递归两则 recursion

1）方程系数

1 10 45 120 210 252 210 120 45 10 1

1 9 36 84 126 126 84 36 9 1

1 8 28 56 70 56 28 8 1

1 7 21 35 35 21 7 1

1 6 15 20 15 6 1

1 5 10 10 5 1

1 4 6 4 1

1 3 3 1

1 2 1

1 1

1

2）转移盘子Number of plate 10

==> 10 9 8 7 6 5 4 3 2 1

==>

==>

==> 10 9 8 7 6 5 4 3 2

==>

==> 1

==> 10 9 8 7 6 5 4 3 2

==> 1

==>

==> 10 9 8 7 6 5 4 3

==> 1

==> 2

==> 10 9 8 7 6 5 4 3

==>

==> 2 1

==> 10 9 8 7 6 5 4 3

==> 1

==> 2

==> 10 9 8 7 6 5 4 3 1

==>

==> 2

.....

==>

==>

==> 10 9 8 7 6 5 4 3 2 1

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