DATA STRUCTURE
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Find the Difference (Beautiful Arrangement) Problem Solution
Problem Given two strings, ‘s’ and ‘t’ have all the characters the…
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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…
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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 …
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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…
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Job Sequencing Problem
Problem Given a set of jobs, each with its own deadline and corresponding profit. You get profit…
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Activity Selection Problem
Problem Given pairs of integers denoting starting and ending time of each task. Find the maximum…
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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…
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Find subarrays with a given sum in an array
Problem Given an unsorted array of nonnegative integers, find a continuous subarray which adds t…
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Count distinct absolute values in a sorted array
Problem Given a sorted array of integers, return the number of distinct absolute values among th…
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Print Matrix in Spiral Form
Problem Given an integer matrix, print it in spiral form Sample Input [1 2 3 4] [4 5 6 …
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Find the sorted triplet in an array
Problem Given an integer array arr, find a sorted triplet such that arr[i] < arr[j] < arr[…
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Shift all matrix elements by 1 in spiral order
Problem Given an M x N matrix, shift all its elements by 1 in spiral order Sample Input …