constant
adj. 不变的;恒定的;经常的
n. [数] 常数;恒量
n. (Constant)人名;(德)康斯坦特
复数 constants
Input Specification
n. 规格;说明书;详述
复数 specifications
test case
测试用例
a positive integer
正整数
nodes in the tree
树中的节点
hence
adv. 因此;今后
the nodes are numbered from 0 to N−1
节点编号从0到N-1
Then N lines follow
然后是N行
corresponds
vi. 符合,一致;相应;通信
each corresponds to a node
每个对应一个节点
indices
n. 指数;目录(index的复数)
index
n. 指标;指数;索引;指针
vi. 做索引
vt. 指出;编入索引中
复数 indexes或indices
and gives the indices of the left and right children of the node
给出了节点左右子树的下标
Any pair of children are separated by a space
任何一对子树都用空格隔开
For each test case, print in one line all the leaves’ indices in the order of top down, and left to right
对于每个测试用例,按从上到下,从左到右的顺序在一行打印所有叶子的索引
There must be exactly one space between any adjacent numbers
相邻的数之间必须恰好有一个空格
a singly linked list L
reverse