What temperature does your Mac CPU idle at?
Sometimes you will find that your Mac is running very hot, and you may want to keep track of it over time to see if it’s persistent or only a …
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In-depth guides, insights, and best practices for modern software engineering
Split String into Parts in Java
The challenge
Split a given string into different strings of equal size.
Example:
Split the below string into other strings of size #3 …[Solved] ERROR 1030 (HY000): Got error 168 from storage engine
If you are getting the following error in MySQL:
ERROR 1030 (HY000): Got error 168 from storage engine
Then this usually means that your server has …
Read Article →Largest Pair Sum in Array in Python
The challenge
Given a sequence of numbers, find the largest pair sum in the sequence.
For example
[10, 14, 2, 23, 19] --> 42 (= 23 + 19)
[99, 2, …Alphabet Symmetry in Python
The challenge
Consider the word "abode". We can see that the letter a is in position 1 and b is in position 2. In the alphabet, a and b are …
Exes and Ohs in Java
The challenge
Check to see if a string has the same amount of ‘x’s and ‘o’s. The method must return a boolean and be case insensitive. The …
Read Article →Sum of Odd Cubed Numbers in Python
The challenge
Find the sum of the odd numbers within an array, after cubing the initial integers. The function should return None if any of the values …
Halving Sum in Python
The challenge
Given a positive integer n, calculate the following sum:
n + n/2 + n/4 + n/8 + ...
All elements of the sum are the results of integer …
Read Article →Convert a LinkedList to a String in Python
The challenge
Preloaded for you is a class, struct, or derived data type Node (depending on the language) used to construct linked lists in this …
Most Digits from List in Python
The challenge
Find the number with the most digits.
If two numbers in the argument array have the same number of digits, return the first one in the …
Read Article →Check if all Values in Array are Smaller in Python
The challenge
You will be given an array and a limit value. You must check that all values in the array are below or equal to the limit value. If they …
Maximum Product from List of Integers in Python
The challenge
Given an array of integers, Find the maximum product obtained from multiplying 2 adjacent numbers in the array.
Notes
- Array/list size …
Sum of Array Singles in Python
The challenge
You are given an array of numbers in which two numbers occur once and the rest occur only twice. Your task is to return the sum of the …
Read Article →Flatten and Sort an Array in Python
The challenge
Given a two-dimensional array of integers, return the flattened version of the array with all the integers in the sorted (ascending) …
Read Article →Playing the Alphabet War in Python
The challenge
Introduction
There is a war and nobody knows – the alphabet war!
There are two groups of hostile letters. The tension between left side …
Sum of numbers from 0 to N in Python
The challenge
We want to generate a function that computes the series starting from 0 and ending until the given number.
Example:
Input: > 6 …
Read Article →Sorted? yes? no? how? ..in Python
The challenge
Complete the method which accepts an array of integers, and returns one of the following:
"yes, ascending"– if the numbers …
How to Fix String Casing in Python
The challenge
You will be given a string that may have mixed uppercase and lowercase letters and your task is to convert that string to either …
Read Article →How to Remove Duplicate Words from a String in Python
The challenge
Remove all duplicate words from a string, leaving only single (first) words entries.
Example:
Input:
‘alpha beta beta gamma gamma gamma …
Read Article →How to Validate a Regex PIN Code in Python
The challenge
ATM machines allow 4 or 6 digit PIN codes and PIN codes cannot contain anything but exactly 4 digits or exactly 6 digits.
If the …
Read Article →Combine strings and remove duplicates in Python
The challenge
Take 2 strings s1 and s2 including only letters from ato z. Return a new sorted string, the longest possible, containing distinct …
How to Repeat by String Index in Golang
The challenge
Create a function that repeats each character by the amount of it’s index value of the original string.
Examples: …
Read Article →How to make an arithmetic function in Java
The challenge
Given two numbers and an arithmetic operator (the name of it, as a string), return the result of the two numbers having that operator …
Read Article →Calculate the Third Angle of a Triangle in Go
The challenge
You are given two interior angles (in degrees) of a triangle.
Write a function to return the 3rd.
Note: only positive integers will be …
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