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[Rust] make rust part more idomatic and fix panic of backtrack template (#1370)

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* Drop unused variable

* Idiomatic rust

* Fix panic template
This commit is contained in:
rongyi
2024-05-24 16:21:17 +08:00
committed by GitHub
parent aa818945f0
commit 63bcdb798a
5 changed files with 27 additions and 28 deletions
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codes/rust/chapter_backtracking/preorder_traversal_i_compact.rs
+4 -4
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@@ -10,7 +10,7 @@ use std::{cell::RefCell, rc::Rc};
use tree_node::{vec_to_tree, TreeNode};
/* 前序遍历：例题一 */
fn pre_order(res: &mut Vec<Rc<RefCell<TreeNode>>>, root: Option<Rc<RefCell<TreeNode>>>) {
fn pre_order(res: &mut Vec<Rc<RefCell<TreeNode>>>, root: Option<&Rc<RefCell<TreeNode>>>) {
if root.is_none() {
return;
}
@@ -19,8 +19,8 @@ fn pre_order(res: &mut Vec<Rc<RefCell<TreeNode>>>, root: Option<Rc<RefCell<TreeN
// 记录解
res.push(node.clone());
}
pre_order(res, node.borrow().left.clone());
pre_order(res, node.borrow().right.clone());
pre_order(res, node.borrow().left.as_ref());
pre_order(res, node.borrow().right.as_ref());
}
}
@@ -32,7 +32,7 @@ pub fn main() {
// 前序遍历
let mut res = Vec::new();
pre_order(&mut res, root);
pre_order(&mut res, root.as_ref());
println!("\n输出所有值为 7 的节点");
let mut vals = Vec::new();