Moved exercises to exercises because exercises

32_unreachable.zig

@@ -1,38 +0,0 @@
-//
-// Zig has an "unreachable" statement. Use it when you want to tell the
-// compiler that a branch of code should never be executed and that the
-// mere act of reaching it is an error.
-//
-//     if (true) {
-//         ...
-//     } else {
-//         unreachable;
-//     }
-//
-// Here we've made a little virtual machine that performs mathematical
-// operations on a single numeric value. It looks great but there's one
-// little problem: the switch statement doesn't cover every possible
-// value of a u8 number!
-//
-// WE know there are only three operations but Zig doesn't. Use the
-// unreachable statement to make the switch complete. Or ELSE. :-)
-// 
-const std = @import("std");
-
-pub fn main() void {
-    const operations = [_]u8{ 1, 1, 1, 3, 2, 2 };
-
-    var current_value: u32 = 0;
-
-    for (operations) |op| {
-        switch (op) {
-            1  => { current_value += 1; },
-            2  => { current_value -= 1; },
-            3  => { current_value *= current_value; },
-        }
-
-        std.debug.print("{} ", .{current_value});
-    }
-
-    std.debug.print("\n", .{});
-}