020

exercises/020_quiz3.zig

@@ -7,11 +7,11 @@
 //
 const std = @import("std");
 
-pub fn main() void {
-    const my_numbers = [4]u16{ 5, 6, 7, 8 };
-
-    printPowersOfTwo(my_numbers);
-    std.debug.print("\n", .{});
+pub fn main() void{
+  const my_numbers = [4]u16{ 5, 6, 7, 8 };
+  
+  _ = printPowersOfTwo(my_numbers);
+  std.debug.print("\n", .{});
 }
 
 // You won't see this every day: a function that takes an array with
@@ -21,23 +21,24 @@ pub fn main() void {
 //
 // This function prints, but does not return anything.
 //
-fn printPowersOfTwo(numbers: [4]u16) ??? {
-    loop (numbers) |n| {
-        std.debug.print("{} ", .{twoToThe(n)});
-    }
+fn printPowersOfTwo(numbers: [4]u16) void{
+  for(numbers) |n|{
+    std.debug.print("{} ", .{ twoToThe(n) });
+  }
 }
 
 // This function bears a striking resemblance to twoToThe() in the last
 // exercise. But don't be fooled! This one does the math without the aid
 // of the standard library!
 //
-fn twoToThe(number: u16) ??? {
-    var n: u16 = 0;
-    var total: u16 = 1;
-
-    loop (n < number) : (n += 1) {
-        total *= 2;
-    }
-
-    return ???;
+fn twoToThe(number: u16) u16{
+  var n: u16 = 0;
+  var total: u16 = 1;
+  
+  while(n < number) : (n += 1){
+    total *= 2;
+  }
+  
+  return total;
 }
+