游戏代理300元一天单页网站seo优化
题目链接:8. 字符串转换整数 (atoi) - 力扣(LeetCode)
感觉题目就好难读懂,自己尝试了一下可能是方法太笨就太复杂,并且只能通过一大半的用例。不想折腾了直接copy文心一言代码(deepseek的代码不能完全通过)
int myAtoi(char *str) {int index = 0;int sign = 1;int result = 0;// Step 1: Skip all leading whitespace characters// 1. 跳过前导空格while (isspace(str[index])) {index++;}// Step 2: Check if the next character is '-' or '+'// 2. 处理符号if (str[index] == '+' || str[index] == '-') {sign = (str[index] == '-') ? -1 : 1;index++;}// Step 3: Convert the consecutive digits to an integer// 3. 读取数字字符while (isdigit(str[index])) {int digit = str[index] - '0';// Step 4: Handle overflow and underflow// 4. 检查是否溢出if (result > (INT_MAX - digit) / 10) {return (sign == 1) ? INT_MAX : INT_MIN;}result = result * 10 + digit;index++;}// Apply the sign// 返回最终结果return result * sign;
}