WAP to implement multi link list of student record.

#include<stdio.h>
#include<conio.h>
struct marks
{
int subno,mrk;
struct marks *next;
}*mtemp,*mtemp1;
struct stud
{
int rno,tot;
float per;
struct marks *link;
struct stud *next;
}*first,*temp,*temp1;
void display()
{
if(first==NULL)
{
printf("No records");
return;
}
temp=first;
while(temp!=NULL)
{
printf("\nRollno : %d",temp->rno);
mtemp=temp->link;
while(mtemp!=NULL)
{
printf("\nSubno : %d\tmarks: %d",mtemp->subno,mtemp->mrk);
mtemp=mtemp->next;
}
printf("\nTotal : %d\tPercentage: %f%",temp->tot,temp->per);
temp=temp->next;
}

}
void main()
{
char mch,ch;
int cnt;
clrscr();
do
{
temp=(struct stud*)malloc(sizeof(struct stud));
printf("Enter rollno: ");
scanf("%d",&temp->rno);
temp->next=NULL;
temp->link=NULL;
cnt=0;
do
{
mtemp=(struct marks*)malloc(sizeof(struct marks));
printf("Enter subno: ");
scanf("%d",&mtemp->subno);
printf("Enter marks: ");
scanf("%d",&mtemp->mrk);
if(temp->link==NULL)
{
temp->link=mtemp;
temp->tot=mtemp->mrk;
}
else
{
mtemp1->next=mtemp;
temp->tot=temp->tot+mtemp->mrk;
}
mtemp->next=NULL;
mtemp1=mtemp;
cnt++;
fflush(stdin);
printf("\nDo you want Enter more sub marks: ");
scanf("%c",&mch);
}while(mch=='y' || mch=='Y');
temp->per=temp->tot/cnt;
if(first==NULL)
first=temp;
else
temp1->next=temp;
temp->next=NULL;
temp1=temp;
fflush(stdin);
printf("\nDo you want Enter more students: ");
scanf("%c",&ch);
}while(ch=='y' || ch=='Y');
display();
getch();
}