摘要：
Sometimes people repeat letters to represent extra feeling. For example: "hello" -> "heeellooo" "hi" -> "hiiii" In these strings like "heeellooo", we 阅读全文
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[LeetCode] 43. Multiply Strings_Medium tag: string
2021-08-08 00:02 by Johnson_强生仔仔, 38 阅读, 收藏,
摘要：
Given two non-negative integers num1 and num2 represented as strings, return the product of num1 and num2, also represented as a string. Note: You mus 阅读全文
[LeetCode] 560.Subarray Sum Equals K_Medium tag: Array, Subarray, prefix Sum
2021-06-18 20:36 by Johnson_强生仔仔, 37 阅读, 收藏,
摘要：
Given an array of integers nums and an integer k, return the total number of continuous subarrays whose sum equals to k. Example 1: Input: nums = [1,1 阅读全文
[LeetCode] 491. Increasing Subsequences_Medium tag: backtracking
2021-06-07 18:10 by Johnson_强生仔仔, 37 阅读, 收藏,
摘要：
Given an integer array nums, return all the different possible increasing subsequences of the given array with at least two elements. You may return t 阅读全文
[LeetCode] 66. Plus One_Easy tag: array
2021-08-08 08:56 by Johnson_强生仔仔, 36 阅读, 收藏,
摘要：
Given a non-empty array of decimal digits representing a non-negative integer, increment one to the integer. The digits are stored such that the most 阅读全文
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