From e36c15a01cf93e4ea2d30545c485f6c6969650aa Mon Sep 17 00:00:00 2001
From: sss1h <49825610+sss1h@users.noreply.github.com>
Date: Thu, 11 Jan 2024 21:43:31 +0800
Subject: [PATCH] =?UTF-8?q?Update=20kama54.=E6=9B=BF=E6=8D=A2=E6=95=B0?=
 =?UTF-8?q?=E5=AD=97.md?=
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---
 problems/kama54.替换数字.md | 32 ++++++++++++++++----------------
 1 file changed, 16 insertions(+), 16 deletions(-)

diff --git a/problems/kama54.替换数字.md b/problems/kama54.替换数字.md
index 2b3d53de..f5e30a70 100644
--- a/problems/kama54.替换数字.md
+++ b/problems/kama54.替换数字.md
@@ -56,36 +56,36 @@
 C++代码如下：
 
 ```CPP
-#include<iostream>
+#include <iostream>
 using namespace std;
 int main() {
     string s;
     while (cin >> s) {
+        int sOldIndex = s.size() - 1;
         int count = 0; // 统计数字的个数
-        int sOldSize = s.size();
         for (int i = 0; i < s.size(); i++) {
             if (s[i] >= '0' && s[i] <= '9') {
                 count++;
             }
         }
-        // 扩充字符串s的大小，也就是每个空格替换成"number"之后的大小
+        // 扩充字符串s的大小，也就是将每个数字替换成"number"之后的大小
         s.resize(s.size() + count * 5);
-        int sNewSize = s.size();
-        // 从后先前将空格替换为"number"
-        for (int i = sNewSize - 1, j = sOldSize - 1; j < i; i--, j--) {
-            if (s[j] > '9' || s[j] < '0') {
-                s[i] = s[j];
+        int sNewIndex = s.size() - 1;
+        // 从后往前将数字替换为"number"
+        while (sOldIndex >= 0) {
+            if (s[sOldIndex] >= '0' && s[sOldIndex] <= '9') {
+                s[sNewIndex--] = 'r';
+                s[sNewIndex--] = 'e';
+                s[sNewIndex--] = 'b';
+                s[sNewIndex--] = 'm';
+                s[sNewIndex--] = 'u';
+                s[sNewIndex--] = 'n';
             } else {
-                s[i] = 'r';
-                s[i - 1] = 'e';
-                s[i - 2] = 'b';
-                s[i - 3] = 'm';
-                s[i - 4] = 'u';
-                s[i - 5] = 'n';
-                i -= 5;
+                s[sNewIndex--] = s[sOldIndex];
             }
+            sOldIndex--;
         }
-        cout << s << endl;
+        cout << s << endl;       
     }
 }