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49 lines
845 B
49 lines
845 B
![]()
5 years ago
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## btreeapplybylevel
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### Instructions
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Write a function, BTreeApplyByLevel, that applies the function given by fn to each node of the tree given by root.
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This function must have the following signature.
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### Expected function
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```go
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func BTreeApplyByLevel(root *TreeNode, fn interface{}) {
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}
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```
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### Usage
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Here is a possible [program](TODO-LINK) to test your function :
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```go
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package main
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import (
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"fmt"
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student ".."
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)
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func main() {
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root := &student.TreeNode{Data: "4"}
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student.BTreeInsertData(root, "1")
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student.BTreeInsertData(root, "7")
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student.BTreeInsertData(root, "5")
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student.BTreeApplyByLevel(root, fmt.Println)
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}
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```
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And its output :
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```console
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student@ubuntu:~/student/btreeapplybylevel$ go build
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student@ubuntu:~/student/btreeapplybylevel$ ./btreeapplybylevel
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4
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1
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7
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5
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student@ubuntu:~/student/btreeapplybylevel$
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```
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