New Arithmetic Idea to Solve the Completely Result of Permutation and Combination
DU Xue-ping, NC Cutter · Harbin Ligong Daxue xuebao · 2005
By now, the algorithm, calculating the permutation and combination by computer, is of high complexity and bad intelligence. In order to overcome this drawback, one new algorithm that applies Hash table to permute the key and indirectly operates the element, is put forward. The method enhances the algorithm' s logical distinction and the code' s maintenance greatly, only expensing little time and space. As every step in the procedure has very low calculated coupling, enhancing the expansibility of the procedure makes it possible to permute massive elements and select elements randomly.