今天爱分享给大家带来python如何判断单向链表中是否有环【面试题详解】【附代码】,希望能够帮助到大家。
# 快慢指针
class Solution(object):
def hasCycle(self, head):
if(head == None or head.next == None):
return False
node1 = head
node2 = head.next
while(node1 != node2):
if(node2 == None or node2.next == None):
return False
node1 = node1.next
node2 = node2.next.next
return True
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