String to Integer (atoi) Implement atoi to convert a string to an integer. Hint: Carefully consider all possible input cases. If you want a challenge, please do not see below and ask yourself what are the possible input cases. Notes: It is intended f…

8. String to Integer (atoi) Total Accepted: 112863 Total Submissions: 825433 Difficulty: Easy Implement atoi to convert a string to an integer. Hint: Carefully consider all possible input cases. If you want a challenge, please do not see below and as…

7 - Reverse digits of an integer. Example1: x = 123, return 321Example2: x = -123, return -321 Notice: 1.If the integer's last digit is 0, what should the output be? ie, cases such as 10, 100. 2.Did you notice that the reversed integer might overflow…

String to Integer (atoi) time=272ms   accepted 需考虑各种可能出现的情况 public class Solution { public int atoi(String str) { int length=str.length(); long result=0; int flag=1; Boolean bFlag=false,bSpace=false,bNum=false; if(length<=0) return (int) result; else…

1.  String to Integer (atoi) Implement atoi to convert a string to an integer. Hint: Carefully consider all possible input cases. If you want a challenge, please do not see below and ask yourself what are the possible input cases. Notes: It is inte…

String to Integer (atoi) Implement atoi to convert a string to an integer. [函数说明]atoi() 函数会扫描 str 字符串,跳过前面的空白字符(例如空格,tab缩进等),直到遇上数字或正负符号才开始做转换,而再遇到非数字或字符串结束时('\0')才结束转换,并将结果返回. [返回值]返回转换后的整型数:如果 str 不能转换成 int 或者 str 为空字符串,那么将返回 0.如果超出Integer的范围,将会返回I…

题目String to Integer (atoi)(难度Medium) 大意是找出给定字串开头部分的整型数值,忽略开头的空格,注意符号,对超出Integer的数做取边界值处理. 方案1 class Solution { fun myAtoi(str: String): Int { val maxInt = " val maxIntS = "+2147483647" val minIntS = "-2147483648" val lengthMI = ma…

今天分享一下关于最近面试的问题,临近春节,而我在茫茫人海中奔波,今天面试了来到了中关村科技园,挺气派的,之前也是在外面看看,今天就去了,心里有点激动,恰好,正好赶上了上班时,看见它们的努力,我感到再累也值! 废话不说了,我就说一下今天遇到的面试题,感到自己有点危机感,之后下来我在这里总结总结: String 与Integer 相关的问题: 第一题: //Integer n1 = new Integer(11); //Integer n2 = new Integer(11); //Integer…

8. String to Integer (atoi) Total Accepted: 112863 Total Submissions: 825433 Difficulty: Easy Implement atoi to convert a string to an integer. Hint: Carefully consider all possible input cases. If you want a challenge, please do not see below and as…

leetcode-algorithms-8 String to Integer (atoi) Implement atoi which converts a string to an integer. The function first discards as many whitespace characters as necessary until the first non-whitespace character is found. Then, starting from this ch…