Code#91:c program to merge two files

#include<stdio.h>
#include<conio.h>
#include<stdlib.h>

main()
{
   FILE *fs1, *fs2, *ft;

   char ch, file1[20], file2[20], file3[20];

   printf("Enter name of first file ");
   gets(file1);

   printf("Enter name of second file ");
   gets(file2);

   printf("Enter name of file which will store contents of two files ");
   gets(file3);

   fs1 = fopen(file1,"r");
   fs2 = fopen(file2,"r");

   if( fs1 == NULL || fs2 == NULL )
   {
      perror("Error ");
      printf("Press any key to exit...\n");
      getch();
      exit(EXIT_FAILURE);
   }

   ft = fopen(file3,"w");

   if( ft == NULL )
   {
      perror("Error ");
      printf("Press any key to exit...\n");
      exit(EXIT_FAILURE);
   }

   while( ( ch = fgetc(fs1) ) != EOF )
      fputc(ch,ft);

   while( ( ch = fgetc(fs2) ) != EOF )
      fputc(ch,ft);

   printf("Two files were merged into %s file successfully.\n",file3);

   fclose(fs1);
   fclose(fs2);
   fclose(ft);

   getch();
   return 0;
}
output:
Enter name of first file concat.c
Enter name of second file compare.c
Enter name of file which will store contents of two files combine.c
Two files were merged into combine.c file succesfully