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Solution.rs
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// 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
// }
// }
// }
use std::cell::RefCell;
use std::rc::Rc;
impl Solution {
pub fn evaluate_tree(root: Option<Rc<RefCell<TreeNode>>>) -> bool {
match root {
Some(node) => {
let node = node.borrow();
if node.left.is_none() {
return node.val == 1;
}
if node.val == 2 {
return Self::evaluate_tree(node.left.clone())
|| Self::evaluate_tree(node.right.clone());
}
Self::evaluate_tree(node.left.clone()) && Self::evaluate_tree(node.right.clone())
}
None => false,
}
}
}