xinyu04

摘要： Given a string s which represents an expression, evaluate this expression and return its value. The integer division should truncate toward zero. You 阅读全文

摘要： You are given two integer arrays nums1 and nums2, sorted in non-decreasing order, and two integers m and n, representing the number of elements in num 阅读全文

摘要： Given head which is a reference node to a singly-linked list. The value of each node in the linked list is either 0 or 1. The linked list holds the bi 阅读全文

摘要： Given a root node reference of a BST and a key, delete the node with the given key in the BST. Return the root node reference (possibly updated) of th 阅读全文