@param nums: a list of integers @return: find a majority number

@param nums: A list of integers @return: The majority number that occurs more than 1/3

@param prices: Given an integer array @return: Maximum profit

@param prices: Given an integer array @return: Maximum profit

@param matrix: a matrix of 0 and 1 @return: an integer

@param nums: A list of integers @return: A integer indicate the sum of max subarray

@param A and B: sorted integer array A and B. @return: A new sorted integer array

@param ListNode l1 is the head of the linked list @param ListNode l2 is the head of the linked list @return: ListNode head of linked list

@param costs n x 3 cost matrix @return an integer, the minimum cost to paint all houses

@param root: The root of binary tree. @return: An integer.

@param word1 & word2: Two string. @return: The minimum number of steps.

@param grid: a list of lists of integers. @return: An integer, minimizes the sum of all numbers along its path

@param nums: a list of integers @return: A integer indicate the sum of minimum subarray

@param triangle: a list of lists of integers. @return: An integer, minimum path sum.

@param root, index, value: The root of segment tree and @ change the node's value with [index, index] to the new given value @return: void

@param nums: an array of integers @return: return nothing (void), do not return anything, modify nums in-place instead

@param n a positive integer @param primes the given prime list @return the nth super ugly number

@param head: The first node of linked list. @param n: An integer. @return: Nth to last node of a singly linked list.

@param n non-negative integer, n posts @param k non-negative integer, k colors @return an integer, the total number of ways

@param n: An integer. return : An array storing 1 to the largest number with n digits.

@param head: The first node of linked list. @param x: an integer @return: a ListNode

@param nums: The integer array you should partition @param k: As description return: The index after partition

@param nums: an array of integers @return: nothing

@param A an integer array @return a long integer

@param nums: A list of integers. @return: A list of permutations.

@param root: The root of binary tree. @return: Postorder in ArrayList which contains node values.

@param root, start, end: The root of segment tree and an segment / interval @return: The maximum number in the interval [start

@param root, start, end: The root of segment tree and an segment / interval @return: The count number in the interval [start,

@param head a ListNode @param val an integer @return a ListNode

@param head: The first node of linked list. @param n: An integer. @return: The head of linked list.

@param head: The head of linked list. @return: The new head of reversed linked list.

@param n the integer to be reversed @return the reversed integer

@param A an array @return total of reverse pairs

@param str: an array of char @param offset: an integer @return: nothing

param A : an integer sorted array param target : an integer to be inserted return : an integer

@param matrix: A list of lists of integers @param: A number you want to search in the matrix @return: An integer indicate the occurrence of target in

@param path the original path @return the simplified path

@param A : an integer array return : a integer

@param A : An integer array @return : An integer

Get all distinct N-Queen solutions @param n: The number of queens @return: All distinct solutions For example, A string '...Q' shows a queen on forth

@param chars: The letter array you should sort by Case @return: void

@param A: an integer array @return: a tree node

Returns a index to the first occurrence of target in source, or -1 if target is not part of source. @param source string to be scanned. @param target

@param A a string @param B a string @return a boolean

@param nums: A list of integers @return: A list of integers includes the index of the first number and the index of the last number

@param head a ListNode @return a ListNode

@param numbers : Give an array numbers of n integer @return : Find all unique triplets in the array which gives the sum of zero.

@param n, m: positive integer (1 <= n ,m <= 100) @return an integer

@param obstacleGrid: A list of lists of integers @return: An integer