Startet på 101

symmetric-tree-101/Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "symmetric-tree-101"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

symmetric-tree-101/src/main.rs

@@ -0,0 +1,33 @@
+// Definition for a binary tree node.
+ #[derive(Debug, PartialEq, Eq)]
+ pub struct TreeNode {
+   pub val: i32,
+   pub left: Option<Rc<RefCell<TreeNode>>>,
+   pub right: Option<Rc<RefCell<TreeNode>>>,
+ }
+ 
+ impl TreeNode {
+   #[inline]
+   pub fn new(val: i32) -> Self {
+     TreeNode {
+       val,
+       left: None,
+       right: None
+     }
+   }
+ }
+
+
+struct Solution{}
+
+use std::rc::Rc;
+use std::cell::RefCell;
+impl Solution {
+    pub fn is_symmetric(root: Option<Rc<RefCell<TreeNode>>>) -> bool {
+        
+    }
+}
+
+fn main() {
+    println!("Hello, world!");
+}