个人觉得,第二种方法是最容易想到的,因为List中的reverse方法比较常用,做LeetCode题目7. Reverse Integer也用了这种方法,程序耗时65ms #字符串的反转#用到for循环的步长参数,从大到小循环,到0为止defreverse1 (s): rt=''foriinrange(len(s)-1, -1, -1): rt+=s[i]returnrt#用到list的反转函数reverse...
解法1:字符串反转 ## 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...
Reverse digits of an integer. Example1: x = 123,return321 Example2: x = -123,return-321 Note: The input is assumed to be a 32-bit signed integer. Your function should return 0 when the reversed integer overflows. 这道题要求输入123返回321 输入-123返回-321 考虑32位有符号整型,溢出返回0...
AI代码解释 classSolution{publicintreverse(int x){int rev=0;while(x!=0){int pop=x%10;x/=10;if(rev>Integer.MAX_VALUE/10||(rev==Integer.MAX_VALUE/10&&pop>7))return0;if(rev<Integer.MIN_VALUE/10||(rev==Integer.MIN_VALUE/10&&pop<-8))return0;rev=rev*10+pop;}returnrev;}} Pytho...
This Blog provides a comprehensive guide to creating prime numbers, perfect numbers, and reverse numbers in Python. Learn More about Python Numbers!
Reverse Integer https://leetcode.com/problems/reverse-integer/?tab=Description Reverse digits of an integer. Example1: x = 123, return 321 Example2: x = -123, return -321 这题如果是我想的话,肯定会想把它转换成数组然后首位往中间逼近着换位。。program cr......
[Leetcode][python]Reverse Integer/反转整数 题目大意 反转整数123变为321,-123变为-321 注意:在32位整数范围内,并且001要成为1 假设我们的环境只能存储 32 位有符号整数,其数值范围是 [−2^31, 2^31 − 1]。根据这个假设,如果反转后的整数溢出,则返回 0。
# Python program to define an# integer value and print it# declare and assign an integer valuenum=10# print numprint"num =",num# print using formatprint"num = {0}".format(num)# assign another valuenum=100# print numprint"num =",num# print using formatprint"num = {0}".format(num...
The most simple way to reverse a number in Python is to convert it to a string, reverse the string, and convert it back to an integer: def reverse_number_string_method(number): """ Reverse a number using string conversion. Args: ...
Write a Python program to reverse a string. Sample String:"1234abcd" Expected Output:"dcba4321" Sample Solution-1: Python Code: # Define a function named 'string_reverse' that takes a string 'str1' as inputdefstring_reverse(str1):# Initialize an empty string 'rstr1' to store the reve...