vecs1 solution

solutions/05_vecs/vecs1.rs

@@ -1 +1,23 @@
-// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
+fn array_and_vec() -> ([i32; 4], Vec<i32>) {
+    let a = [10, 20, 30, 40]; // Array
+
+    // Used the `vec!` macro.
+    let v = vec![10, 20, 30, 40];
+
+    (a, v)
+}
+
+fn main() {
+    // You can optionally experiment here.
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_array_and_vec_similarity() {
+        let (a, v) = array_and_vec();
+        assert_eq!(a, *v);
+    }
+}