m tree from the root node are numbered starting with 1, the first child node of the i-th node number j
j=(i-1)*m+2
https://wenku.baidu.com/view/079df02bdcccda38376baf1ffc4ffe473268fd5b
m tree from the root node are numbered starting with 1, the first child node of the i-th node number j
j=(i-1)*m+2
https://wenku.baidu.com/view/079df02bdcccda38376baf1ffc4ffe473268fd5b