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 for this problem to be spe…
［抄题］: Input: "42" Output: 42 Example 2: Input: " -42" Output: -42 Explanation: The first non-whitespace character is '-', which is the minus sign. Then take as many numerical digits as possible, which gets 42. Example 3: Input: "…
详见:https://leetcode.com/problems/string-to-integer-atoi/description/ 实现语言:Java class Solution { public int myAtoi(String str) { int index =0; Long total = new Long(0); int sign = 1; while(index < str.length() && str.charAt(index) == ' '){ ++ind…
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 character, takes an optional initial plus or minus…
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…
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…
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…
