PROBLEM DESCRIPTION Given a string A and integer B, remove all consecutive same characters that have length exactly B. NOTE : All the consecutive same characters that have length exactly B will b...

PROBLEM DESCRIPTION Implement strStr(). strstr - locate a substring ( needle ) in a string ( haystack ). Try not to use standard library string functions for this question. Returns the index of...

PROBLEM DESCRIPTION Divide two integers A and B, without using multiplication, division, and mod operator. Return the floor of the result of the division.Also, consider if there can be overflow c...

PROBLEM DESCRIPTION You are playing the Bulls and Cows game with your friend. You write down a secret number and ask your friend to guess what the number is. When your friend makes a guess, you p...

PROBLEM DESCRIPTION You are given a string A, and you have to find all the amazing substrings of A. An amazing Substring is one that starts with a vowel (a, e, i, o, u, A, E, I, O, U). Note: Take...

PROBLEM DESCRIPTION Given the array of strings A, you need to find the longest string S which is the prefix of ALL the strings in the array. Longest common prefix for a pair of strings S1 and S2 ...

PROBLEM DESCRIPTION You are given two strings A and B. Check whether there exists any permutation of both A and B such that they are equal. Return a single integer 1 if its exists, 0 otherwise. ...

PROBLEM DESCRIPTION Given a string A with lowercase english alphabets and you have to return a string in which, with each character its frequency is written in adjacent. SOLUTION public class So...

PROBLEM DESCRIPTION You are given a string A which is a serialized string. You have to restore the original array of strings. The string in the output array should only have lowercase english alp...

PROBLEM DESCRIPTION We define f(X, Y) as the number of different corresponding bits in the binary representation of X and Y. For example, f(2, 7) = 2, since the binary representation of 2 and 7 a...