typedef unsigned int size_t;




















 




 





 

 





 

















 



























 




typedef void *__gnuc_va_list;



 



























 

















 











 





 


 



 




 



 









 





 

 



 

 







 




 





 

 





 









 
typedef unsigned char __u_char;
typedef unsigned short __u_short;
typedef unsigned int __u_int;
typedef unsigned long __u_long;

typedef struct
  {
    long int __val[2];
  } __quad_t;
typedef struct
  {
    __u_long __val[2];
  } __u_quad_t;

typedef signed char __int8_t;
typedef unsigned char __uint8_t;
typedef signed short int __int16_t;
typedef unsigned short int __uint16_t;
typedef signed int __int32_t;
typedef unsigned int __uint32_t;

typedef __quad_t *__qaddr_t;

typedef __u_quad_t __dev_t;		 
typedef __u_int __uid_t;		 
typedef __u_int __gid_t;		 
typedef __u_long __ino_t;		 
typedef __u_int __mode_t;		 
typedef __u_int __nlink_t; 		 
typedef long int __off_t;		 
typedef __quad_t __loff_t;		 
typedef int __pid_t;			 
typedef int __ssize_t;			 
typedef __u_long __rlim_t;		 
typedef __u_quad_t __rlim64_t;		 
typedef __u_int __id_t;			 

typedef struct
  {
    int __val[2];
  } __fsid_t;				 

 
typedef int __daddr_t;			 
typedef char *__caddr_t;
typedef long int __time_t;
typedef long int __swblk_t;		 

typedef long int __clock_t;

 
typedef unsigned long int __fd_mask;

 


 




 
typedef struct
  {
     


    __fd_mask __fds_bits[1024  / (8 * sizeof (__fd_mask)) ];


  } __fd_set;


typedef int __key_t;

 
typedef unsigned short int __ipc_pid_t;


 

 
typedef long int __blkcnt_t;
typedef __quad_t __blkcnt64_t;

 
typedef __u_long __fsblkcnt_t;
typedef __u_quad_t __fsblkcnt64_t;

 
typedef __u_long __fsfilcnt_t;
typedef __u_quad_t __fsfilcnt64_t;

 
typedef __u_long __ino64_t;

 
typedef __loff_t __off64_t;

 
typedef long int __t_scalar_t;
typedef unsigned long int __t_uscalar_t;

 
typedef int __intptr_t;


 










 
typedef struct _IO_FILE FILE;








 




























 





 








 





 


 



 




 



 









 





 

 



 

 







 




 





























 
















typedef long int wchar_t;
























typedef unsigned int  wint_t;




 

 





 


























typedef int _G_int16_t  ;
typedef int _G_int32_t  ;
typedef unsigned int _G_uint16_t  ;
typedef unsigned int _G_uint32_t  ;




 


















 




 




























 

 



























 



 


































 






















 
























 



















struct _IO_jump_t;  struct _IO_FILE;

 

typedef void _IO_lock_t;



 

struct _IO_marker {
  struct _IO_marker *_next;
  struct _IO_FILE *_sbuf;
   

   
  int _pos;

};

struct _IO_FILE {
  int _flags;		 


   
   
  char* _IO_read_ptr;	 
  char* _IO_read_end;	 
  char* _IO_read_base;	 
  char* _IO_write_base;	 
  char* _IO_write_ptr;	 
  char* _IO_write_end;	 
  char* _IO_buf_base;	 
  char* _IO_buf_end;	 
   
  char *_IO_save_base;  
  char *_IO_backup_base;   
  char *_IO_save_end;  

  struct _IO_marker *_markers;

  struct _IO_FILE *_chain;

  int _fileno;
  int _blksize;
  __off_t   _old_offset;  


   
  unsigned short _cur_column;
  signed char _vtable_offset;
  char _shortbuf[1];

   

  _IO_lock_t *_lock;


  __off64_t   _offset;
   
  int _unused2[16];

};


typedef struct _IO_FILE _IO_FILE;


struct _IO_FILE_plus;
extern struct _IO_FILE_plus _IO_2_1_stdin_;
extern struct _IO_FILE_plus _IO_2_1_stdout_;
extern struct _IO_FILE_plus _IO_2_1_stderr_;







 

 

typedef __ssize_t __io_read_fn  (void *  __cookie, char *__buf,
				       size_t __nbytes)  ;

 





typedef __ssize_t __io_write_fn  (void *  __cookie, const  char *__buf,
				      size_t __n)  ;

 





typedef int __io_seek_fn  (void *  __cookie, __off_t   __pos, int __w)  ;

 
typedef int __io_close_fn  (void *  __cookie)  ;







extern int __underflow  (_IO_FILE *)  ;
extern int __uflow  (_IO_FILE *)  ;
extern int __overflow  (_IO_FILE *, int)  ;








extern int _IO_getc  (_IO_FILE *__fp)  ;
extern int _IO_putc  (int __c, _IO_FILE *__fp)  ;
extern int _IO_feof  (_IO_FILE *__fp)  ;
extern int _IO_ferror  (_IO_FILE *__fp)  ;

extern int _IO_peekc_locked  (_IO_FILE *__fp)  ;

 


extern void _IO_flockfile  (_IO_FILE *)  ;
extern void _IO_funlockfile  (_IO_FILE *)  ;
extern int _IO_ftrylockfile  (_IO_FILE *)  ;










extern int _IO_vfscanf  (_IO_FILE *  , const char *  ,
			     __gnuc_va_list , int *  )  ;
extern int _IO_vfprintf  (_IO_FILE *  , const char *  ,
			      __gnuc_va_list )  ;
extern __ssize_t   _IO_padn  (_IO_FILE *, int, __ssize_t  )  ;
extern size_t   _IO_sgetn  (_IO_FILE *, void *, size_t  )  ;

extern __off64_t   _IO_seekoff  (_IO_FILE *, __off64_t  , int, int)  ;
extern __off64_t   _IO_seekpos  (_IO_FILE *, __off64_t  , int)  ;

extern void _IO_free_backup_area  (_IO_FILE *)  ;






 

typedef __off_t  fpos_t;



 





 





 




 







 




 








 





































 
extern FILE *stdin;		 
extern FILE *stdout;		 
extern FILE *stderr;		 
 





 
extern int remove  (const  char *__filename)  ;
 
extern int rename  (const  char *__old, const  char *__new)  ;


 

extern FILE *tmpfile  (void)  ;


 
extern char *tmpnam  (char *__s)  ;


 

extern char *tmpnam_r  (char *__s)  ;




 






extern char *tempnam  (const  char *__dir, const  char *__pfx)  ;



 
extern int fclose  (FILE *__stream)  ;
 
extern int fflush  (FILE *__stream)  ;


 
extern int fflush_unlocked  (FILE *__stream)  ;






 
extern FILE *fopen  (const  char *   __filename,
			 const  char *   __modes)  ;
 
extern FILE *freopen  (const  char *   __filename,
			   const  char *   __modes,
			   FILE *   __stream)  ;




 
extern FILE *fdopen  (int __fd, const  char *__modes)  ;





 

extern void setbuf  (FILE *   __stream, char *   __buf)  ;
 


extern int setvbuf  (FILE *   __stream, char *   __buf,
			 int __modes, size_t __n)  ;


 

extern void setbuffer  (FILE *   __stream, char *   __buf,
			    size_t __size)  ;

 
extern void setlinebuf  (FILE *__stream)  ;



 
extern int fprintf  (FILE *   __stream,
			 const  char *   __format, ...)  ;
 
extern int printf  (const  char *   __format, ...)  ;
 
extern int sprintf  (char *   __s,
			 const  char *   __format, ...)  ;

 
extern int vfprintf  (FILE *   __s,
			  const  char *   __format,
			  __gnuc_va_list  __arg)  ;
 
extern int vprintf  (const  char *   __format,
			 __gnuc_va_list  __arg)  ;
 
extern int vsprintf  (char *   __s,
			  const  char *   __format,
			  __gnuc_va_list  __arg)  ;


 
extern int snprintf  (char *   __s, size_t __maxlen,
			  const  char *   __format, ...)  
      ;

extern int __vsnprintf  (char *   __s, size_t __maxlen,
			     const  char *   __format,
			     __gnuc_va_list  __arg)  
      ;
extern int vsnprintf  (char *   __s, size_t __maxlen,
			   const  char *   __format,
			   __gnuc_va_list  __arg)  
      ;





 
extern int fscanf  (FILE *   __stream,
			const  char *   __format, ...)  ;
 
extern int scanf  (const  char *   __format, ...)  ;
 
extern int sscanf  (const  char *   __s,
			const  char *   __format, ...)  ;




 
extern int fgetc  (FILE *__stream)  ;
extern int getc  (FILE *__stream)  ;

 
extern int getchar  (void)  ;

 




 
extern int getc_unlocked  (FILE *__stream)  ;
extern int getchar_unlocked  (void)  ;



 
extern int fgetc_unlocked  (FILE *__stream)  ;



 
extern int fputc  (int __c, FILE *__stream)  ;
extern int putc  (int __c, FILE *__stream)  ;

 
extern int putchar  (int __c)  ;

 




 
extern int fputc_unlocked  (int __c, FILE *__stream)  ;



 
extern int putc_unlocked  (int __c, FILE *__stream)  ;
extern int putchar_unlocked  (int __c)  ;




 
extern int getw  (FILE *__stream)  ;

 
extern int putw  (int __w, FILE *__stream)  ;



 
extern char *fgets  (char *   __s, int __n,
			 FILE *   __stream)  ;



 

extern char *gets  (char *__s)  ;





 
extern int fputs  (const  char *   __s,
		       FILE *   __stream)  ;



 
extern int puts  (const  char *__s)  ;


 
extern int ungetc  (int __c, FILE *__stream)  ;


 
extern size_t fread  (void *   __ptr, size_t __size,
			  size_t __n, FILE *   __stream)  ;
 
extern size_t fwrite  (const  void *   __ptr, size_t __size,
			   size_t __n, FILE *   __s)  ;


 
extern size_t fread_unlocked  (void *   __ptr, size_t __size,
				   size_t __n, FILE *   __stream)  ;
extern size_t fwrite_unlocked  (const  void *   __ptr,
				    size_t __size, size_t __n,
				    FILE *   __stream)  ;



 
extern int fseek  (FILE *__stream, long int __off, int __whence)  ;
 
extern long int ftell  (FILE *__stream)  ;
 
extern void rewind  (FILE *__stream)  ;

 




 


typedef __off_t off_t;










 
extern int fgetpos  (FILE *   __stream,
			 fpos_t *   __pos)  ;
 
extern int fsetpos  (FILE *__stream, const  fpos_t *__pos)  ;




 
extern void clearerr  (FILE *__stream)  ;
 
extern int feof  (FILE *__stream)  ;
 
extern int ferror  (FILE *__stream)  ;


 
extern void clearerr_unlocked  (FILE *__stream)  ;
extern int feof_unlocked  (FILE *__stream)  ;
extern int ferror_unlocked  (FILE *__stream)  ;



 
extern void perror  (const  char *__s)  ;

 


extern int sys_nerr;
extern const  char * const  sys_errlist[];





 
extern int fileno  (FILE *__stream)  ;



 
extern int fileno_unlocked  (FILE *__stream)  ;




 
extern FILE *popen  (const  char *__command, const  char *__modes)  ;

 
extern int pclose  (FILE *__stream)  ;




 
extern char *ctermid  (char *__s)  ;










 

 
extern void flockfile  (FILE *__stream)  ;

 

extern int ftrylockfile  (FILE *__stream)  ;

 
extern void funlockfile  (FILE *__stream)  ;




 



 










int main(void)
{
  int i;
  double test_seite, test_flaeche;
  double seiten[10 ], flaechen[10 ];

  for (i = 0; i < 10 ; i++)
  {
    printf("Geben Sie die %d. Seitenlaenge ein: ", i);
    scanf("%lf", &seiten[i]);
    flaechen[i] =  seiten[i] * seiten[i]  ;
    printf("Flaeche des zugehoerigen Quadrats: %f\n\n", flaechen[i]);
  }

  test_seite = 9.0;
  printf("quadrat(%f) = %f\n", 
         test_seite,  test_seite * test_seite  );
  printf("quadrat(10.0) = %f\n\n",  10.0 * 10.0  );
  printf("       quadrat(%f+1.0) = %f\n", 
         test_seite,  test_seite+1.0 * test_seite+1.0  );
  printf("quadrat_besser(%f+1.0) = %f\n", 
         test_seite, ( test_seite+1.0 )*( test_seite+1.0 ) );

  return 0;
}