primitive_types4 solution

exercises/04_primitive_types/primitive_types3.rs

@@ -1,5 +1,5 @@
 fn main() {
-    // TODO: Create an array with at least 100 elements in it where the ??? is.
+    // TODO: Create an array called `a` with at least 100 elements in it.
     // let a = ???
 
     if a.len() >= 100 {

exercises/04_primitive_types/primitive_types4.rs

@@ -1,18 +1,15 @@
-// Get a slice out of Array a where the ??? is so that the test passes.
-
 fn main() {
     // You can optionally experiment here.
 }
 
 #[cfg(test)]
 mod tests {
-    use super::*;
-
     #[test]
     fn slice_out_of_array() {
         let a = [1, 2, 3, 4, 5];
 
-        let nice_slice = ???
+        // TODO: Get a slice called `nice_slice` out of the array `a` so that the test passes.
+        // let nice_slice = ???
 
         assert_eq!([2, 3, 4], nice_slice);
     }