bokeyyy

摘要： 【题目描述】 You have two numbers represented by a linked list, where each node contains a single digit. The digits are stored in forward order, such that t 阅读全文

摘要： 【题目描述】 Write a method to replace all spaces in a string with%20. The string is given in a characters array, you can assume it has enough space for rep 阅读全文