From 31dfca184b56926c5c53805d28068efb0986e189 Mon Sep 17 00:00:00 2001
From: YiChih Wang <andywang0607@gmail.com>
Date: Thu, 26 Aug 2021 20:32:58 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=AD=A30027.=E7=A7=BB=E9=99=A4?=
 =?UTF-8?q?=E5=85=83=E7=B4=A0Rust=E8=AA=9E=E8=A8=80=E7=89=88=E6=9C=AC?=
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1. 根據題目須回傳i32而非&mut Vec<i32>
2. 改以Owner介紹的雙指針法解題
---
 problems/0027.移除元素.md | 20 +++++++++-----------
 1 file changed, 9 insertions(+), 11 deletions(-)

diff --git a/problems/0027.移除元素.md b/problems/0027.移除元素.md
index fadd4d7e..dc913494 100644
--- a/problems/0027.移除元素.md
+++ b/problems/0027.移除元素.md
@@ -201,19 +201,17 @@ end
 ```
 Rust:
 ```rust
-pub fn remove_element(nums: &mut Vec<i32>, val: i32) -> &mut Vec<i32> {
-    let mut start: usize = 0;
-    while start < nums.len() {
-        if nums[start] == val {
-            nums.remove(start);
+impl Solution {
+    pub fn remove_element(nums: &mut Vec<i32>, val: i32) -> i32 {
+        let mut slowIdx = 0;
+        for pos in (0..nums.len()) {
+            if nums[pos]!=val {
+                nums[slowIdx] = nums[pos];
+                slowIdx += 1;
+            }
         }
-        start += 1;
+        return (slowIdx) as i32;
     }
-    nums
-}
-fn main() {
-    let mut nums = vec![5,1,3,5,2,3,4,1];
-    println!("{:?}",remove_element(&mut nums, 5));
 }
 ```