# 7、LeetCode 题解 - String to Integer (atoi)（转换到整型）

#### 翻译 #### 原文 Reverse digits of an integer. Example1: x = 123, return 321
Example2: x = -123, return -321

Here are some good questions to ask before coding.
Bonus points for you if you have already thought through this! If the integer's last digit is 0, what should the output be?
ie, cases such as 10, 100.

Did you notice that the reversed integer might overflow?
Assume the input is a 32-bit integer, then the reverse of 1000000003 overflows.
How should you handle such cases?

For the purpose of this problem,
assume that your function returns 0 when the reversed integer overflows. Update (2014-11-10):

#### C ```public class Solution
{
public int Reverse(int x)
{
try
{
string str = Math.Abs(x).ToString();
string newStr = (x < 0) ? "-" : "";
for (int i = str.Length - 1; i >= 0; i--)
{
newStr += str[i];
}
return int.Parse(newStr);
}
catch (Exception e)
{
return 0;
}
}
}```

#### C++（来源于网络） ```class Solution {
public:
int reverse(int x) {
int res = 0;
while(x!=0){
if(res>INT_MAX/10||res<INT_MIN/10){
return 0;
}
res = res*10 + x%10;
x = x/10;
}
return res;
}
};``` ### 最新文章

##### 2021-12-06

WebRTC本地分享屏幕，录制屏幕

Kubernetes-存储(一)

### 热门文章

##### 2019-07-03

83、Go Web 编程 - 13.2 自定义路由器设计

C++树——遍历二叉树

vue基础指令

ElasticSearch 进阶

turtle八角图形绘制