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@_code18

I just solved this Amazon SQL Interview question! Think you can solve it too? datalemur.com/questions/sql-… #DataLemur #SQL #Amazon


I completed all 95 PYTHON exercises from W3Schools. w3schools.com/PYTHON/exercis…


I got 25 out of 25 points on the Python Quiz from W3Schools w3schools.com/quiztest/quizt…


whats wrong with @LeetCode ? crashed? #leetcode


you are given two lists: one contains posts and the other contains comments. Each post and comment is represented as a dictionary with a 'postId'. Your task is to write a function that counts the number of comments for each post.

_code18's tweet image. you are given two lists: one contains posts and the other contains comments. Each post and comment is represented as a dictionary with a 'postId'. Your task is to write a function that counts the number of comments for each post.
_code18's tweet image. you are given two lists: one contains posts and the other contains comments. Each post and comment is represented as a dictionary with a 'postId'. Your task is to write a function that counts the number of comments for each post.

You will be provided with three sorted arrays, and your task is to find the common elements in all three arrays.

_code18's tweet image. You will be provided with three sorted arrays, and your task is to find the common elements in all three arrays.

you are given a keyboard layout consisting of a string of unique characters in lower case and a word. Your task is to write a function that calculates the time taken to type this word on the single-row keyboard.

_code18's tweet image. you are given a keyboard layout consisting of a string of unique characters in lower case and a word. Your task is to write a function that calculates the time taken to type this word on the single-row keyboard.
_code18's tweet image. you are given a keyboard layout consisting of a string of unique characters in lower case and a word. Your task is to write a function that calculates the time taken to type this word on the single-row keyboard.

You're helping a food delivery company to improve its service. Given the delivery times of past orders, your task is to write a function to predict the time an immediate order will be delivered. The prediction should be the median of the past delivery times

_code18's tweet image. You're helping a food delivery company to improve its service. Given the delivery times of past orders, your task is to write a function to predict the time an immediate order will be delivered. The prediction should be the median of the past delivery times
_code18's tweet image. You're helping a food delivery company to improve its service. Given the delivery times of past orders, your task is to write a function to predict the time an immediate order will be delivered. The prediction should be the median of the past delivery times

You are given an integer number and your task is to write a function that verifies if this number is an Armstrong number or not. An Armstrong number is a number that is equal to the sum of cubes of its digits. For example, 153 is an Armstrong number because 111 + 555 + 333 = 153

_code18's tweet image. You are given an integer number and your task is to write a function that verifies if this number is an Armstrong number or not.

An Armstrong number is a number that is equal to the sum of cubes of its digits. For example, 153 is an Armstrong number because 111 + 555 + 333 = 153
_code18's tweet image. You are given an integer number and your task is to write a function that verifies if this number is an Armstrong number or not.

An Armstrong number is a number that is equal to the sum of cubes of its digits. For example, 153 is an Armstrong number because 111 + 555 + 333 = 153

You are given an array of integers. Your task is to find the largest unique number in this array, i.e., the largest number that appears exactly once. If there are no unique numbers, return -1.

_code18's tweet image. You are given an array of integers. Your task is to find the largest unique number in this array, i.e., the largest number that appears exactly once. If there are no unique numbers, return -1.
_code18's tweet image. You are given an array of integers. Your task is to find the largest unique number in this array, i.e., the largest number that appears exactly once. If there are no unique numbers, return -1.

In this challenge, you will be given a string s, and your task is to write a function to remove all the vowels from that string.

_code18's tweet image. In this challenge, you will be given a string s, and your task is to write a function to remove all the vowels from that string.
_code18's tweet image. In this challenge, you will be given a string s, and your task is to write a function to remove all the vowels from that string.

You are given a list of social media posts and a word that has been flagged for review. Your task is to write a function to count how many posts contain the flagged word.

_code18's tweet image. You are given a list of social media posts and a word that has been flagged for review. Your task is to write a function to count how many posts contain the flagged word.
_code18's tweet image. You are given a list of social media posts and a word that has been flagged for review. Your task is to write a function to count how many posts contain the flagged word.

You are given an array of integers and an integer K. Your task is to find the maximum sum of a pair of numbers in the array such that their sum is less than K.

_code18's tweet image. You are given an array of integers and an integer K. Your task is to find the maximum sum of a pair of numbers in the array such that their sum is less than K.
_code18's tweet image. You are given an array of integers and an integer K. Your task is to find the maximum sum of a pair of numbers in the array such that their sum is less than K.

You are given sales data in the form of a list of dictionaries. Each dictionary represents a sale with 'item' and 'quantity' keys. Your task is to write a function that determines the top-selling item.

_code18's tweet image. You are given sales data in the form of a list of dictionaries. Each dictionary represents a sale with 'item' and 'quantity' keys. Your task is to write a function that determines the top-selling item.
_code18's tweet image. You are given sales data in the form of a list of dictionaries. Each dictionary represents a sale with 'item' and 'quantity' keys. Your task is to write a function that determines the top-selling item.

You are given a list of tuples. Each tuple consists of two integers, where the first integer is the project ID and the second integer is the employee ID. Your task is to write a function that determines which project has the maximum number of employees.

_code18's tweet image. You are given a list of tuples. Each tuple consists of two integers, where the first integer is the project ID and the second integer is the employee ID. Your task is to write a function that determines which project has the maximum number of employees.
_code18's tweet image. You are given a list of tuples. Each tuple consists of two integers, where the first integer is the project ID and the second integer is the employee ID. Your task is to write a function that determines which project has the maximum number of employees.

Develop a function days_in_month(month, year), which accepts a month and a year and returns the number of days in that particular month. This function must take into account leap years for the month of February.

_code18's tweet image. Develop a function days_in_month(month, year), which accepts a month and a year and returns the number of days in that particular month. This function must take into account leap years for the month of February.

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