摘要：Given the array restaurants where restaurants[i] = [idi, ratingi, veganFriendlyi, pricei, distancei]. You have to filter the restaurants using three f 阅读全文

摘要：You are given a string s consisting only of letters 'a' and 'b'. In a single step you can remove one palindromic subsequence from s. Return the minimu 阅读全文

摘要：Given an array of integers arr, replace each element with its rank. The rank represents how large the element is. The rank has the following rules: Ra 阅读全文

摘要：You are given an integer array nums. The value of this array is defined as the sum of |nums[i] - nums[i + 1]| for all 0 <= i < nums.length - 1. You ar 阅读全文