#!/usr/bin/env swift;
/******************************************************************************
 * This program checks a traingle to see if it is a right triangle.
 * 
 * Copyright © 2020 Richard Lesh.  All rights reserved.
 *****************************************************************************/

import Foundation
import Utils

func main() -> Void {
    let HYPOTENUSE_STR:String = Utils.prompt("Hypotenuse: ")
    let LEG1_STR:String = Utils.prompt("Leg #1: ")
    let LEG2_STR:String = Utils.prompt("Leg #2: ")
    let HYPOTENUSE:Double = Double(HYPOTENUSE_STR) ?? 0.0
    let LEG1:Double = Double(LEG1_STR) ?? 0.0
    let LEG2:Double = Double(LEG2_STR) ?? 0.0

    let IS_RIGHT_TRIANGLE:Bool = HYPOTENUSE * HYPOTENUSE == LEG1 * LEG1 + LEG2 * LEG2
    print("Triangle is " + (IS_RIGHT_TRIANGLE ? "" : "NOT ") + "a right triangle!")
    exit(EXIT_SUCCESS)
}
main()