Given a Weather table, write a SQL query to find all dates’ Ids with higher temperature…

  Given two words word1 and word2, find the minimum number of steps required to make …

  Given a Binary Search Tree (BST) with the root node root, return the minimum difference betwe…

All DNA is composed of a series of nucleotides abbreviated as A, C, G, and T, for example: “ACGAATTCCG&#…

题目 给一个包含 n 个整数的数组 S, 找到和与给定整数 target 最接近的三元组，返回这三个数的和。 注意事项 只需要返回三元组之和，无需返回三元组本身 样例 例如 S = [-1, 2, 1, -4] and …

  Follow up for H-Index: What if the citations array is sorted in ascending order? Could you optimize you…

  Given a set of distinct positive integers, find the largest subset such that every pair (Si, Sj) of ele…

题目描述 Given an array of integers, find two numbers such that they add up to a specific target number. The funct…

  Design an algorithm to encode a list of strings to a string. The encoded string is then …

  Given a sequence of n integers a1, a2, …, an, a 132 pattern is a subsequence ai, aj, ak such…

Evaluate the value of an arithmetic expression in Reverse Polish Notation.Valid operators are +, -, *, /. Each…

H-Index I Given an array of citations (each citation is a non-negative integer) of a researcher, write a funct…