1樓:匿名使用者
對於0:
(0,1,2)、(0,1,3)(0,1,4)(0,1,5)(0,1,6)(0,1,7)(0,1,8)(0,1,9)(0,1,10);
(0,2,3)(0,2,4)(0,2,5)(0,2,6)(0,2,7)(0,2,8)(0,2,9)(0,2,10)
(0,3,4)(0,3,5)(0,3,6)(0,3,7)(0,3,8)(0,3,9)(0,3,10)
(0,4,5)(0,4,6)(0,4,7)(0,4,8)(0,4,9)(0,4,10)
(0,5,6)(0,5,7)(0,5,8)(0,5,9)(0,5,10)
(0,6,7)(0,6,8)(0,6,9)(0,6,10)
(0,7,8)(0,7,9)(0,7,10)
(0,8,9)(0,8,10)
(0,9,10)
對於1:
(1,2,3)(1,2,4)(1,2,5)(1,2,6)(1,2,7)(1,2,8)(1,2,9)(1,2,10)
(1,3,4)(1,3,5)(1,3,6)(1,3,7)(1,3,8)(1,3,9)(1,3,10)
(1,4,5)(1,4,6)(1,4,7)(1,4,8)(1,4,9)(1,4,10)
(1,5,6)(1,5,7)(1,5,8)(1,5,9)(1,5,10)
(1,6,7)(1,6,8)(1,6,9)(1,6,10)
(1,7,8)(1,7,9)(1,7,10)
(1,8,9)(1,8,10)
(1,9,10)
對於2:
(2,3,4)(2,3,5)(2,3,6)(2,3,7)(2,3,8)(2,3,9)(2,3,10)
(2,4,5)(2,4,6)(2,4,7)(2,4,8)(2,4,9)(2,4,10)
(2,5,6)(2,5,7)(2,5,8)(2,5,9)(2,5,10)
(2,6,7)(2,6,8)(2,6,9)(2,6,10)
(2,7,8)(2,7,9)(2,7,10)
(2,8,9)(2,8,10)
(2,9,10)
對於3:
(3,4,5)(3,4,6)(3,4,7)(3,4,8)(3,4,9)(3,4,10)
(3,5,6)(3,5,7)(3,5,8)(3,5,9)(3,5,10)
(3,6,7)(3,6,8)(3,6,9)(3,6,10)
(3,7,8)(3,7,9)(3,7,10)
(3,8,9)(3,8,10)
(3,9,10)
對於4:
(4,5,6)(4,5,7)(4,5,8)(4,5,9)(4,5,10)
(4,6,7)(4,6,8)(4,6,9)(4,6,10)
(4,7,8)(4,7,9)(4,7,10)
(4,8,9)(4,8,10)
(4,9,10)
對於5:
(5,6,7)(5,6,8)(5,6,9)(5,6,10)
(5,7,8)(5,7,9)(5,7,10)
(5,8,9)(5,8,10)
(5,9,10)
對於6:
(6,7,8)(6,7,9)(6,7,10)
(6,8,9)(6,8,10)
(6,9,10)
對於7:
(7,8,9)(7,8,10)
(7,9,10)
對於8:
(8,9,10)
2樓:匿名使用者
c11(3)=11*10*9/6=165(種)
一共有165種。
012、013、014......
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