#include <iostream>
using namespace std;
struct node{
char key[20];
char value[20];
node *left,*right;
};
class BSTDictionary{
public:
node *root;
void create();
void display(node *);
void insert(node *root,node *temp);
int search(node *,char []);
node *del(node *, char []);
node *min(node *);
};
int main(){
int user_choice;
BSTDictionary bstdit;
bstdit.root=NULL;
do{
cout<<"\n\t\tMENU\n\t\t1.Create\n\t\t2.Display\n\t\t3.Search\n\t\t4.Delete\n";
cout<<"\t\tEnter Your Choice Please......\t\t";
cin>>user_choice;
switch(user_choice){
case 1: bstdit.create();
break;
case 2: if(bstdit.root == NULL){
cout<<"\n\t\t No keywords :(";
}
else{
bstdit.display(bstdit.root);
}
break;
case 3: if(bstdit.root == NULL){
cout<<"\n\t\t Dictionary is Empty... :(";
}
else{
char k[20];
cout<<"\n\t\t Enter the keyword that you want to search...\t\t";
cin>>k;
if(bstdit.search(bstdit.root,k) == 1){
cout<<"\n\t\tKeyword Found";
}
else{
cout<<"\n\t\tKeyword not Found";
}
}
break;
case 4: if(bstdit.root == NULL){
cout<<"\n\t\t Dictionary is Empty :(";
}
else{
char k[20];
cout<<"\n\t\t Enter keyword you want to delete";
cin>>k;
if(bstdit.root == NULL){
cout<<"\n\t\t No keyword";
}
else{
bstdit.root=bstdit.del(bstdit.root,k);
}
}
}
}
while(user_choice <= 4){
return 0;
};
}
void BSTDictionary :: create(){
node *temp;
int input;
do{
temp=new node;
cout<<"\n\t\tEnter the keyword:\t\t";
cin>> temp -> key;
cout<<"\n\t\tEnter the meaning:\t\t";
cin>>temp -> value;
temp -> left=NULL;
temp -> right=NULL;
if(root == NULL){
root=temp;
}
else{
insert(root,temp);
}
cout<<"\n\t\t Do you want to add nodes(Yes=1/No=0)";
cin>>input;
}while(input == 1);
}
void BSTDictionary :: insert(node *root,node *temp){
if(strcmp(temp -> key,root -> key) < 0){
if(root -> left == NULL){
root -> left = temp;
}
else{
insert(root -> left,temp);
}
}
else{
if(root -> right == NULL){
root -> right = temp;
}
else{
insert(root -> right,temp);
}
}
}
void display(node *root){
if(root != NULL){
display(root -> left);
cout<<"\n\t\tKeyword:"<<root -> key;
cout<<"\t\tMeaning:"<<root -> value;
display(root -> right);
}
}
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