Program to use putc() and getc() functions

#include<stdio.h> 

main()

{

FILE *f1;

char c;

printf("Data input output");

f1=fopen("Input","w"); /*Open the file Input*/ 

while((c=getchar())!=EOF) /*get a character from key board*/ 

putc(c,f1); /*write a character to input*/ 

fclose(f1); /*close the file input*/ 

printf("\nData output\n");

f1=fopen("INPUT","r"); /*Reopen the file input*/ 

while((c=getc(f1))!=EOF)

printf("%c",c);

fclose(f1);

getch();

}