描述
A linked list is given such that each node contains an additional random pointer which could point to any node in the list or null.
Return a deep c
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描述
Given a linked list, reverse the nodes of a linked list k at a time and return its modified list.
If the number of nodes is not a multiple of k the
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描述
Given a linked list, swap every two adjacent nodes and return its head.
For example,Given 1->2->3->4, you should return the list as 2->
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描述
Given a linked list, remove the nth node from the end of list and return its head.
For example,
Given linked list: 1->2->3->4->5, and n
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描述
Rotate an array of n elements to the right by k steps.
For example, with n = 7 and k = 3, the array [1,2,3,4,5,6,7] is rotated to [5,6,7,1,2,3,4].
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描述
Given a list, rotate the list to the right by k places, where k is non-negative.
For example:Given 1->2->3->4->5->NULL and k = 2,ret
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描述
Given a sorted linked list, delete all duplicates such that each element appear only once.
For example,Given 1->1->2, return 1->2.Given 1-
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描述
Given a sorted linked list, delete all nodes that have duplicate numbers, leaving only distinct numbers from the original list.
For example,Given 1
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描述
Given a linked list and a value x, partition it such that all nodes less than x come before nodes greater than or equal to x.
You should preserve t
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描述
Reverse a linked list from position m to n. Do it in-place and in one-pass.
For example:Given 1->2->3->4->5->NULL, m = 2 and n = 4,
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描述
Reverse a singly linked list.
分析简单题，翻转单链表。时间O(n)，空间O(1)。
代码Python1234567891011121314151617181920# Definition for singly-linked list.class ListNode
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描述
You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a sing
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描述
Given an array of numbers nums, in which exactly two elements appear only once and all the other elements appear exactly twice. Find the two elemen
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描述
Given an array of integers, every element appears three times except for one. Find that single one.
Note:Your algorithm should have a linear runtim
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描述
Given an array of integers, every element appears twice except for one. Find that single one.
Note:Your algorithm should have a linear runtime comp
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