In Swift, I want to loop an array and compare each element with the previous and/or next element. For each comparison, I will generate a new element or something Don’t do it either. Is there such a
Tag: traversal
Lua traversal folder
1. Traverse all lua files under the file, This can be changed, only use luaforwindow to execute
1. Traverse all the lua files under the file, this can be changed, you need to use luaforwindow
Split string and loop the value in the MYSQL process
I have encountered a situation where I have to pass a comma-separated string to a MySQL procedure and split the string and insert these values into the table as rows.
As shown in the figure
144. Pre-sequence traversal of the binary tree
Given a binary tree, return its previous traversal.
Example:
Input: [1,null,2,3]
1
\
2
/
3 Output: [1,2,3]
Advanced: The recursive algorithm is very simple, can you do it through