题目描述：
Remove all elements from a linked list of integers that have value val.
Example
Given: 1 --> 2 --> 6 --> 3 --> 4 --> 5 --> 6, val = 6
Return: 1 --> 2 --> 3 --> 4 --> ...
标签归档：leetcode
[LeetCode]Remove Linked List Elements
[LeetCode]Happy Number
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LeetCode.
题目描述：
Write an algorithm to determine if a number is "happy".
A happy number is a number defined by the following process: Starting with any positive integer, replace the number by the sum of the squares of its digits, and ...
[LeetCode]Bitwise AND of Numbers Range
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LeetCode.
题目描述：
Given a range [m, n] where 0 <= m <= n <= 2147483647, return the bitwise AND of all numbers in this range, inclusive.
For example, given the range [5, 7], you should return 4.
题目大意：
给定范围[m, n ...
[LeetCode]Number of Islands
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LeetCode.
题目描述：
Given a 2d grid map of '1's (land) and '0's (water), count the number of islands. An island is surrounded by water and is formed by connecting adjacent lands horizontally or vertically. You may assume all four edges of ...
[LeetCode]Longest Substring Without Repeating Characters
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LeetCode.
题目描述：
Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters for "abcabcbb" is "abc", which the length is 3. For "bbbbb" the longest substring is "b", with the ...