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全部文章 / leetcode （共39篇）

[leetcode][201]. Bitwise AND of Numbers Range

Given a range [m, n] where 0 <= m <= n <= 2147483647, return the bitwise AND of all numbers in this range, inclusive. For example, given th...

2020-07-13

0 435

[leetcode][462] Minimum Moves to Equal Array Elements II

Given a non-empty integer array, find the minimum number of moves required to make all array elements equal, where a move is incrementing a selected e...

2020-07-13

0 421

[leetcode][382] Linked List Random Node

Given a singly linked list, return a random node's value from the linked list. Each node must have the same probability of being chosen. Follow up: ...

2020-07-13

0 476

[leetcode][290]Word Pattern

Given a pattern and a string str, find if str follows the same pattern. Here follow means a full match, such that there is a bijection between a let...

2020-07-13

0 382

[leetcode][81] Search in Rotated Sorted Array II

Follow up for "Search in Rotated Sorted Array": What if duplicates are allowed? Would this affect the run-time complexity? How and why? ...

2020-07-13

0 585

[leetcode][461]461. Hamming Distance

The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Given two integers x and y, calc...

2020-07-13

0 398

[leetcode][88] Merge Sorted Array

Given two sorted integer arrays nums1 and nums2, merge nums2 into nums1 as one sorted array. Note: You may assume that nums1 has enough space (size...

2020-07-13

0 390

[leetcode]237. Delete Node in a Linked List

Write a function to delete a node (except the tail) in a singly linked list, given only access to that node. Supposed the linked list is 1 -> 2 -...

2020-07-13

0 490

[leetcode][25]Reverse Nodes in k-Group

Given a linked list, reverse the nodes of a linked list k at a time and return its modified list. k is a positive integer and is less than or equal ...

2020-07-13

0 516