746. Min Cost Climbing Stairs-使用最小花费爬楼梯
On a staircase, the i-th step has some non-negative cos... » 阅读全文
744. Find Smallest Letter Greater Than Target-寻找比目标字母大的最小字母
Given a list of sorted characters letters containing on... » 阅读全文
733. Flood Fill-图像渲染
An image is represented by a 2-D array of integers, eac... » 阅读全文
728. Self Dividing Numbers-自除数
A self-dividing number is a number that is divisible by... » 阅读全文
709. To Lower Case-转换成小写字母
Implement function ToLowerCase() that has a string para... » 阅读全文
704. Binary Search-二分查找
Given a sorted (in ascending order) integer array nums ... » 阅读全文
703. Kth Largest Element in a Stream-数据流中的第 K 大元素
Design a class to find the kth largest element in a str... » 阅读全文
700. Search in a Binary Search Tree-二叉搜索树中的搜索
You are given the root of a binary search tree (BST) an... » 阅读全文
697. Degree of an Array-数组的度
Given a non-empty array of non-negative integers nums, ... » 阅读全文
693. Binary Number with Alternating Bits-交替位二进制数
Given a positive integer, check whether it has alternat... » 阅读全文