Given an integer array with even length, where different numbers in this array represent diff…

  Given an array A (index starts at 1) consisting of N integers: A1, A2, …, AN …

  Given a binary search tree and the lowest and highest boundaries as L and R, trim the tr…

题目： Given two numbers represented as strings, return multiplication of the numbers as a string. Note: The numb…

  
Given
 an 
arbitrary
 ransom
 note
 string 
and 
another 
string 
containing 
letters from
 all 
the 
…

A peak element is an element that is greater than its neighbors.Given an input array nums, where nums[i] ≠ num…

43. Multiply Strings 题目 Given two non-negative integers num1 and num2 represented as strings, return the produ…

  In a 2 dimensional array grid, each value grid[i][j] represents the height of a building…

题目描述 Given preorder and inorder traversal of a tree, construct the binary tree. Note: You may assume that dupl…

  Given an array of n distinct non-empty strings, you need to generate minimal possible abbrevi…

  Given an array consists of non-negative integers, your task is to count the number of triplets chosen f…

  Given an array of integers nums, write a method that returns the “pivot” index of this…