Revised exercises due to the changes of Zig version 0.11.0-dev.3853

exercises/016_for2.zig

@@ -29,7 +29,8 @@ pub fn main() void {
         // Note that we convert the usize i to a u32 with
         // @intCast(), a builtin function just like @import().
         // We'll learn about these properly in a later exercise.
-        const place_value = std.math.pow(u32, 2, @intCast(u32, i));
+        const i_u32: u32 = @intCast(i);
+        const place_value = std.math.pow(u32, 2, i_u32);
         value += place_value * bit;
     }