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I'm a blogger at Eagle Eye Protection, where we serve our customers with pride and honesty. To better serve you, we created our business with the idea and style of American culture in mind. If you have any more questions, ...
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2 months 0 Answers 41 views

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Read a very detailed and well-written blog about Tuples in Python. on Scaler topics.   Want to understand scenarios where tuples preferred to lists in Python?    
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5 months 0 Answers 102 views Newbie

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I'm learning about Tuples in Python and want to know how to fetch a sub tuple from a collection by slicing it from a start index and a stop index
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Anonymous 5 months 0 Answers 91 views

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Table - Incidents Column Date_of_incidence , incidents Get the start date with the longest period without any incidence  
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9 months 0 Answers 496 views Grand Master

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Q: We have a product. It’s screen and event data is as below: Screen Name  Event Name  Timestamp A                        1                      ...
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9 months 0 Answers 214 views Newbie

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Q: We have CUSTOMER table having columns as Customer_Name, Merchant_name (Amazon, Flipkart, Myntra etc.) and Transaction_value (Purchase value for each of these merchants). Write a query to Transpose this into Customer Name, Merchant Names as individual columns and their transaction ...
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9 months 0 Answers 249 views Newbie

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Q: We have a CUSTOMER table having columns as Cust_ID, Month, Sales_value. Write a SQL query to add the missing months for each customer and to have sales value = 0, corresponding to those missing months which are added
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9 months 0 Answers 229 views Newbie

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Given a string containing just the characters '(' and ')', find the length of the longest valid (well-formed) parentheses substring.
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10 months 0 Answers 129 views Great Grand Master

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You are given a set of n types of rectangular 3-D boxes, where the i^th box has height h(i), width w(i) and depth d(i) (all real numbers). You want to create a stack of boxes which is as tall as ...
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10 months 0 Answers 126 views Great Grand Master

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Given an array of integers nums sorted in ascending order, find the starting and ending position of a given target value. If target is not found in the array, return [-1, -1]. You must write an algorithm with O(log n) runtime complexity.
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10 months 0 Answers 116 views Great Grand Master

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Given two non-negative integers num1 and num2 represented as strings, return the product of num1 and num2, also represented as a string.
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10 months 0 Answers 113 views Great Grand Master

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Given an array of distinct integers candidates and a target integer target, return a list of all unique combinations of candidates where the chosen numbers sum to target. You may return the combinations in any order. The same number may be ...
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10 months 0 Answers 208 views Great Grand Master

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Given a rod of length n inches and an array of prices that includes prices of all pieces of size smaller than n. Determine the maximum value obtainable by cutting up the rod and selling the pieces. For example, if ...
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10 months 0 Answers 142 views Great Grand Master

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Given n dice each with m faces, numbered from 1 to m, find the number of ways to get sum X. X is the summation of values on each face when all the dice are thrown.  
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10 months 0 Answers 116 views Great Grand Master

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Describe a project you're proud of If I interview your PhD advisory, and I invite him/her to describe your strength and weakness, what do you think he will say.
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10 months 0 Answers 130 views Great Grand Master

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The homicide rate in Scotland fell last year to 99 from 115 the year before. Is this reported change really noteworthy?
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10 months 0 Answers 130 views Great Grand Master

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Given a list of all followers in format: 123, 345;234, 678;345, 123;…where the first column contains the Id of the follower, and the second one is the Id of who’s followed, find all mutual follows(pair 123, 345 in the example ...
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10 months 0 Answers 146 views Great Grand Master

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Given a 2-column file with user codes and counts, retrieve the top-k users based on a score that is a function of the number of times they appear on the file and these counts.
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10 months 0 Answers 157 views Great Grand Master