This wil crash on passing 0

Functions With an Implicit Return
search here - https://docs.swift.org/swift-book/LanguageGuide/Functions.html

Where "return"? How it work?

Thank you so much brother

Sure thing! This is the Ternary Operator, it's basically a single line if condition. The question mark asks whatever is on it's left if it's true or false. It then tells the colon to pick whatever is to it's left if the condition is true, or to it's right if the condition is false

You should take a look at the official Swift documentation https://docs.swift.org/swift-book/LanguageGuide/BasicOperators.html. You can search for Ternary and you'll find whatever you're looking for

hey could someone explain this code to me please

nice, and here I am hardcoded the whole thing xD

Lovely <3 gg wp

For Swift

let longRoutes = [["San Policarpo", "Oras"], ["Balangiga", "Lawaan"], ["Borongan", "Maydolong"], ["Jipapad", "Maslog"], ["Balangkayan", "Llorente"], ["Mercedes", "Guiuan"], ["Taft", "Sulat"], ["Sulat", "San Julian"], ["Arteche", "San Policarpo"], ["Oras", "Dolores"], ["Dolores", "Can-avid"], ["Can-avid", "Taft"], ["San Julian", "Borongan"], ["Maydolong", "Balangkayan"], ["Llorente", "Hernani"], ["Hernani", "General MacArthur"], ["General MacArthur", "Giporlos"], ["Giporlos", "Balangiga"], ["Lawaan", "Salcedo"], ["Salcedo", "Mercedes"], ["Maslog", "Arteche"]]

XCTAssertEqual(findRoutes(routes: longRoutes), "Jipapad, Maslog, Arteche, San Policarpo, Oras, Dolores, Can-avid, Taft, Sulat, San Julian, Borongan, Maydolong, Balangkayan, Llorente, Hernani, General MacArthur, Giporlos, Balangiga, Lawaan, Salcedo, Mercedes, Guiuan")