C++ Programming Tutorial

 
 
 

Data File Structure Programs

Array

Insert, edit, delete, append, display, Srch. Insert, delete, merge, delete multiple occurrences Arrays as a Stack in graphics

Stack

Stack operations using array Stack using static memory allocation Stack using dynamic memory allocation Double ended link list as a stack Lnked list as a Stack Infix expr. to Postfix expr. Postfix expr. into an Infix expr. Arrays as a Stack in graphics Stack as an Arithmetic expr. Evaluater Graphical Rep. of Stack Stack to traverse - inodr, postodr, preodr

Queue

Queue using static memory allocation Queue using dynamic memory allocation Circular queue Linked list as a Queue Double Ended linked list as a Queue Graphical Rep. of Queue Arrays as a Linear Queue Array as a Circular Queue Arrays as a Linear Queue ( in graphics ) Arrays as a Circular Queue ( in graphics )

Linked List

Singly link list Circular linked list Doubly link list Linked list as a Queue Linked list as a Stack Double Ended linked list as a Queue Double Ended linked list as a Stack Infix to Postfix - Linked List as Stack Circular doubly link list Single Ended Linked List - Sorting in both odr Hashing - double ended Linked List Sort of link list

Tree

Linked List as a Binary Srch. Tree Set Class using Binary Srch. Tree Maximum depth of Binary Srch. Tree Minimum Spaning Tree Prims algo - minimum spanning tree Traverse binary tree - inodr, preodr, post Find number in binary Srch. tree display levell

Sorting

Bubble Sort Selection Sort Insertion Sort Radix Sort Merge Sort Quick Sort Heap Sort Linear Sort Shell Sort Topological Sort

Searching

Linear Srch. or Sequential Srch. Binary Search Breadth First Search Traversal Depth First Search Traversal Shortest Path-Given Source-Destination-Dijkstras

Hashing

Simple implementation of Hashing Hashing using double-ended Linked List Hashing using Mid-Square Method Example of Hashing n term of the fibonacci series using recursion

Recursion

Factorial of the given number using recursion Mystery of Towers of Hanoi using recursion
 
 

Image

#include <iostream.h>
#include <conio.h>
#define MAX_NODE 50

struct node{
    int vertex;
    node *next;
};

node *adj[MAX_NODE]; //For storing Adjacency list of nodes.
int totNodes; //No. of Nodes in Graph.

////////////Queue Operation\\\\\\\\\\\\\\\\\\\\\\\\    int queue[MAX_NODE],f=-1,r=-1;

void q_insert(int item){
    r = r+1;
    queue[r]=item;
    if(f==-1)
       f=0;
}

int q_delete(){
    int delitem=queue[f];
    if(f==r)
       f=r=-1;
    else
       f=f+1;
    return(delitem);
}

int is_q_empty(){
    if(f==-1)
      return(1);
    else
      return(0);
}
////////////Queue Operation\\\\\\\\\\\\\\\\\\\\\\\\    
void createGraph(){
    node *newl,*last;
    int neighbours,neighbour_value;
    cout<<\"\\n\\n---Graph Creation---\\n\\n\";
    cout<<\"Enter total nodes in graph : \";
    cin>>totNodes;
    for(int i=1;i<=totNodes;i++){
        last=NULL;
        cout<<\"\\nEnter no. of nodes in the adjacency list of node \"<<i<<\"\\n\";
        cout<<\"--> That is Total Neighbours of \"<<i<<\" : \";
        cin>>neighbours;
        for(int j=1;j<=neighbours;j++){
            cout<<\"Enter neighbour #\"<<j<<\" : \";
            cin>>neighbour_value;
            newl=new node;
            newl->vertex=neighbour_value;
            newl->next=NULL;
            if(adj[i]==NULL)
                adj[i]=last=newl;
            else{
                last->next = newl;
                last = newl;
            }
        }
    }
}


void BFS_traversal(){
    node *tmp;
    int N,v,start_node,status[MAX_NODE];//status arr for maintaing status.
    const int ready=1,wait=2,processed=3; //status of node.

    cout<<\"Enter starting node : \";
    cin>>start_node;

    //step 1 : Initialize all nodes to ready state.
    for(int i=1;i<=totNodes;i++)
        status[i]=ready;

    //step 2 : put the start node in queue and change status.
    q_insert(start_node); //Put starting node into queue.
    status[start_node]=wait; //change it status to wait state.

    //step 3 : Repeat until queue is empty.
    while(is_q_empty()!=1){

        //step 4 : Remove the front node N of queue.
        //process N and change the status of N to
        //be processed state.
        N = q_delete(); //remove front node of queue.
        status[N]=processed; //status of N to processed.
        cout<<\"   \"<<N; //displaying processed node.

        //step 5 : Add to rear of queue all the neighbours of N,
        //that are in ready state and change their status to
        //wait state.
        tmp = adj[N];  //for status updation.
        while(tmp!=NULL){
            v = tmp->vertex;
            if(status[v]==ready){//check status of N\'s neighbour.
                q_insert(v); //insert N\'s neighbour who are in ready state.
                status[v]=wait; //and make their status to wait state.
            }
            tmp=tmp->next;
        }
    }
}

void main(){
    clrscr();
    cout<<\"*****Breadth First Search Traversal*****\\n\";
    createGraph();
    cout<<\"\\n===BFS traversal is as under===\\n\";
    BFS_traversal();
    getch();
}

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