Link list fully cover example (shanto)

///Link list total example
#include<stdio.h>
#include<stdlib.h> //link list library header
#include<string.h> //String library header

///Structure create
typedef struct Node
{

    char name[15];
    char phn[12];
    char email[20];
    struct Node *next;
} node;

///Global Variable
int count=0;
node *head = NULL;
node *temp = NULL;

/// Insert data at begin of list...
void insertAtbigen()
{
    printf("Enter number of total list :");
    int i,n;
    scanf("%d",&n);
    for(i=0; i<n; i++)
    {
        printf("\nEnter Node information: #%d\n",i+1);
        node *newnode;
        newnode=(node*)malloc(sizeof(node));

        printf("Enter Name:");scanf("%s", &newnode-> name);
        printf("Enter Phone Number:");scanf("%s", &newnode-> phn);
        printf("Enter Email Address:");scanf("%s", &newnode-> email);
        count++;

        newnode->next=NULL;
        if(head==NULL)
        {
            head=newnode;
        }
        else
        {
            newnode->next=head;
            head=newnode;
        }

    }
}

/// insert at end of list....
void insertAtend()
{
    printf("Enter number of total list:");
    int i,n;
    scanf("%d",&n);
    for(i=0; i<n; i++)
    {
        printf("\nEnter Node information: #%d\n",i+1);
        node *newnode;
        newnode=(node*)malloc(sizeof(node));

        printf("Enter Name:");scanf("%s", &newnode-> name);
        printf("Enter Phone Number:");scanf("%s", &newnode-> phn);
        printf("Enter Email Address:");scanf("%s", &newnode-> email);
        count++;

        newnode->next=NULL;
        if(head==NULL)
        {
            head=newnode;
        }
        else
        {
            temp=head;
            while(temp->next!=NULL)
            {
                temp=temp->next;
            }
               temp->next=newnode;
        }
    }
}

///print all data ....
void printList()
{
    temp = head;
    printf("\n---------Show Node list Information:---------\n");
    int c=1;
    while(temp != NULL)
    {
        printf("\nDisplay Node information: #%d\n",c++);
        printf("Name: %s\n",temp-> name);
        printf("Phone: %s\n",temp-> phn);
        printf("Email: %s\n",temp-> email);

        temp= temp-> next;
    }


}

///searching area......

void searchNode()
{
    printf("\n---------Search part:---------\n");
    temp=head;
    printf("Searching by any value for press-1\n");
    printf("Searching by position for press-2\n");

    ///Searching by any value....
    int s;
    scanf("%d",&s);
    if(s==1)
    {
    char src[20];
    printf("Enter search value name or email:");
    scanf("%s",src);
    while(temp!=NULL && ((strcmp(temp->name,src)!=0) && (strcmp(temp->email,src)!=0)))
        {
            temp=temp-> next;
        }

    if(temp==NULL)
        {
            printf("Not Found\n");
        }

    else {  printf("\nSearch Friend information:\n");
            printf("Name: %s\n",temp-> name);
            printf("Phone: %s\n",temp-> phn);
            printf("Email: %s\n",temp-> email);

         }
    }
    ///Searching by position.......
    else if(s==2)
    {
        int position,po=1;
        printf("Enter Position:");
        scanf("%d",&position);
    while(temp!=NULL && position>count && position!=po)
        {
            temp=temp-> next;
            po++;
        }

    if(temp==NULL || position>count)
        {
            printf("Not Founded entered your position\n");
        }

    else {  printf("\nFounded your Position #%d no information:\n",position);
            printf("Name: %s\n",temp-> name);
            printf("Phone: %s\n",temp-> phn);
            printf("Email: %s\n",temp-> email);

         }
    }
}

///Delete or Update Area...
void deleteeNode()
{
    printf("\n---------Delete or Update part:---------\n");
    node *pre=NULL;
     temp=head;
    printf("Searching by any value for press-1\n");
    printf("Searching by position for press-2\n");

    ///Searching & deleted by any value....
    int s;
    scanf("%d",&s);
    if(s==1)
    {
    char src[20];
    printf("Enter search value name or email:");
    scanf("%s",src);
    while(temp!=NULL && ((strcmp(temp->name,src)!=0) && (strcmp(temp->email,src)!=0)&&(strcmp(temp->phn,src)!=0)))
        {
            pre=temp;
            temp=temp-> next;
        }

    if(temp==NULL)
        {
            printf("Not Found\n");
        }

    else {  printf("\nSearch Friend information:\n");
            printf("Name: %s\n",temp-> name);
            printf("Phone: %s\n",temp-> phn);
            printf("Email: %s\n",temp-> email);

            printf("Enter 1 for delete or Enter 2 for Edit..\n");
          int d;
          scanf("%d",&d);
          if(2==d)
          {
           printf("Enter update Name:");scanf("%s", &temp-> name);
           printf("Enter update Phone Number:");scanf("%s", &temp-> phn);
           printf("Enter update Email Address:");scanf("%s", &temp-> email);
           printf("Update Successfully\n\n");
          }
          else if(d==1)
          {
            if(temp==head)
            {
              head=temp->next;
              printf("\nInformation of %s has deleted successfully \n",temp->name);
              free(temp);
              --count;
            }
            pre->next=temp->next;
            printf("\nInformation of %s has deleted successfully \n",temp->name);
            free(temp);
            --count;
          }

         }
    }
    ///Searching & deleted by position....
    else if(s==2)
    {
        int position,po=1;
        printf("Enter Position:");
        scanf("%d",&position);
    while(temp!=NULL && position>count && position==po)
        {
            pre=temp;
            temp=temp-> next;
            po++;
        }

    if(temp==NULL || position>count)
        {
            printf("Not Founded entered your position\n");
        }

    else {  printf("\nFounded your Position #%d no information:\n",position);
            printf("Name: %s\n",temp-> name);
            printf("Phone: %s\n",temp-> phn);
            printf("Email: %s\n",temp-> email);

          printf("Enter 1 for delete or Enter 2 for Edit..\n");
          int d;
          scanf("%d",&d);
          if(2==d)
          {
           printf("Enter update Name:");scanf("%s", &temp-> name);
           printf("Enter update Phone Number:");scanf("%s", &temp-> phn);
           printf("Enter update Email Address:");scanf("%s", &temp-> email);
           printf("Update Successfully\n\n");
          }
          else if(d==1)
          {
            if(temp==head)
            {
              head=temp->next;
              printf("\nInformation of %s has deleted successfully \n",temp->name);
              free(temp);
              --count;
            }
            pre->next=temp->next;
            printf("\nInformation of %s has deleted successfully \n",temp->name);
            free(temp);
            --count;
          }

         }
}
}
///Main Body Section......
int main()
{
    for(;;)
    {
    int k;
    printf("\n1.Create list At Begin\n");
    printf("2.Create list At End\n");
    printf("3.Searching\n");
    printf("4.delete or Update\n");
    printf("5.Display list\n");
    printf("6.Count list\n");
    printf("7.Exit\n");

    scanf("%d",&k);
         if(k==1){insertAtbigen();}
    else if(k==2){insertAtend();}
    else if(k==3){searchNode();}
    else if(k==4){deleteeNode();}
    else if(k==5){printList();}
    else if(k==6){printf("Toatl List of Node ----- %d\n",count);}
    else { break;}
    }
    return 0;


}