Assume we are dealing with an environment which could only store integers within the 32-bit signed integer range: [−231, 231 − 1]. For the purpose of this problem, assume that your function returns 0 when the reversed integer overflows. 给出一个 32 位的有符号整数,你需要将这个整数中...
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? Throw an exception? Goo...
LeetCode 7 :Reverse Integer --- 反转int整数 原题链接: https://leetcode.com/problems/reverse-integer/ 一:原题内容 Reverse digits of an integer. Example1:x = 123, return 321 Example2:x = -123, return -321 二:分析理解 我们需要考虑反转后的数可能会溢出int给出的大小,而且...
Assume we are dealing with an environment which could only store integers within the 32-bit signed integer range: [−2^31, 2^31 − 1]. For the purpose of this problem, assume that your function returns 0 when the reversed integer overflows. 注意:假设我们正在处理一个只能在32位有符号整...
## 解法一:转换为字符串,要考虑溢出 ## 特殊的案例:< 2**31-1 class Solution: def reverse(self, x: int) -> int: if x>=0: ans = int(str(x)[::-1]) else: ans = -int( str(abs(x))[::-1] ) ## 不用用 -x? ## 考虑溢出 return ans if ans<2**31-1 and ans>=-2**31...
Leetcode合集 - JavaScript 查看更多 2020-04-23 罗马数字转整数 Roman to Integer 2020-03-04 回文数 Palindrome Number 2020-02-02 整数反转 Reverse Integer 2019-11-15 两数之和 Two Sum 2019-09-04 删除排序数组中的重复项 相关推荐 评论14 2251 2 2:31:34 剑指Offer | Javascript刷题 ...
陆陆续续在LeetCode上刷了一些题,一直没有记录过,准备集中整理记录一下 java:classSolution{publicint reverse(int x){long num=0;while(x!=0){num=num*10+x%10;x=x/10;}if(num>=Integer.MAX_VALUE||num<=Integer.MIN_VALUE){return0;}return(int)num;}}python:classSolution:defreverse(self,x):...
1. 输入:1234 输出:4321 2. 输入:-1234 输出:-4321 3. 输入:120 输出:21 注意:反转数字后的大小是否在int范围之内 Java解法一:我分成两种情况讨论,正负数,利用StringBuilder().reverse().toString()进行反转,再分别与Integer.MIN_VALUE/Integer.MAX_VALUE比较,符合返回结果值,不符合返回0 ...
leetcode——Reverse Integer 前言 leetcode的刷题记录,整理思路和一些理论细节。 Question 给出一个32比特大小的整数,对其逆序。 Example 1: Input: 123 Output: 321 Example 2: Input: -123 Output: -321 Example 3: Input: 120 Output: 21 Note:...
Code C 栈 1 343 0hteason ・ 2020.01.29 Java纯数组和栈两种实现:简洁 均击败99%,都很容易理解! 其他Java相关优化操作: 数组最大长度为tokens.length / 2 + 1 switch代替if-else,效率优化 Integer.parseInt代替Integer.valueOf,减少自动拆箱装箱操作 附两种方法:纯数组模拟栈实现(推荐):栈实现: 栈 Java ...