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Update 0617.合并二叉树.md
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@ -691,6 +691,35 @@ object Solution {
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}
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}
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```
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```
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### rust
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递归:
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```rust
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use std::cell::RefCell;
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use std::rc::Rc;
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impl Solution {
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pub fn merge_trees(
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root1: Option<Rc<RefCell<TreeNode>>>,
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root2: Option<Rc<RefCell<TreeNode>>>,
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) -> Option<Rc<RefCell<TreeNode>>> {
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if root1.is_none() {
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return root2;
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}
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if root2.is_none() {
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return root1;
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}
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let binding = root1.clone();
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let mut node1 = binding.as_ref().unwrap().borrow_mut();
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let node2 = root2.as_ref().unwrap().borrow_mut();
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node1.left = Self::merge_trees(node1.left.clone(), node2.left.clone());
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node1.right = Self::merge_trees(node1.right.clone(), node2.right.clone());
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node1.val += node2.val;
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root1
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}
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}
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```
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<p align="center">
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<p align="center">
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<a href="https://programmercarl.com/other/kstar.html" target="_blank">
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<a href="https://programmercarl.com/other/kstar.html" target="_blank">
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