public/tests/go/solutions/sametree.go

package correct

type TreeNodeL struct {
	Left  *TreeNodeL
	Val   int
	Right *TreeNodeL
}

func IsSameTree(p *TreeNodeL, q *TreeNodeL) bool {
	if p == nil && q == nil {
		return true
	}
	return checkIfEq(p, q)
}

func checkIfEq(t1 *TreeNodeL, t2 *TreeNodeL) bool {
	if t1 == nil && t2 == nil {
		return true
	}
	if t1 == nil || t2 == nil {
		return false
	}
	return t1.Val == t2.Val && checkIfEq(t1.Right, t2.Right) && checkIfEq(t1.Left, t2.Left)
}