162. Find Peak Element
A peak element is an element that is greater than its neighbors. Given an input array where num[i] ≠…
287. Find the Duplicate Number
Given an array nums containing n + 1 integers where each integer is between 1 and n (inclusive), pro…
49. Group Anagrams
Given an array of strings, group anagrams together. For example, given: [“eat”, “tea”, “tan”, “ate”,…
Array解题方法小结
LeetCode上的相关题目(easy) 26, 27, 35, 48, 88 118, 119, 121, 122, 136, 162, 167, 169 217, 219, 243, 268, …
LeetCode – 48. Rotate Image
You are given an n x n 2D matrix representing an image. Rotate the image by 90 degrees (clockwise). …
LeetCode – 581. Shortest Unsorted Continuous Subarray
Given an integer array, you need to find one continuous subarray that if you only sort this subarray…
LeetCode – 119. Pascal’s Triangle II
Given an index k, return the kth row of the Pascal’s triangle. For example, given k = 3, Retur…
LeetCode – 118. Pascal’s Triangle
Given numRows, generate the first numRows of Pascal’s triangle. For example, given numRows = 5…
LeetCode – 243. Shortest Word Distance
Given a list of words and two words word1 and word2, return the shortest distance between these two …
LeetCode – 520. Detect Capital
Given a word, you need to judge whether the usage of capitals in it is right or not. We define the u…