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Trie.cpp
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#include<bits/stdc++.h>
using namespace std;
struct trie
{
struct trie *child[26];
bool isend;
trie()
{
for(int i=0;i<26;i++)
{
child[i]=NULL;
}
isend=false;
}
};
trie *root;
void insert(string s)
{
trie *curr=root;
for(int i=0;i<s.size();i++)
{
int k=s[i]-'a';
if(curr->child[k]==NULL)
{
curr->child[k]=new trie();
}
curr=curr->child[k];
}
curr->isend=true;
}
bool search(string s)
{
trie *curr=root;
for(int i=0;i<s.size();i++)
{
int k=s[i]-'a';
if(curr->child[k]==NULL)
{
return false;
}
else{
curr=curr->child[k];
}
}
return curr->isend;
}
void dlt(trie * curr)
{
for(int i=0;i<26;i++)
{
if(curr->child[i])
{
dlt(curr->child[i]);
}
}
delete(curr);
}
void solve()
{
root=new trie();
int n,i,j,k;
cin>>n>>j;
while(n--)
{
string s;
cin>>s;
insert(s);
}
while(j--)
{
string s;
cin>>s;
cout<<search(s)<<endl;
}
dlt(root);
}