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-rw-r--r--other/bt_max_path_sum.rs38
1 files changed, 0 insertions, 38 deletions
diff --git a/other/bt_max_path_sum.rs b/other/bt_max_path_sum.rs
deleted file mode 100644
index b0cb984..0000000
--- a/other/bt_max_path_sum.rs
+++ /dev/null
@@ -1,38 +0,0 @@
-#[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::rc::Rc;
-use std::cell::RefCell;
-impl Solution {
- pub fn max_path_sum(root: Option<Rc<RefCell<TreeNode>>>) -> i32 {
- let mut ans = std::i32::MIN;
- Solution::dfs(&root, &mut ans);
- ans
- }
- fn dfs(node: &Option<Rc<RefCell<TreeNode>>>, ans: &mut i32) -> i32 {
- if let Some(n) = node {
- let val = n.borrow().val;
- let l = std::cmp::max(0, Solution::dfs(&n.borrow().left, ans));
- let r = std::cmp::max(0, Solution::dfs(&n.borrow().right, ans));
- *ans = std::cmp::max(*ans, val + l + r);
- val + std::cmp::max(l, r)
- } else {
- 0
- }
- }
-}