C Language: Write a function create a one-way dynamic linked list with 3 student data

Write a function to create a one -way dynamic linked list with 3 student data.

Solution: Program:

#include <stdio.h>

#include <stdlib.h>

#define LEN sizeof (struct Student)

struct Student

{

Long num;

Float score;

struct Student *next;

};

int n;

struct Student *creat (void)//define function returns a pointer to a linked header

{

struct Student *head;

struct Student *p1, *p2;

n = 0;

P1 = P2 = (struct Student *) malloc (LEN);

scanf ("%ld,%f", &p1->num, &p1->score);

head = NULL;

while (p1->num!=0)

{

n = n + 1;

if (n = = 1)

{

head = p1;

}

Else

{

P2->next = p1;

}

P2 = p1;

P1 = (struct Student *) malloc (LEN);

scanf ("%ld,%f", &p1->num, &p1->score);

}

p2->next=null;

return (head);

}

int main ()

{

struct Student *pt;

PT = creat ();//function returns the address of the 1th node of the list.

printf ("\nnum=%ld\nscore=%5.1f\n", Pt->num, Pt->score);//Output The member value of the 1th node

return 0;

}

Results:

1001,67

1003,89

1005,99

0,0

num=1001

Score= 67.0

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C Language: Write a function create a one-way dynamic linked list with 3 student data