1. 题目描述 problem link Given two binary trees, write a function to check if they are the same or no...
1. 题目描述 problem link Design your implementation of the circular queue. The circular queue is a li...
1. 题目描述 problem link Implement the following operations of a queue using stacks. push(x) -- Push...
1. 题目描述 problem link Implement the following operations of a stack using queues. push(x) -- Push...
1. 题目描述 problem link Write a program to find the node at which the intersection of two singly lin...
1. 题目描述 A linked list is given such that each node contains an additional random pointer which co...
1. 题目描述 Suppose an array sorted in ascending order is rotated at some pivot unknown to you before...
1. 题目描述 problem link Design a stack that supports push, pop, top, and retrieving the minimum elem...