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//1
func distance(ax : Int, ay : Int, bx :Int, by :Int)-> Float {
    
    let a = pow(Float(bx-ax), 2)
    let b = pow(Float(by-ay), 2)
    let sol2 : Float = a + b
    return sol2.squareRoot()
    
}
print(distance(ax: 1, ay: 1, bx: 5, by: 6))

Zedd0202

//
//  main.swift
//  Misson
//
//  Created by woowabrothers on 2017. 7. 10..
//  Copyright © 2017년 woowabrothers. All rights reserved.
//

import Foundation

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//
//  MyCalender.swift
//  date
//
//  Created by woowabrothers on 2017. 7. 11..
//  Copyright © 2017년 woowabrothers. All rights reserved.
//

import Foundation

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import UIKit
import AVFoundation

class ViewController: UIViewController {
    
    override func viewDidLoad() {
        super.viewDidLoad()
        addSwipe()
    }
    func addSwipe() {

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import UIKit
import Foundation
import SlackKit

class LonelyWolf {
    
    let bot: SlackKit
    
    init(token: String) {
        bot = SlackKit()

Zedd0202

1. Xcode 10.2로 프로젝트 생성 -> Xcode 10.2로 빌드 -> 12.2 디바이스 
= 1.9MB

  1) Xcode 10.2로 프로젝트 생성 -> Xcode 10.2로 빌드 -> 13.0 디바이스 
      = 못돌림

2. Xcode 10.2로 프로젝트 생성 -> Xcode 11 (Beta Seed 1)로 빌드 -> 12.2 디바이스 
= 1.9MB

3. Xcode 10.2로 프로젝트 생성 -> Xcode 11 (Beta Seed 1)로 빌드 -> 13.0 디바이스

Zedd0202

package main

import (
	"fmt"
	"log"
	"net/http"
	"net/http/httputil"
)

func handler(w http.ResponseWriter, r *http.Request) {

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class GradientCircle: UIView, CAAnimationDelegate {
    
    let gradientLayer: CAGradientLayer = CAGradientLayer()
    
    var startAngle: CGFloat = (-(.pi) / 2)
    var endAngle: CGFloat = 3 * ((.pi) / 2)
    
    override func draw(_ rect: CGRect) {
                
        let center = CGPoint(x: rect.midX, y: rect.midY)

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let albums = PHAssetCollection.fetchAssetCollections(with: .smartAlbum, subtype: .any, options: nil) // system 앨범
let albums2 = PHAssetCollection.fetchAssetCollections(with: .album, subtype: .any, options: nil) // 사용자가 만든? 앨범

albums.enumerateObjects { (collection, _, _) in
    let title = collection.localizedTitle
    let count = PHAsset.fetchAssets(in: collection, options: nil).count
    print(title, count)
}

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extension UIImage {
    
    func applyBlur_usingClamp(radius: CGFloat) -> UIImage {
        let context = CIContext()
        guard let ciImage = CIImage(image: self),
              let clampFilter = CIFilter(name: "CIAffineClamp"),
              let blurFilter = CIFilter(name: "CIGaussianBlur") else {
            return self
        }