Update README.md

Author: yanglbme

solution/0000-0099/0008.String to Integer (atoi)/README.md

@@ -214,6 +214,36 @@ class Solution {
 }
 ```
 
+#### C++
+
+```cpp
+class Solution {
+public:
+    int myAtoi(string s) {
+        int i = 0, n = s.size();
+        while (i < n && s[i] == ' ')
+            ++i;
+
+        int sign = 1;
+        if (i < n && (s[i] == '-' || s[i] == '+')) {
+            sign = s[i] == '-' ? -1 : 1;
+            ++i;
+        }
+
+        int res = 0;
+        while (i < n && isdigit(s[i])) {
+            int digit = s[i] - '0';
+            if (res > INT_MAX / 10 || (res == INT_MAX / 10 && digit > INT_MAX % 10)) {
+                return sign == 1 ? INT_MAX : INT_MIN;
+            }
+            res = res * 10 + digit;
+            ++i;
+        }
+        return res * sign;
+    }
+};
+```
+
 #### Go
 
 ```go
@@ -356,36 +386,6 @@ class Solution {
 }
 ```
 
-#### C++
-
-```c++
-class Solution {
-public:
-    int myAtoi(string s) {
-        int i = 0, n = s.size();
-        while (i < n && s[i] == ' ')
-            ++i;
-
-        int sign = 1;
-        if (i < n && (s[i] == '-' || s[i] == '+')) {
-            sign = s[i] == '-' ? -1 : 1;
-            ++i;
-        }
-
-        int res = 0;
-        while (i < n && isdigit(s[i])) {
-            int digit = s[i] - '0';
-            if (res > INT_MAX / 10 || (res == INT_MAX / 10 && digit > INT_MAX % 10)) {
-                return sign == 1 ? INT_MAX : INT_MIN;
-            }
-            res = res * 10 + digit;
-            ++i;
-        }
-        return res * sign;
-    }
-};
-```
-
 <!-- tabs:end -->
 
 <!-- solution:end -->