is correct
45 Correct 197 ms 49348 KB Output is correct
46 Correct 237 ms 81284 KB Output is correct
47 Correct 286 ms 112176 KB Output is correct
48 Correct 308 ms 143260 KB Output is correct