Parallel file copy

#include<stdio.h>
#include<unistd.h>
#include<sys/types.h>
#include<string.h>
main()
{
    char files[20];
    char destn[20];
    int i=0;
    printf("Parent %d\n",getpid());
    for(i=0;i<3;i++)
    {
        gets(files);
        if(fork()==0)
        {
            sprintf(destn,"dir/%s",files);
            FILE *rp=fopen(files,"r");
            FILE *dp=fopen(destn,"w");
            char ch='1';
            printf("Child %d file:%s\n",getpid(),files);
            while(ch>0)
            {
                ch=fgetc(rp);
                fputc(ch,dp);
            }
            fputc(EOF,dp);
            fclose(rp);
            fclose(dp);
            _exit(0);
        }
    }
}