Given a string S, find the longest palindromic substring in S. Substring of string S: S[i...j] where 0 <= i <= j < len(S) Palindrome string:

Implement strStr(). strstr - locate a substring ( needle ) in a string ( haystack ). Try not to use standard library string functions for

There are two sorted arrays A and B of size m and n respectively. Find the median of the two sorted arrays ( The median of the array formed

Given an array of integers A of size N and an integer B. array A is rotated at some pivot unknown to you beforehand. (i.e., 0 1 2 4 5 6 7 mi

Given a sorted array of integers A(0 based index) of size N, find the starting and ending position of a given integer B in array A. Your alg

Given an integer, A. Compute and return the square root of A. If A is not a perfect square, return floor(sqrt(A)).

Given a string, find the rank of the string amongst its permutations sorted lexicographically. Assume that no characters are repeated.

Given an integer A, return the number of trailing zeroes in A!.

A robot is located at the top-left corner of an A x B grid. The robot can only move either down or right at any point in time. The robot is

Give a N*N square matrix, return an array of its anti-diagonals. Look at the example for more details.