Moved exercises to exercises because exercises

10_if2.zig

@@ -1,25 +0,0 @@
-//
-// If statements are also valid expressions:
-//
-//     var foo: u8 = if (a) 2 else 3;
-//
-// Note: You'll need to declare a variable type when assigning a value
-// from a statement like this because the compiler isn't smart enough
-// to infer the type for you.
-//
-// This WON'T work:
-//
-//     var foo = if (a) 2 else 3; // error!
-//
-const std = @import("std");
-
-pub fn main() void {
-    var discount = true;
-
-    // Please use an if...else expression to set "price".
-    // If discount is true, the price should be $17, otherwise $20:
-    var price = if ???;
-
-    std.debug.print("With the discount, the price is ${}.\n", .{price});
-}
-