s******e
发帖数: 108 | 1 Design an iterator for a collection of collections. The iterator should hide
the nesting, allowing you to iterate all of the elements belonging to all
of the collections as if you were working with a single collection.
For Example:
a={{1,2,3},4,{},{5,6,{7,{},{8}}},}.
The result of calling 8 time next() should be:
1,2,3,4,5,6,7,8. | c****p
发帖数: 6474 | 2 看着像DFS
hide
【在 s******e 的大作中提到】
: Design an iterator for a collection of collections. The iterator should hide
: the nesting, allowing you to iterate all of the elements belonging to all
: of the collections as if you were working with a single collection.
: For Example:
: a={{1,2,3},4,{},{5,6,{7,{},{8}}},}.
: The result of calling 8 time next() should be:
: 1,2,3,4,5,6,7,8.
| d********t
发帖数: 9628 | 3 为啥要那么复杂？如果a是array的话直接next就好了
【在 c****p 的大作中提到】
: 看着像DFS
:
: hide
| B*******1
发帖数: 2454 | 4 是不是用一个iterator，里面根据每个collection的类型再call相应对象的iterator去
打印出数。 | A**u
发帖数: 2458 | |
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