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  1. ** input loop
  2. ** memory layout: mdt_dt_d~dt_*
  3. *   m: the highest digit marker
  4. *   d: each digits
  5. *   *: terminater
  6. m->d,+[
  7.  >t+++++++[-<d------->t]
  8. >>d,+ (slide)]
  9. *-<+[-<+]m
  10. ** halving loop
  11. ** memory layout:
  12. **   M_mn__n__n~__n__*p
  13. **      ~Rh_rhn~__n__*p
  14. **             ~Rh_*P_p
  15. ** M: new highest marker
  16. ** hr: result of d divmod 2
  17. ** R: left r
  18. ** pP: popcount ( previous and new )
  19. m>n+[-
  20.  ** set a new marker
  21.  <<<M-
  22.  ** n loop
  23.  >>>n+[-
  24.   ** borrow
  25.   R<<<<[->>>>n++++++++++<<<<R]
  26.   ** divmod by 2
  27.   >>>>n[<r[-<h+>>>_]>n_?[n<h+>>>_]<<n-]
  28.  >>>n+ (slide)]
  29.  ** move p to P and add R ( the last R )
  30.  >p[-<<P+>>p]<<<<<R[->>>P+<<<R]
  31.  ** set a new terminater and return to the marker
  32.  >>*-<+[-<+]M
  33.  ** shrink if the highest digit is zero
  34.  >[<<<]>>>h
  35. hn+ (slide)]
  36.  
  37. ** divmod loop **
  38. >p[
  39.  ** divmod by 10
  40.  >++++++++++
  41.  <[->-[>+>>]>[+[-<+>]>+>>]<<<<<]
  42.  >[-]>+
  43. >]
  44. ** output loop **
  45. <[-
  46.  ** convert a number to a character code
  47.  >++++++[-<++++++++>]
  48.  <.
  49. <<<]
  50.  
Success #stdin #stdout 0s 1912KB
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https://ideone.com/yoNt6G
language:
Brainf**k (bff 1.0.6)
created:
9 years ago
visibility:
public

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