From f27ffe540a6a58cf5fff589e8a22bfd5642cca8e Mon Sep 17 00:00:00 2001
From: zongzi531 <zongzi.xy@gmail.com>
Date: Wed, 13 Apr 2022 13:34:14 +0800
Subject: [PATCH] feat: add variables solutions

---
 solutions/variables.md | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/solutions/variables.md b/solutions/variables.md
index 3c80ee1..4d53b79 100644
--- a/solutions/variables.md
+++ b/solutions/variables.md
@@ -42,6 +42,18 @@ fn define_x() -> String {
 }
 ```
 
+```rust
+fn main() {
+    let x = define_x();
+    println!("{:?}, world", x); 
+}
+
+fn define_x() -> &'static str {
+    let x = "hello";
+    x
+}
+```
+
 5.
 ```rust
 fn main() {