Given an index k, return the kth row of the Pascal’s triangle. Pascal’s triangle : To generate A[C] in row R, sum up A’[C] and A’[C-1] from

Given numRows, generate the first numRows of Pascal’s triangle. Pascal’s triangle : To generate A[C] in row R, sum up A’[C] and A’[C-1] from

You’re given a read only array of n integers. Find out if any integer occurs more than n/3 times in the array in linear time and constant ad

Given an array A of integers, find the maximum of j - i subjected to the constraint of A[i] <= A[j].

Given an array of integers, sort the array into a wave like array and return it, In other words, arrange the elements into a sequence such t

Given a collection of intervals, merge all overlapping intervals. For example: Given [1,3],[2,6],[8,10],[15,18], return [1,6],[8,10],[15,18

Given a set of non-overlapping intervals, insert a new interval into the intervals (merge if necessary). You may assume that the intervals

You are given an n x n 2D matrix representing an image. Rotate the image by 90 degrees (clockwise). You need to do this in place.

Find the contiguous subarray within an array, A of length N which has the largest sum.

Given a non-negative number represented as an array of digits, add 1 to the number ( increment the number represented by the digits ).