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Leetcode -- Day 17 & Day 18 & Day 19 substringQuestion 1Implement strStr()Implement strStr(). Returns the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack. Below is my first direct solution, which looks complex in different case checking ...
“Wide” format data: a small number of records but a large number of features, the main method to deal with this kind of data is dimensionality reduction (such as feature selection, feature reduction like PCA). BA ...
Almost the same tasks I got last year. For example, it would be good 6 502 0 A K 9 hours ago LinkedIn Design rounds question Hi leetcoders I definitly don't have a lot of expirience in interviews and will have LinkedIn onsite soon. It will be 2 different design rounds: Software ...
Leetcode -- Day 11 Question 1 Reverse Integer Reverse digits of an integer. Example1: x = 123, return 321 Example2: x = -123, return -321 We need to consider a lot of cases of input. One particular example is how to deal with many zeros in the end of that number. ...
Day 1338 答案揭晓 DS Interview Question & Answer During analysis, how do you treat missing values? Should we even treat missing values is another important point to consider? If 80% of the values for a variable are ...
Day 1460 DS Interview Question Describe the method to deal with highly skewed binary data classification. BA Interview Question Write a query in SQL to count the number of available rooms for each block in each floor. LeetCode Question
Day 1897 答案揭晓 DS Interview Question & Answer Define: quality assurance, six sigma. Quality assurance: - A way of preventing mistakes or defects in manufacturing products or when delivering services to customers - In a machine learning context: anomaly detection ...
Day 1908 DS Interview Question If you were a data scientist at a web company that sells shoes, how would you build a system that recommends shoes to a visitor? (Question asked in Verizon Data Scientist Interview) LeetCode Question Write a query in SQL to find the name of patients and the...
Question: Given a sorted array nums, remove the duplicates in-place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this by modifying the input array in-place with O(1) extra memory. 中文题目: 给定一个排序数组...