diff options
author | Jack Sangdahl <[email protected]> | 2025-03-10 00:36:13 -0600 |
---|---|---|
committer | Jack Sangdahl <[email protected]> | 2025-03-10 00:36:13 -0600 |
commit | 7c60dee83b436e8e8a667bf9f191beced8de4fc3 (patch) | |
tree | eb7a24ee2067f92245c57bb118e85a1baf15df50 /other/delete_middle_node.rs | |
parent | 5d7cdc215e4ba1ec4cbb24c084cccb5e5e641468 (diff) | |
download | leetcode-7c60dee83b436e8e8a667bf9f191beced8de4fc3.tar.gz leetcode-7c60dee83b436e8e8a667bf9f191beced8de4fc3.zip |
chore: move cpp and rust code to directory
Diffstat (limited to 'other/delete_middle_node.rs')
-rw-r--r-- | other/delete_middle_node.rs | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/other/delete_middle_node.rs b/other/delete_middle_node.rs new file mode 100644 index 0000000..289d8dd --- /dev/null +++ b/other/delete_middle_node.rs @@ -0,0 +1,52 @@ +pub struct Solution; +pub struct ListNode { + pub val: i32, + pub next: Option<Box<ListNode>> +} + +impl ListNode { + #[inline] + fn new(val: i32) -> self { + ListNode { + next: None, + val + } + } +} + +impl Solution { + pub fn delete_middle(head: Option<Box<ListNode>>) -> Option<Box<ListNode>> { + let mut slowPtr = &head; + let mut fastPtr = &head; + let mut fakeHead = Box::new(ListNode::new(-1)); + let mut fakeTmp = &mut *fakeHead as *mut ListNode; + let mut slowPrevPtr = &mut *fakeHead as *mut ListNode; + while fastPtr.is_some() && (fastPtr).as_ref().unwrap().next.is_some() { + unsafe { + let mut next = Box::new(ListNode::new((slowPtr).as_ref().unwrap().val)); + let nextPtr = &mut *next as *mut ListNode; + (*fakeTmp).next = Some(next); + slowPrevPtr = fakeTmp; + fakeTmp = nextPtr; + slowPtr = &(slowPtr).as_ref().unwrap().next; + fastPtr = &(fastPtr).as_ref().unwrap().next; + if fastPtr.is_some() { + fastPtr = &(fastPtr).as_ref().unwrap().next; + } + } + } + slowPtr = &(slowPtr).as_ref().unwrap().next; + while slowPtr.is_some() { + unsafe { + let mut next = Box::new(ListNode::new((slowPtr).as_ref().unwrap().val)); + let nextPtr = &mut *next as *mut ListNode; + (*fakeTmp).next = Some(next); + fakeTmp = nextPtr; + slowPtr = &(slowPtr).as_ref().unwrap().next; + } + } + fakeHead.next + } +} + +fn main() {} |