
Find the Difference (Beautiful Arrangement) Problem Solution
Problem Given two strings, ‘s’ and ‘t’ have all the characters the…

10 Best Data Structure and Algorithm Courses Online You Should Opt In
DSA is a core concept in programming. It stands for data structures and algorithms. Any programming…

Find minimum product among all combinations of triplets in an array
Problem Find the minimum product of any three triplets in an array. Sample Input [1, 2, …

Count distinct absolute values in a sorted array
Problem Given a sorted array of integers, return the number of distinct absolute values among th…

Find subarrays with a given sum in an array
Problem Given an unsorted array of nonnegative integers, find a continuous subarray which adds t…

Find the index that divides an array into two non-empty subarrays with equal sum
Problem Given an integer array, find an index that divides it into two non-empty subarrays havin…

Efficiently calculate the frequency of all elements present in a limited range array
Problem Given an array of the sizes n where elements range from 0 to n-1. Calculate the fre…

Rearrange an array such that it contains alternate positive and negative numbers
Problem You are given an array. Rearrange the elements such that positive and negative integers …

Find the sorted triplet in an array
Problem Given an integer array arr, find a sorted triplet such that arr[i] < arr[j] < arr[…

Left Rotate an Array
Problem Given an array of integers, you need to rotate it by k times. Sample Input [1, 2…

Activity Selection Problem
Problem Given pairs of integers denoting starting and ending time of each task. Find the maximum…

Job Sequencing Problem
Problem Given a set of jobs, each with its own deadline and corresponding profit. You get profit…