摘要： Given a binary tree Populate each next pointer to point to its next right node. If there is no next right node, the next pointer should be set to NULL 阅读全文

摘要： Given an array nums of integers, you can perform operations on the array. In each operation, you pick any nums[i] and delete it to earn nums[i] points 阅读全文

摘要： Given a 2D board and a word, find if the word exists in the grid. The word can be constructed from letters of sequentially adjacent cell, where "adjac 阅读全文

摘要： Write a program that outputs the string representation of numbers from 1 to n. But for multiples of three it should output “Fizz” instead of the numbe 阅读全文

摘要： Given a sorted array consisting of only integers where every element appears twice except for one element which appears once. Find this single element 阅读全文

摘要： Convert a non-negative integer to its english words representation. Given input is guaranteed to be less than 231 - 1. For example, 令人烦躁的一个题。要注意的是，101 阅读全文

摘要： Given a non-empty integer array, find the minimum number of moves required to make all array elements equal, where a move is incrementing a selected e 阅读全文

摘要： Given a non-empty integer array of size n, find the minimum number of moves required to make all array elements equal, where a move is incrementing n  阅读全文

摘要： Given a function rand7 which generates a uniform random integer in the range 1 to 7, write a function rand10 which generates a uniform random integer 阅读全文

摘要： There are N children standing in a line. Each child is assigned a rating value. You are giving candies to these children subjected to the following re 阅读全文