Description: Throw six dice can throw out many permutations of it? As 123456 and 654321 is the same composition. Problem can be transformed into: n r identical balls into a different box, allowing the empty boxes. That solved indefinite equation x1+x2+x3+ ...+ xr = n of non-negative integer solutions (x1, x2, x3, ..., xr), 0 < = Xi < = n so yi = xi+1, into y1+y2+ ..+yr = n+r this case 1 < = yi < = n+1 equivalent n+r r balls into the heap, there are many kinds of issues of law that r-1 partition plates placed in this n+r-1 intervals, the ball separator between The number is equivalent to yi. answer is C (n+r-1, r-1) This procedure using VC++ solve the language problem.
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6个骰子的所有组合问题\6个骰子的所有组合问题.cpp
.....................\6个骰子的所有组合问题.dsp
.....................\6个骰子的所有组合问题.dsw
.....................\6个骰子的所有组合问题.ncb
.....................\6个骰子的所有组合问题.opt
.....................\6个骰子的所有组合问题.plg
.....................\Debug\6个骰子的所有组合问题.exe
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.....................\.....\6个骰子的所有组合问题.obj
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.....................\.....\StdAfx.obj
.....................\.....\vc60.idb
.....................\.....\vc60.pdb
.....................\ReadMe.txt
.....................\StdAfx.cpp
.....................\StdAfx.h
.....................\Debug
6个骰子的所有组合问题
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