004

exercises/004_arrays.zig

@@ -23,30 +23,31 @@
 //
 const std = @import("std");
 
-pub fn main() void {
-    // (Problem 1)
-    // This "const" is going to cause a problem later - can you see what it is?
-    // How do we fix it?
-    const some_primes = [_]u8{ 1, 3, 5, 7, 11, 13, 17, 19 };
-
-    // Individual values can be set with '[]' notation.
-    // Example: This line changes the first prime to 2 (which is correct):
-    some_primes[0] = 2;
-
-    // Individual values can also be accessed with '[]' notation.
-    // Example: This line stores the first prime in "first":
-    const first = some_primes[0];
-
-    // (Problem 2)
-    // Looks like we need to complete this expression. Use the example
-    // above to set "fourth" to the fourth element of the some_primes array:
-    const fourth = some_primes[???];
-
-    // (Problem 3)
-    // Use the len property to get the length of the array:
-    const length = some_primes.???;
-
-    std.debug.print("First: {}, Fourth: {}, Length: {}\n", .{
-        first, fourth, length,
-    });
+pub fn main() void{
+  // (Problem 1)
+  // This "const" is going to cause a problem later - can you see what it is?
+  // How do we fix it?
+  var some_primes = [_]u8{ 1, 3, 5, 7, 11, 13, 17, 19 };
+  
+  // Individual values can be set with '[]' notation.
+  // Example: This line changes the first prime to 2 (which is correct):
+  some_primes[0] = 2;
+  
+  // Individual values can also be accessed with '[]' notation.
+  // Example: This line stores the first prime in "first":
+  const first = some_primes[0];
+  
+  // (Problem 2)
+  // Looks like we need to complete this expression. Use the example
+  // above to set "fourth" to the fourth element of the some_primes array:
+  const fourth = some_primes[3];
+  
+  // (Problem 3)
+  // Use the len property to get the length of the array:
+  const length = some_primes.len;
+  
+  std.debug.print("First: {}, Fourth: {}, Length: {}\n", .{
+    first, fourth, length,
+  });
 }
+