Write a program to create a file called dictionary.dat that contains the information such as Name, Surname, City and Phone number. Write a program to accept a City from user and list details of persons having the given city.

CODING:

#include<stdio.h>

#include<conio.h>

void main()

{

 FILE *f1,*f2,*f3;

 int number,i;

 clrscr();

 printf("Contents Of DATA File\n\n");

 f1=fopen("DATA1","w");

 for(i=1;i<=30;i++)

 {

  scanf("%d",&number);

  if(number == -1)break;

  putw(number,f1);

 }

 fclose(f1);

 f1=fopen("DATA1","r");

 f2=fopen("Odd1","w");

 f3=fopen("Even1","w");

 while((number=getw(f1)) !=EOF)

 {

  if(number %2 == 0)

  putw(number,f3);

  else

   putw(number,f2);

  }

  fclose(f1);

  fclose(f2);

  fclose(f3);

  f2=fopen("Odd1","r");

  f3=fopen("Even1","r");

  printf("\n\nContents of ODD file\n\n");

  while((number=getw(f2)) !=EOF)

  printf("%4d",number);

  printf("\n\nContents of EVEN file\n\n");

  while((number=getw(f3)) !=EOF)

  printf("%4d",number);

  fclose(f2);

  fclose(f3);

  getch();

 }