All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info

Home > Algorithms
Spirals (Posted on 2003-08-21) Difficulty: 3 of 5
Write a program (or explain how to do it) that will display a descending "spiral" of NxN numbers, using constant space (no arrays allowed). For example, here's what the spiral looks like for N=10:
   99    98    97    96    95    94    93    92    91    90
   64    63    62    61    60    59    58    57    56    89
   65    36    35    34    33    32    31    30    55    88
   66    37    16    15    14    13    12    29    54    87
   67    38    17     4     3     2    11    28    53    86
   68    39    18     5     0     1    10    27    52    85
   69    40    19     6     7     8     9    26    51    84
   70    41    20    21    22    23    24    25    50    83
   71    42    43    44    45    46    47    48    49    82
   72    73    74    75    76    77    78    79    80    81

See The Solution Submitted by DJ    
Rating: 4.4167 (12 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
SolutionAnother solution!!phenomenon2004-02-21 02:53:41
SolutionRecursiveAJ2003-09-05 01:02:47
NeatAdam Sisco2003-08-23 10:13:16
re(3): solutionYour buddy2003-08-21 17:28:26
re(2): solutionCharlie2003-08-21 16:54:31
re(2): FULL SOLUTION (in C)Charlie2003-08-21 16:51:49
re: solutionCharlie2003-08-21 16:39:35
SolutionsolutionCharlie2003-08-21 16:36:43
Solutionre: FULL SOLUTION (in C)Your buddy2003-08-21 15:55:56
SolutionFULL SOLUTION (in C)Your buddy2003-08-21 15:50:00
Please log in:
Login:
Password:
Remember me:
Sign up! | Forgot password


Search:
Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (3)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2017 by Animus Pactum Consulting. All rights reserved. Privacy Information