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