Write Address Book in C linked list

Write Address Book in C linked list

/* Implement an address book. The address book can be used to store information of 1000 people. Each person's information includes: name, gender, age, phone number, and address. add Contact Information 2. delete the specified contact information. 3. search for the specified contact information. 4. modify the specified contact information. show all contacts 6. clear all contacts */# include <stdio. h> # include "phone_book.h" # include <string. h> # include <assert. h> typedef struct phone_book {char name [10]; char sex [5]; char addr [20]; int year; int phone_num; struct phone_book * pNext;} Book, * pBook; pBook add_linkman (pBook head) {int I = 0; char name [10]; char Sex [5]; char addr [20]; int year; long phone_num; pBook pBase = head; assert (head); flag: printf ("How many contacts do you want to add: "); scanf (" % d ", & I); if (I <= 0) {printf (" input quantity error! \ N "); goto flag;} if (head-> pNext = NULL) {while (I --) {pBook pNew = (pBook) malloc (sizeof (Book )); assert (pNew); printf ("Enter the contact information (name, gender, address, age, phone number) \ n"); scanf ("% s", name ); scanf ("% s", sex); scanf ("% s", addr); strcpy (pNew-> name, name); strcpy (pNew-> sex, sex ); strcpy (pNew-> addr, addr); scanf ("% d", & pNew-> year); scanf ("% d", & pNew-> phone_num ); pBase-> pNext = pNew; pNew-> pNext = NULL; pBase = pNew;} Else {while (pBase-> pNext! = NULL) {pBase = pBase-> pNext;} while (I --) {pBook pNew = (pBook) malloc (sizeof (Book); assert (pNew ); printf ("Enter the contact information (name, gender, address, age, phone number) \ n"); scanf ("% s", name ); scanf ("% s", sex); scanf ("% s", addr); strcpy (pNew-> name, name); strcpy (pNew-> sex, sex ); strcpy (pNew-> addr, addr); scanf ("% d", & pNew-> year); scanf ("% d", & pNew-> phone_num ); pBase-> pNext = pNew; pNew-> pNext = NULL ;}} return head;} pBook re Move_linkman (pBook head) {pBook link_man = head; char name [10]; if (! Head) {printf ("no contact, cannot be deleted! \ N "); return NULL;} printf (" which contact do you want to delete? "); Scanf (" % s ", name); while (link_man-> pNext! = NULL) {if (strcmp (link_man-> pNext-> name, name) = 0) {if (link_man-> pNext = NULL) {free (link_man-> pNext); link_man-> pNext = NULL; printf ("deletion completed! \ N ") ;}else {pBook ptmp = NULL; ptmp = link_man-> pNext; link_man-> pNext = link_man-> pNext; free (ptmp ); printf ("deleted! \ N ") ;}return head ;}else {link_man = link_man-> pNext ;}} printf (" this contact is not found! \ N "); return head;} void traver_linkman (pBook head) {pBook link_man = head; if (head-> pNext = NULL) {printf (" the phone book is empty! \ N ");} while (link_man-> pNext! = NULL) {printf ("% s \ n", link_man-> pNext-> name); printf ("% s \ n", link_man-> pNext-> sex ); printf ("% s \ n", link_man-> pNext-> addr); printf ("% d \ n", link_man-> pNext-> year ); printf ("% ld \ n", link_man-> pNext-> phone_num ); printf ("********************************** \ n "); link_man = link_man-> pNext;} void empty_linkman (pBook head) {pBook ptmp = NULL; pBook link_man = head; if (head-> pNext = NULL) {printf ("Phone Book Empty! No need to clear it! (Defaults 0 rows) \ n ");} while (link_man-> pNext! = NULL) {if (link_man-> pNext = NULL) {free (link_man-> pNext); link_man-> pNext = NULL ;} else {ptmp = link_man-> pNext; link_man-> pNext = link_man-> pNext; free (ptmp) ;}} printf ("cleared! \ N ");} pBook amend_linkman (pBook head) {char name [10]; char sex [5]; char addr [20]; pBook link_man = head; if (! Head) {printf ("no contact, cannot be modified! \ N "); return NULL;} printf (" which contact Do You Want To modify? "); Scanf (" % s ", name); while (link_man-> pNext! = NULL) {if (strcmp (link_man-> pNext-> name, name) = 0) {printf ("Enter the contact information (name, gender, address, age, phone number) \ n"); scanf ("% s", name ); scanf ("% s", sex); scanf ("% s", addr); strcpy (link_man-> pNext-> name, name ); strcpy (link_man-> pNext-> sex, sex); strcpy (link_man-> pNext-> addr, addr); scanf ("% d ", & link_man-> pNext-> year); scanf ("% d", & link_man-> pNext-> phone_num); return head;} else link_man = link_man-> pNext ;} return h Ead;} void search_linkman (pBook head) {char name [10]; pBook link_man = head; if (! Head) {printf ("no contact, search failed! \ N "); return NULL;} printf (" which contact are you looking? "); Scanf (" % s ", name); while (link_man-> pNext! = NULL) {if (strcmp (link_man-> pNext-> name, name) = 0) {printf ("% s \ n ", link_man-> pNext-> name); printf ("% s \ n", link_man-> pNext-> sex); printf ("% s \ n ", link_man-> pNext-> addr); printf ("% d \ n", link_man-> pNext-> year); printf ("% ld \ n ", link_man-> pNext-> phone_num ); printf ("********************************** \ n "); return 0;} else link_man = link_man-> pNext;} printf ("not found! \ N ") ;}void start (pBook * phead) {int I =-1; assert (phead); while (1) {printf (" welcome to the phone book system! Select your operation: \ n "); printf ("************************************* * ******* \ n "" * 1. add Contact Information 2. delete the specified contact information * \ n "" * 3. search for the specified contact information. 4. modify the specified contact information * \ n "" * 5. show all contacts 6. clear all contacts * \ n "" * 0. end the system! ---- ---- * \ N ""******************************* * ************* \ n "); scanf ("% d", & I); switch (I) {case 0: printf ("***** Thank you for using this system! * *** \ N "); exit (0); case 1: * phead = add_linkman (phead); break; case 2: * phead = remove_linkman (phead ); break; case 3: search_linkman (phead); break; case 4: * phead = amend_linkman (phead); break; case 5: traver_linkman (phead); break; case 6: empty_linkman (phead); break; default: printf ("Incorrect choice! Please reselect \ n "); break ;}}# include <stdio. h> # include "phone_book.h" int main () {pBook phead = NULL; start (& phead); return 0 ;}