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solution #85

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12 changes: 11 additions & 1 deletion linked_lists/intersection.py
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Original file line number Diff line number Diff line change
Expand Up @@ -11,4 +11,14 @@ def intersection_node(headA, headB):
""" Will return the node at which the two lists intersect.
If the two linked lists have no intersection at all, return None.
"""
pass
currentA = headA
currentB = headB
while currentA:
while currentB:
if currentA == currentB:
return currentA
currentB = currentB.next
currentA = currentA.next
currentB = headB
return None