queue implementation using linked list - Data Structures Source Code in C++

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Home » C++ Home » Data Structures Home » queue implementation using linked list

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Title	queue implementation using linked list
Author	Hareesh Arumughom
Author Email	hari_a_s [at] hotmail.com
Description
Category	C++ » Data Structures
Hits	384220
Code	Select and Copy the Code
#include <iostream.h> #include <conio.h> #include <stdlib.h> struct node { char name[20]; int age; float height; node nxt; }; node start_ptr=NULL; int main() { void push (); void pop(); char ch; clrscr(); cout<<"Queue "; cout<<"-----"; do { cout<<" Select an operation"; cout<<" u->push "; cout<<"o->pop "; cout<<"e->exit "; cin>>ch; switch(ch) { case 'u': push(); break; case 'o': pop(); break; case 'e': exit(0); } }while(ch!='e'); return 0; } void pop() { node temp1,temp2; if(start_ptr==NULL) cout<<"The list is empty "; else { temp1=start_ptr; temp2=temp1; while(temp1->nxt!=NULL) { temp2=temp1; temp1=temp1->nxt; } if(temp1==temp2) { cout<<temp1->name<<","; cout<<temp1->age<<", "; cout<<temp1->height; start_ptr=NULL; } else { cout<<temp1->name<<", "; cout<<temp1->age<<", "; cout<<temp1->height; temp2->nxt=NULL; delete temp1; } } } void push () { node *temp; temp = new node; cout << "Please enter the name of the person: "; cin >> temp->name; cout << "Please enter the age of the person: "; cin >> temp->age; cout << "Please enter the height of the person: "; cin >> temp->height; if (start_ptr == NULL) { temp->nxt=NULL; start_ptr = temp; } else { temp->nxt=start_ptr; start_ptr=temp; } }

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