Teaching Kids Programming – Build Array from Permutation
Teaching Kids Programming: Videos on Data Structures and Algorithms Given a zero-based permutation nums (0-indexed), build an array ans of the same length where ans = nums] for each …
A Simple Function to Perform Integer/Float Arithmetic Calculation via AWK
The inbuilt BASH does not support floating point arithmetic calculations but we can easily declare a function to do so via AWK. #!/bin/bash # calc.sh function calc() { awk …
Teaching Kids Programming – Introducing the Chain Function in Python
Teaching Kids Programming: Videos on Data Structures and Algorithms The chain function from itertools is a useful function that allows you to return an iterator that returns element one …
GoLang: Reverse the Bits
Reverse bits of a given 32 bits unsigned integer. Note: Note that in some languages such as Java, there is no unsigned integer type. In this case, both input …
Teaching Kids Programming – Group Integers
Teaching Kids Programming: Videos on Data Structures and Algorithms Given a list of integers nums, return whether you can split the list into 1 or more groups where: The …
Auto Close Resources: A Lock Wrapper in Java that Allows AutoCloseable (Try-With-Resources)
We can use the following Java Wrapper for Lock so that we can Try-With-Resources to Auto Close the Lock: public final class ALock implements AutoCloseable { private final Lock …