move

1 files changed, 49 insertions, 0 deletions

diff --git a/rust/src/bin/p0002.rs b/rust/src/bin/p0002.rs
new file mode 100644
index 0000000..d8acf94
--- /dev/null
+++ b/rust/src/bin/p0002.rs
@@ -0,0 +1,49 @@
+use leetcode::list::*;
+
+struct Solution {}
+
+impl Solution {
+    pub fn add_two_numbers(l1: Option<Box<ListNode>>, l2: Option<Box<ListNode>>) -> Option<Box<ListNode>> {
+        let mut result: Option<Box<ListNode>> = None;
+        let mut cur1 = &l1;
+        let mut cur2 = &l2;
+        let mut carry: i32 = 0;
+        {
+            let mut cur_res = &mut result;
+            loop {
+                if *cur1 == None && *cur2 == None && carry == 0 {
+                    break;
+                } else {
+                    let n1 = match cur1 {
+                        Some(node) => {
+                            cur1 = &cur1.as_ref().unwrap().next;
+                            node.val
+                        },
+                        None => 0
+                    };
+                    let n2 = match cur2 {
+                        Some(node) => {
+                            cur2 = &cur2.as_ref().unwrap().next;
+                            node.val
+                        },
+                        None => 0
+                    };
+                    let n = (n1 + n2 + carry) % 10;
+                    carry = if (n1 + n2 + carry) >= 10 { 1 } else { 0 };
+                    *cur_res = Some(Box::new(ListNode::new(n)));
+                    cur_res = &mut cur_res.as_mut().unwrap().next;
+                    continue;
+                }
+            }
+        }
+        result
+    }
+}
+
+fn test(l1: Vec<i32>, l2: Vec<i32>) -> Vec<i32> {
+    list2vector(Solution::add_two_numbers(vector2list(l1), vector2list(l2)))
+}
+
+fn main() {
+    println!("{:?}", test(vec![1,2,3], vec![4,5,6]));
+}