flatten a binary tree leetcode

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
flatten a binary tree leetcode	0.24	0.3	1639	62	30
flatten	0.05	0.6	7857	33	7
a	1.68	0.3	155	72	1
binary	0.99	0.4	4102	78	6
tree	1.22	0.1	4982	30	4
leetcode	0.02	0.7	320	76	8

Keyword	CPC	PCC	Volume	Score
flatten a binary tree leetcode	0.83	0.2	8702	21
flatten binary tree to linked list leetcode	0.17	0.2	1591	97
flatten a tree leetcode	0.91	0.3	2252	52
construct a binary tree leetcode	1.9	0.4	4299	22
width of a binary tree leetcode	1.09	0.5	2562	23
create a binary tree leetcode	0.58	0.4	1494	10
size of a binary tree leetcode	1.67	1	5145	86
binary tree leetcode problems	0.97	0.9	6730	94
complete binary tree leetcode	1.16	0.4	7950	56
binary tree tilt leetcode	0.5	0.1	3093	3
boundary of binary tree leetcode	0.13	0.9	3456	12
same binary tree leetcode	1.76	1	7333	11
binary tree height leetcode	0.16	0.5	7864	28
view of binary tree leetcode	0.07	0.6	2650	71