Solution
node *addToEnd(node *first,char name[],int roll_no){ node
*new_node=(node *)malloc(sizeof(node)); node
*temp=first;
//initialise new node strcpy(new_node->name,name);
new_node->roll_number=roll_no;
new_node->next=NULL;
//if the list is empty do this. if(first==NULL){
first=new_node; return first; }
//traverse list while(temp->next!=NULL){
temp=temp->next; }
//attach node to end of the list temp->next=new_node;
return first; }