From fb53c164a8eda11c1d87d4a15064e275aa0cfc48 Mon Sep 17 00:00:00 2001
From: li-chx <lchx751176501@gmail.com>
Date: Thu, 31 Jul 2025 11:47:40 +0800
Subject: [PATCH] =?UTF-8?q?2683.=20=E7=9B=B8=E9=82=BB=E5=80=BC=E7=9A=84?=
 =?UTF-8?q?=E6=8C=89=E4=BD=8D=E5=BC=82=E6=88=96?=
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---
 src/main.rs | 33 ++++++++-------------------------
 1 file changed, 8 insertions(+), 25 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index efcba29..e09a05a 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -2,35 +2,18 @@ use std::cmp::max;
 
 struct Solution;
 impl Solution {
-    pub fn longest_subarray(nums: Vec<i32>) -> i32 {
-        let mut ans = 0;
-        let mut ans_val = 0;
-        let mut last = 0;
-        let mut count = 0;
-        for i in 0..nums.len() {
-            if nums[i] != last {
-                if ans_val < last {
-                    ans_val = last;
-                    ans = count;
-                }else if ans_val == last {
-                    ans = max(count,ans);
-                }
-                last = nums[i];
-                count = 1;
-            } else {
-                count += 1;
-            }
+    pub fn does_valid_array_exist(derived: Vec<i32>) -> bool {
+        let mut a = 0;
+        let mut b = 1;
+        for i in derived.iter() {
+            a ^= i;
+            b ^= i;
         }
-        if ans_val < last {
-            ans = count;
-        }else if ans_val == last {
-            ans = max(count,ans);
-        }
-        ans
+        a == 0 || b == 1
     }
 }
 
 fn main() {
-    let sl = Solution::longest_subarray(vec![96317,96317,96317,96317,96317,96317,96317,96317,96317,279979]);
+    let sl = Solution::does_valid_array_exist(vec![1,1,0]);
     println!("{:?}", sl);
 }