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+//
+// Quiz time! Let's see if you can fix this whole program.
+//
+// This is meant to be challenging.
+//
+// Let the compiler tell you what's wrong.
+//
+// Start at the top.
+//
+const std = @import("std");
+
+pub fn main() void {
+ // What is this nonsense? :-)
+ const letters = "YZhifg";
+
+ const x: u8 = 1;
+
+ // This is something you haven't seen before: declaring an array
+ // without putting anything in it. There is no error here:
+ var lang: [3]u8 = undefined;
+
+ // The following lines attempt to put 'Z', 'i', and 'g' into the
+ // 'lang' array we just created.
+ lang[0] = letters[x];
+
+ x = 3;
+ lang[???] = letters[x];
+
+ x = ???;
+ lang[2] = letters[???];
+
+ // We want to "Program in Zig!" of course:
+ std.debug.print("Program in {s}!\n", .{lang});
+}