Tiling Spoj 2530 and related

Time to Tile some Dominoes

http://www.spoj.com/problems/M3TILE/

http://www.spoj.com/problems/GNY07H/ (M4TILE)

http://www.spoj.com/problems/M5TILE/ (M5TILE)

(M3TILE) : https://gist.github.com/swapcoder/6738962
(M4TILE) : https://gist.github.com/swapcoder/6738982

i will explain the (M4TILE) and posted (M4TILE) and (M3TILE) codes , last one i will post later

problem can be broken up into 3 subproblems

Sub problems
Check code for related recurrence relations