valeriyvan

#!/bin/bash

if [ -f "/opt/swift/bin/swift" ]; then
  echo ====== Swift is already installed at /opt/swift, exiting!
  exit 1
fi

for i in "$@"
do
case $i in

valeriyvan

import Foundation
import CommonCrypto

extension Data {
    enum Algorithm {
        case md5
        case sha1
        case sha224
        case sha256
        case sha384

valeriyvan

import Foundation

// One drawback of using callbacks vs delegation in Swift - if method is used
// instead of closure for callback, retain cycle is created.
// And this retain cycle can't be broken with usual weak/unowned capture.

// In case of delegate everyone knows that delegate property should be weak,
// and linter enforces this.

// Callbacks are nice. But you can't enforce only closures to be used for callbacks.

valeriyvan

import Foundation

// Change making problem https://en.wikipedia.org/wiki/Change-making_problem.

// Solution for change-making problem (a.k.a. vending machine change problem).

// Greedy algorythm going from bigger denominations.
// Fails for changeGreedy(60, from: [50:10, 20:10])
// More tests on bottom.

valeriyvan

swift package generate-xcodeproj --xcconfig-overrides ./Sources/ios.xcconfig

valeriyvan

#!/usr/bin/swift
  
import Foundation

// Write a program that prints the numbers from 1 to 100. 
// But for multiples of three print ‘Fizz’ instead of the number and for the multiples of five print ‘Buzz’. 
// For numbers which are multiples of both three and five print ‘FizzBuzz’.

for i in 1...100 {
    switch i {

valeriyvan

# xcode-icon-tag.sh
# The MIT License (MIT)
#
# Copyright (c) <2015> <Valerio Mazzeo>
# Permission is hereby granted, free of charge, to any person obtaining a copy
#
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is

valeriyvan

#!/usr/bin/python

import pickle
from collections import defaultdict
from collections import OrderedDict
import sys

def checkDict(inputData):
    return (type(inputData) == dict or type(inputData) == defaultdict\
            or type(inputData) == OrderedDict)

valeriyvan

// Having array of coordinates you would like show on map you have calculate center and span for map.
// For that you need min/max latitude/longitude of coordinates.

let coordinates = [(CLLocationCoordinate2D(latitude:-40.0, longitude:38.2)),
                   (CLLocationCoordinate2D(latitude:44.2, longitude:17.833)),
                   (CLLocationCoordinate2D(latitude:5.22, longitude:154.2)),
                   (CLLocationCoordinate2D(latitude:33.2, longitude:9.2)),
                   (CLLocationCoordinate2D(latitude:4.2, longitude:3.2))]

// Lookup is done with one pass on array with only reduce

valeriyvan

//  http://en.wikipedia.org/wiki/Geographic_coordinate_conversion
//  43° 36' 15.894" N => 43.60442

#import "DMSToDecimal.h"

BOOL DMSToDecimal(NSString* dms, CLLocationDegrees *decimal) {
    CLLocationDegrees degres=0, minutes=0, seconds=0;
    NSScanner *scanner = [NSScanner scannerWithString:dms];
    scanner.charactersToBeSkipped = [NSCharacterSet whitespaceAndNewlineCharacterSet];
    if (![scanner scanDouble:&degres]) {