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cryptoizotx

@cryptoizotx

Crypto Trader / Software Engineer

1,024 followers 476 following 841 posts Reputation 40.48

cryptoizotx
@cryptoizotx Dec 27, 2018, 12:28 PM UTC

Keyframe animations with Swift

# SwiftAnimations ### Description SwiftAnimations it's a library created to visualize changes to array. It might be a helpful tool for studying sorting algorithms. You can find out source code with a…

2 upvotes 3 replies $0.00
cryptoizotx
@cryptoizotx Dec 26, 2018, 5:00 PM UTC

One algorithm a day: Keeping track of the largest element in a stack

Imagine that you want to be able to access the largest element in a stack. I know you were dying to do it ! You already have implementation of the stack class: class Stack<Item> { // initialize…

1 upvotes 0 replies $0.00
cryptoizotx
@cryptoizotx Dec 24, 2018, 2:04 AM UTC

One algorithm a day. Write a function that returns best profit you could made from trading.

Write an efficient function that takes stockPrices and returns the best profit I could have made from one purchase and one sale of one share of Apple stock yesterday. func getMaxProfit(_ prices:[Doub…

2 upvotes 0 replies $0.00
cryptoizotx
@cryptoizotx Dec 22, 2018, 5:46 PM UTC

One algorithm a day: floor of the square root of the input

#### Description Implement a function that takes in a 32 bit integer and returns another 32 bit unsigned integer that is the floor of the square root of the input #### Implementation Function can be…

4 upvotes 0 replies $0.00
cryptoizotx
@cryptoizotx Nov 26, 2018, 2:41 PM UTC

iOS Interview: Delegation Pattern in Swift

It's a continuation of my previous post about implementing delegate pattern in iOS. This time it is written in Swift. App Delegate import UIKit @UIApplicationMain class AppDelegate: UIResponder, UIAp…

2 upvotes 0 replies $0.00
cryptoizotx
@cryptoizotx Nov 26, 2018, 2:26 PM UTC

Delegation Pattern in Objective-C

It's been a long time since I had to work with old good Objective-C, the king of brackets [[[[]]]]]]]. I recently had to revisit implementation of one of the fundamental design pattern in iOS, called…

1 upvotes 0 replies $0.00
cryptoizotx
@cryptoizotx Nov 26, 2018, 10:26 AM UTC

Swift Interview Questions Recursion: Print numbers from 0 to n without using for loop.

This one is tricky! How can you print all those numbers with for loop, enumeration, or similar techniques that would make this task trivial? The answer is recursion. Most computer programming languag…

3 upvotes 0 replies $0.01
cryptoizotx
@cryptoizotx Nov 12, 2018, 9:03 PM UTC

Bitwise Operators in Swift

It's not frequently used in a regular job but loved by interviewers. Remember to to represent a bit add 0b to a number. For example 0b1 would be one bit that is equal 1 in decimal value. ### Bitwise…

5 upvotes 1 replies $0.00
cryptoizotx
@cryptoizotx Nov 10, 2018, 2:38 PM UTC

S O L I D Principle Rules in iOS

- The Single Responsibility principle tells us to separate responsibilities. But to know what these responsibilities are, we have to look at the bigger picture of our app. The MVC pattern already hel…

4 upvotes 1 replies $0.00
cryptoizotx
@cryptoizotx Oct 25, 2018, 7:31 PM UTC

Decentralized Programmer: Solidity 101

### Solidity primer #### What is solidity? Solidity is a contract-oriented, high-level language for implementing smart contracts. It was influenced by C++, Python and JavaScript and is designed to ta…

1 upvotes 0 replies $0.00