Talk:ABC problem: Difference between revisions

Content added Content deleted
(→‎Greedy algorithm: added another test case with a different set of blocks. -- ~~~~)
Line 78: Line 78:


:::::: For a greedy algorithm, the order of blanks may be important.   That is, in another order than shown (i.e., '''AC AC AB AB'''), it most likely would find a solution.   (This was an error in my first attempt at programming a solution in REXX which turned out to be a greedy algorithm and it didn't find a solution for the   '''abba'''   or   '''auto'''   problem as stated above).   The above block order ('''AB AB AC AC''') is the "worst" order to be in, as a greedy algorithm would find a letter on the first block that contained the letter, and "remove" that block from further consideration.   The game of ''Scrabble'' (R) doesn't have multiple letters on a tile. -- [[User:Gerard Schildberger|Gerard Schildberger]] ([[User talk:Gerard Schildberger|talk]]) 23:35, 11 January 2014 (UTC)
:::::: For a greedy algorithm, the order of blanks may be important.   That is, in another order than shown (i.e., '''AC AC AB AB'''), it most likely would find a solution.   (This was an error in my first attempt at programming a solution in REXX which turned out to be a greedy algorithm and it didn't find a solution for the   '''abba'''   or   '''auto'''   problem as stated above).   The above block order ('''AB AB AC AC''') is the "worst" order to be in, as a greedy algorithm would find a letter on the first block that contained the letter, and "remove" that block from further consideration.   The game of ''Scrabble'' (R) doesn't have multiple letters on a tile. -- [[User:Gerard Schildberger|Gerard Schildberger]] ([[User talk:Gerard Schildberger|talk]]) 23:35, 11 January 2014 (UTC)

::::::: Scrabble: true but the order to arrange the letters is of no importance. And can you point me to a definition of greedy algorithm? The Wikipedia article I saw does not exactly describe what your first attempt did, does it? --[[User:Walterpachl|Walterpachl]] ([[User talk:Walterpachl|talk]]) 12:31, 12 January 2014 (UTC)