Partial Sum Accepted : Submit : Time Limit : MS Memory Limit : KB Partial Sum Bobo has a integer sequence a1,a2,…,an of length n. Each time, he selects two ends ≤l<r≤n and add |∑rj=l+1aj|−C into a counter which is zero initially. He repeats the selec
题目描述 用两个栈来实现一个队列,完成队列的Push和Pop操作. 队列中的元素为int类型. 题目代码 /** * <分析>: * 入队:将元素进栈A * 出队:判断栈B是否为空, * 如果为空,则将栈A中所有元素pop,并push进栈B,栈B出栈: * 如果不为空,栈B直接出栈. * Created by YuKai Fan on 2018/8/20. */ public class TwoStackToAchieveQueue { Stack<Integer> stack1