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2.0 KiB
2.0 KiB
sametree
WARNING! VERY IMPORTANT!
For this exercise a function will be tested with the exam own main. However the student still needs to submit a structured program:
This means that:
- The package needs to be named
package main. - The submitted code needs one declared function main(
func main()) even if empty. - The function main declared needs to also pass the
Restrictions Checker(illegal functions tester). It is advised for the student to just empty the function main after its own testing are done. - Every other rules are obviously the same than for a
program.
Instructions
Given two binary trees, write a function to check if they are the same or not.
Two binary trees are considered the same if they are structurally identical and the nodes have the same value.
Write a function, IsSameTree, that returns bool.
Expected function
type TreeNodeL struct {
Left *TreeNodeL
Val int
Right *TreeNodeL
}
func IsSameTree(p *TreeNodeL, q *TreeNodeL) bool {
}
Example 1:
Input:
1
/ \
2 3
[1,2,3]
1
/ \
2 3
[1,2,3]
Output: true
Input:
1
/
2
[1,2],
1
\
2
[1,null,2]
Output: false
Input:
1
/ \
2 1
[1,2,1],
1
/ \
1 2
[1,1,2]
Output: false
Usage
Here is a possible program to test your function :
package main
func main() {
t1 := NewRandTree()
t2 := NewRandTree()
fmt.Println(IsSameTree(t1, t2))
}
Output
student@ubuntu:~/[[ROOT]]/test$ go build
student@ubuntu:~/[[ROOT]]/test$ ./test
true
student@ubuntu:~/[[ROOT]]/test$