From 6af02057b674d64c19c733c490ae9090e30e498e Mon Sep 17 00:00:00 2001
From: fw_qaq <fwqaaq@gmail.com>
Date: Fri, 31 Mar 2023 18:04:59 +0800
Subject: [PATCH] =?UTF-8?q?Update=200435.=E6=97=A0=E9=87=8D=E5=8F=A0?=
 =?UTF-8?q?=E5=8C=BA=E9=97=B4.md?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 problems/0435.无重叠区间.md | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/problems/0435.无重叠区间.md b/problems/0435.无重叠区间.md
index 02db2034..37ef819d 100644
--- a/problems/0435.无重叠区间.md
+++ b/problems/0435.无重叠区间.md
@@ -399,18 +399,20 @@ object Solution {
 ```Rust
 impl Solution {
     pub fn erase_overlap_intervals(intervals: Vec<Vec<i32>>) -> i32 {
-        if intervals.len() == 0 { return 0; }
-        let mut intervals = intervals;
-        intervals.sort_by(|a, b| a[1].cmp(&b[1]));
+        if intervals.is_empty() {
+            return 0;
+        }
+        intervals.sort_by_key(|interval| interval[1]);
         let mut count = 1;
         let mut end = intervals[0][1];
-        for i in 1..intervals.len() {
-            if end <= intervals[i][0] {
-                end = intervals[i][1];
+        for v in intervals.iter().skip(1) {
+            if end <= v[0] {
+                end = v[1];
                 count += 1;
             }
         }
-        intervals.len() as i32 - count
+
+        (intervals.len() - count) as i32
     }
 }
 ```