Leetcode 8. String to Integer (atoi) atoi函数实现 (字符串) 题目描述 实现atoi函数,将一个字符串转化为数字 测试样例 Input: "42" Output: 42 Input: " -42" Output: -42 Input: "4193 with words" Output: 4193 Input: "words and 987" Output: 0 详细分析 这道题的cor…

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. 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…

实现字符串转整形数字 遵循几个规则: 1. 函数首先丢弃尽可能多的空格字符,直到找到第一个非空格字符. 2. 此时取初始加号或减号. 3. 后面跟着尽可能多的数字,并将它们解释为一个数值. 4. 字符串可以在组成整数的字符之后包含其他字符,这些字符将被忽略,并且对该函数的行为没有影响. 5. 如果str中的第一个非空格字符序列不是有效的整数,则为0. Runtime: 16 ms, faster than 62.80% of C++ online submissions for String t…

8. String to Integer (atoi) Medium 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, tak…

# -*- coding: utf8 -*-'''__author__ = 'dabay.wang@gmail.com'https://oj.leetcode.com/problems/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…

这道题在LeetCode OJ上难道属于Easy.可是通过率却比較低,究其原因是须要考虑的情况比較低,非常少有人一遍过吧. [题目] 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 pos…

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…

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 minu…

Implement atoi to convert a string to an integer. 转换很简单,唯一的难点在于需要开率各种输入情况,例如空字符串,含有空格,字母等等. 另外需在写的时候注意细节问题,完成后需要反复调试,整合. public class Solution { public int myAtoi(String str) { if (str == null || str.length() < 1) return 0; str = str.trim(); char fla…