摘要:
题目如下: We have n jobs, where every job is scheduled to be done from startTime[i] to endTime[i], obtaining a profit of profit[i]. You're given the start 阅读全文
摘要:
题目如下: You are given a string containing only 4 kinds of characters 'Q', 'W', 'E' and 'R'. A string is said to be balanced if each of its characters ap 阅读全文