solve using python : def alternate$\_$merge$($head$1,$ head$2)$:

#TO DO

print$(\text{'}==============$Test Case $1=============\text{'})$

head$1=$ createList$($np$.$array$([1,2,6,8,11]))$

head$2=$ createList$($np$.$array$([5,7,3,9,4]))$

print$("$Linked List $1$:$")$

printLinkedList$($head$1)$

print$("$Linked List $2$:$")$

printLinkedList$($head$2)$

head $=$ alternate$\_$merge$($head$1,$ head$2)$

print$("$Merged Linked List:"$)$

printLinkedList$($head$)$ #This should print $1-->5-->2-->7-->6-->3-->8-->9-->11-->4$

print$(\text{'}==============$Test Case $2=============\text{'})$

head$1=$ createList$($np$.$array$([5,3,2,-4]))$

head$2=$ createList$($np$.$array$([-4,-6,1]))$

print$("$Linked List $1$:$")$

printLinkedList$($head$1)$

print$("$Linked List $2$:$")$

printLinkedList$($head$2)$

head $=$ alternate$\_$merge$($head$1,$ head$2)$

print$("$Merged Linked List:"$)$

printLinkedList$($head$)$ #This should print $5->-4->3->-6->2->1->-4$

print$(\text{'}==============$Test Case $3=============\text{'})$

head$1=$ createList$($np$.$array$([4,2,-2,-4]))$

head$2=$ createList$($np$.$array$([8,6,5,-3]))$

print$("$Linked List $1$:$")$

printLinkedList$($head$1)$

print$("$Linked List $2$:$")$

printLinkedList$($head$2)$

head $=$ alternate$\_$merge$($head$1,$ head$2)$

print$("$Merged Linked List:"$)$

printLinkedList$($head$)$ #This should print $4->8->2->6->-2->5->-4->-3$