CodesKiller - 博客园

2017年3月6日

424. Longest Repeating Character Replacement

摘要： Given a string that consists of only uppercase English letters, you can replace any letter in the string with another letter at most k times. Find the 阅读全文

posted @ 2017-03-06 09:02 CodesKiller 阅读(141) 评论(0) 推荐(0) 编辑

340. Longest Substring with At Most K Distinct Characters

摘要： Given a string, find the length of the longest substring T that contains at most k distinct characters. For example, Given s = “eceba” and k = 2, T is 阅读全文

posted @ 2017-03-06 08:08 CodesKiller 阅读(170) 评论(0) 推荐(0) 编辑

3. Longest Substring Without Repeating Characters

摘要： Given a string, find the length of the longest substring without repeating characters. Examples: Given "abcabcbb", the answer is "abc", which the leng 阅读全文

posted @ 2017-03-06 07:56 CodesKiller 阅读(152) 评论(0) 推荐(0) 编辑

159. Longest Substring with At Most Two Distinct Characters

摘要： Given a string, find the length of the longest substring T that contains at most 2 distinct characters. For example, Given s = “eceba”, T is "ece" whi 阅读全文

posted @ 2017-03-06 05:18 CodesKiller 阅读(154) 评论(0) 推荐(0) 编辑

2017年3月4日

155. Min Stack

摘要： Design a stack that supports push, pop, top, and retrieving the minimum element in constant time. push(x) -- Push element x onto stack. pop() -- Remov 阅读全文

posted @ 2017-03-04 08:52 CodesKiller 阅读(175) 评论(0) 推荐(0) 编辑

239. Sliding Window Maximum

摘要： Given an array nums, there is a sliding window of size k which is moving from the very left of the array to the very right. You can only see the k num 阅读全文

posted @ 2017-03-04 07:59 CodesKiller 阅读(152) 评论(0) 推荐(0) 编辑

525. Contiguous Array

摘要： Given a binary array, find the maximum length of a contiguous subarray with equal number of 0 and 1. Example 1: Example 2: Note: The length of the giv 阅读全文

posted @ 2017-03-04 06:50 CodesKiller 阅读(620) 评论(0) 推荐(0) 编辑

308. Range Sum Query 2D - Mutable

摘要： Given a 2D matrix matrix, find the sum of the elements inside the rectangle defined by its upper left corner (row1, col1) and lower right corner (row2 阅读全文

posted @ 2017-03-04 05:26 CodesKiller 阅读(132) 评论(0) 推荐(0) 编辑

2017年3月3日

307. Range Sum Query - Mutable

摘要： Given an integer array nums, find the sum of the elements between indices i and j (i ≤ j), inclusive. The update(i, val) function modifies nums by upd 阅读全文

posted @ 2017-03-03 14:22 CodesKiller 阅读(146) 评论(0) 推荐(0) 编辑

304. Range Sum Query 2D - Immutable

摘要： Given a 2D matrix matrix, find the sum of the elements inside the rectangle defined by its upper left corner (row1, col1) and lower right corner (row2 阅读全文

posted @ 2017-03-03 10:47 CodesKiller 阅读(124) 评论(0) 推荐(0) 编辑

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