From abbcbe1ed0b52b7232957bf9152ad0e92104114d Mon Sep 17 00:00:00 2001
From: fw_qaq <fwqaaq@gmail.com>
Date: Mon, 10 Apr 2023 15:28:58 +0800
Subject: [PATCH 1/2] =?UTF-8?q?Update=200070.=E7=88=AC=E6=A5=BC=E6=A2=AF.m?=
 =?UTF-8?q?d?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 problems/0070.爬楼梯.md | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/problems/0070.爬楼梯.md b/problems/0070.爬楼梯.md
index a06ee91e..c46e3b46 100644
--- a/problems/0070.爬楼梯.md
+++ b/problems/0070.爬楼梯.md
@@ -470,6 +470,23 @@ impl Solution {
 }
 ```
 
+dp 数组
+
+```rust
+impl Solution {
+    pub fn climb_stairs(n: i32) -> i32 {
+        let n = n as usize;
+        let mut dp = vec![0; n + 1];
+        dp[0] = 1;
+        dp[1] = 1;
+        for i in 2..=n {
+            dp[i] = dp[i - 1] + dp[i - 2];
+        }
+        dp[n]
+    }
+}
+```
+
 <p align="center">
 <a href="https://programmercarl.com/other/kstar.html" target="_blank">
   <img src="../pics/网站星球宣传海报.jpg" width="1000"/>

From 03f037afebff9684e9d64283b1d8d5ec690e684a Mon Sep 17 00:00:00 2001
From: fw_qaq <fwqaaq@gmail.com>
Date: Mon, 10 Apr 2023 15:36:23 +0800
Subject: [PATCH 2/2] =?UTF-8?q?Update=200070.=E7=88=AC=E6=A5=BC=E6=A2=AF.m?=
 =?UTF-8?q?d?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 problems/0070.爬楼梯.md | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/problems/0070.爬楼梯.md b/problems/0070.爬楼梯.md
index c46e3b46..793d3e67 100644
--- a/problems/0070.爬楼梯.md
+++ b/problems/0070.爬楼梯.md
@@ -454,19 +454,16 @@ public class Solution {
 ```rust
 impl Solution {
     pub fn climb_stairs(n: i32) -> i32 {
-        if n <= 2 {
+        if n <= 1 {
             return n;
         }
-        let mut a = 1;
-        let mut b = 2;
-        let mut f = 0;
-        for i in 2..n {
+        let (mut a, mut b, mut f) = (1, 1, 0);
+        for _ in 2..=n {
             f = a + b;
             a = b;
             b = f;
         }
-        return f;
-    }
+        f
 }
 ```