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Algorithm Interview Archive

In this post, we will see edit distance problem in java Problem Given two strings string1 and string2, String1 is to be converted into String2 with the given operations available in the minimum number of …

In this post, we will see about Sliding Window Maximum in java Problem Given an Array of integers and an Integer k, Find the maximum element of from all the contiguous subarrays of size K. …

In this post, we will see how to count number of occurrences (or frequency) of each element in a sorted array Problem Given a Sorted Array of integers containing duplicates. Find the frequency of every …

In this post, we will see how to find subarrays with given sum in an array. Problem Given an Array of non negative Integers and a number. You need to print all the starting and …

In this post, we will see how to find peak element in the array. Problem Given an array of integers. find the peak element in the array. Peak Element is the element of the array …

In this post, we will see how to count number of 1’s in sorted binary array. Problem Print number of 1’s in a given sorted Binary Array. For eg:- int arr = {0,0,0,1,1,1,1}; output : …

In this post, we will see how to find the first repeating element in array of integers. Problem Find the first repeating element in array of integers. For example: Input: array = {10, 7, 8, …

In this post, we will see how to check if array elements are consecutive. Problem Given an array, we need to check if array contains consecutive elements. For example: Input: array = {5, 3, 4, …

In this post, we will see how to find the longest common substring in java. Program Given two String, find longest common substring. For example: String 1: Java2blog String 2: CoreJavaTutorial Longest common subString is: …

In this post, we will see how to print the maximum occurring character in a String. Problem Print maximum occurring character in a String For example: String 1: java2blog tutorial Character: a has occurred maximum …