摘要：
You are given an integer array coins representing coins of different denominations and an integer amount representing a total amount of money. Return 阅读全文
摘要：
Given a circular integer array nums (i.e., the next element of nums[nums.length - 1] is nums[0]), return the next greater number for every element in 阅读全文
摘要：
There are a row of n houses, each house can be painted with one of the k colors. The cost of painting each house with a certain color is different. Yo 阅读全文
摘要：
Given an m x n matrix mat where every row is sorted in strictly increasing order, return the smallest common element in all rows. If there is no commo 阅读全文