仅供自己学习 题目: The string "PAYPALISHIRING" is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a ...
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2021-01-27 13:14:49
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剑指 Offer 04. 二维数组中的查找 在一个 n * m 的二维数组中,每一行都按照从左到右递增的顺序排序,每一列都按照从上到下递增的顺序排序。请完成一个高效的函数,输入这样的一个二维数组和一个整数,判断数组中是否含有该整数。 示例: 现有矩阵 matrix 如下: [ [1, 4, 7, 1 ...
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2021-01-26 11:58:21
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Power Strings Description Given two strings a and b we define a*b to be their concatenation. For example, if a = "abc" and b = "def" then a*b = "abcde ...
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2021-01-26 11:47:12
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Problem LeetCode Given the root of a binary tree, return the sum of every tree node's tilt. The tilt of a tree node is the absolute difference between ...
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2021-01-25 11:29:21
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Sort the Matrix Diagonally (M) 题目 A matrix diagonal is a diagonal line of cells starting from some cell in either the topmost row or leftmost column a ...
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2021-01-25 11:27:14
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Problem LeetCode Given a binary search tree with non-negative values, find the minimum absolute difference between values of any two nodes. Example: I ...
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2021-01-21 10:55:51
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Given an increasing sequence S of N integers, the median is the number at the middle position. For example, the median of S1 = { 11, 12, 13, 14 } is 1 ...
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2021-01-21 10:52:05
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题目描述 Given two sorted arrays nums1 and nums2 of size m and n respectively, return the median of the two sorted arrays. Follow up: The overall run time ...
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2021-01-19 12:12:17
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Given a string , determine if it is?valid. A string is?valid?if, starting with an empty string , you can?transform into after performing the following ...
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2021-01-18 11:15:29
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题目 在一个 n * m 的二维数组中,每一行都按照从左到右递增的顺序排序,每一列都按照从上到下递增的顺序排序。请完成一个高效的函数,输入这样的一个二维数组和一个整数,判断数组中是否含有该整数。 示例: 现有矩阵 matrix 如下: [ [1, 4, 7, 11, 15], [2, 5, 8, 1 ...
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2021-01-14 10:57:46
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