Coin Change Denominations
Problem Given some amount of money integer, and an array of integer coins, calculate the total number of ways to make change. Approach Suppose that we »
Forall and Exists in Scala
def forall(s: Set, p: Int => Boolean): Boolean = { def iter(a: Int): Boolean = { if (contains(s, a) && !p(a)) false // If the predicate »
Scala Anonymous Functions
Material: https://class.coursera.org/progfun-005/ A type is basically an alias. It allows for neater code, and simplified readability. Since we can have function types, »
Intro to Python Lambda
Lambdas are simply anonymous functions for Python. We often don't want to write a whole new function with a name if the function itself only consists »
A quick look at Scala and the syntax
The syntax in Scala can look confusing very fast.. def exists(s: Set, p: Int => Boolean): Boolean = !forall(s, (x: Int) => !p(x)) p »