LeetCode(16)题解--3Sum Closest
摘要：https://leetcode.com/problems/3sum-closest/ 题目： Given an array S of n integers, find three integers in S such that the sum is closest to a given numbe
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研究领域总结（一）：稀疏——字典学习
摘要：Pre：面试发现自己老讲不条理自己的研究工作，还是要先梳理下。鉴于motivation，本文是侧重结构化的15分钟talk draft，而非务求详尽。有兴趣的欢迎私下讨论。Abstract：本文主要介绍稀疏模型相关，侧重于字典学习和具体应用。1.sparse background2.DL（DIcti...
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LeetCode(15)题解--3Sum
摘要：https://leetcode.com/problems/3sum/ 题目： Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique tripl
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LeetCode(125)题解--Valid Palindrome
摘要：https://leetcode.com/problems/valid-palindrome/ 题目： Given a string, determine if it is a palindrome, considering only alphanumeric characters and igno
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LeetCode(155)题解--Min Stack
摘要：https://leetcode.com/problems/min-stack/ 题目： Design a stack that supports push, pop, top, and retrieving the minimum element in constant time. push(x)
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LeetCode(88)题解-- Merge Sorted Array
摘要：https://leetcode.com/problems/merge-sorted-array/ 题目： Given two sorted integer arrays nums1 and nums2, merge nums2 into nums1 as one sorted array. Not
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