What steps would i take to complete insertStudents and deleteStudents functions?
I know i have to add a dummy node. Any hints at a direction would be helpful.
Code:/* Complete insertStudents and deleteStudents functions in the skeleton program. The output of the program should be like: sid=001,name=John sid=002,name=Joan sid=003,name=Jack sid=001,name=John sid=003,name=Jack */ #include "ex6.h" #include <stdio.h> #include <string.h> #include <stdlib.h> int main(){ Snodeptr students; //Create the dummy node makenullStudents(&students); struct studentType student1,student2,student3; strcpy(student1.sid,"001"); strcpy(student1.sname,"John"); strcpy(student2.sid,"002"); strcpy(student2.sname,"Joan"); strcpy(student3.sid,"003"); strcpy(student3.sname,"Jack"); insertStudents(student1,students); insertStudents(student2,students); insertStudents(student3,students); printStudents(students); deleteStudents(student2,students); printStudents(students); return 0; } Snodeptr sAlloc(void) { return (Snodeptr) malloc(sizeof(struct snode)); } void makenullStudents(Snodeptr *students) { (*students)=sAlloc(); } void insertStudents(struct studentType x, Snodeptr students) { } void deleteStudents(struct studentType x, Snodeptr students) { } void printStudents(Snodeptr students) { int count=0; Snodeptr p=students; char ch; while((p->next)!=NULL){ printf("sid=%s,name=%s\n",p->next->student.sid,p->next->student.sname); p=p->next; } }
