Question

C Program: How do I create two linked lists of characters from user input and concatenate the two linked lists?

Answer 1

`Hey,

Note: Brother in case of any queries, just comment in box I would be very happy to assist all your queries

#include <stdio.h>
#include <stdlib.h>

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

void display(struct node *head)
{
if(head == NULL)
{
printf("NULL\n");
}
else
{
printf("%d ", head -> data);
display(head->next);
}
}

void concatenate(struct node *a,struct node *b)
{
if( a != NULL && b!= NULL )
{
if (a->next == NULL)
a->next = b;
else
concatenate(a->next,b);
}
else
{
printf("Either a or b is NULL\n");
}
}

int main()
{
struct node *prev,*a, *b, *p;
int n,i;
printf ("number of elements in a:");
scanf("%d",&n);
a=NULL;
printf("Enter elements in a: ");
for(i=0;i<n;i++)
{
p=malloc(sizeof(struct node));
scanf("%d",&p->data);
p->next=NULL;
if(a==NULL)
a=p;
else
prev->next=p;
prev=p;
}
printf ("number of elements in b:");
scanf("%d",&n);

printf("Enter elements in b: ");
b=NULL;
for(i=0;i<n;i++)
{
p=malloc(sizeof(struct node));
scanf("%d",&p->data);
p->next=NULL;
if(b==NULL)
b=p;
else
prev->next=p;
prev=p;
}
concatenate(a,b);
display(a);
return 0;
}

​​​​​​​

ㅃ main.c-Code:Blocks 13.12 Eile Edit iew Search Project Build Debug Fortran woSmith Tools ToolsPlugins DoxyBlocks Settings Help Start here F: number of elements in a:4 nter elements in a: 1 2 3 4 umber of elements in b:5 nter elements in b: 6 5 4 3 2 2 3 4 6 5 4 3 2 NULL rocess returned (exe) execution time : 12.863 s ress any key to continue 10 12 13 14 15 16 17 18 19 20 21 23 24 Logs & others DoxyBlocds Fortran info X Code: mingu32-g+t.exe Proaegg terminated with status 0 (0 minuto(#), 1 sooond(s)) o erroris). varningts) (o minutels. 1 second (s)) Chacking for existence:checmain.axe Executing: G:\CodeBlocks/cb console-runner.exe "F:\check\main.exe. <in F:\check Windows (CR+LF) WINDOWS-1252 Line 18, Column 20 Insert Read/Write default ENG 9:45 AM US 04/28/19 O Type here to search

Kindly revert for any queries

Thanks.