Program to create a sequential file containing integer numbers. Read these numbers and write all odd numbers into a file ODD, and even numbers into a file EVEN. Display the contents from each.
#include<stdio.h>
main()
{
FILE *f1,*f2,*f3;
int n;
clrscr();
f1=fopen("NUM.DAT","w");
printf(" Enter series of integers\n");
do
{
scanf("%d",&n);
putw(n,f1);
}
while(n!=0);
fclose(f1);
f1=fopen("NUM.DAT","r");
f2=fopen("EVEN.DAT","w");
f3=fopen("ODD.DAT","w");
while((n=getw(f1))!=EOF)
{
if(n%2==0)
putw(n,f2);
else
putw(n,f3);
}
fclose(f1);
fclose(f2);
fclose(f3);
printf("\nContents of NUM.DAT");
f1=fopen("NUM.DAT","r");
while((n=getw(f1))!=EOF)
printf("%5d",n);
fclose(f1);
printf("\nContents of EVEN.DAT");
f2=fopen("EVEN.DAT","r");
while((n=getw(f2))!=EOF)
printf("%5d",n);
fclose(f2);
printf("\nContents of ODD.DAT");
f3=fopen("ODD.DAT","r");
while((n=getw(f3))!=EOF)
printf("%5d",n);
fclose(f3);
getch();
}