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public static int[] rotateArray(int[] arr, int k) { int n = arr.length; // If k is greater than n, take the modulus to get the actual rotation...
Here's an example Java code for generating all permutations of an array using recursion: public class ArrayPermutations { public static void...
To find the first repeating element in an array of integers, we can iterate through the array and use a HashMap to keep track of the frequency of each...
One algorithm that can be used to count the number of occurrences (or frequency) of each element in a sorted array is called the "Two Pointers"...
A local minimum in an array is a value that is smaller than its neighbors. To find local minima in an array, you can iterate through the array and...
One way to sort an array containing zeroes, ones, and twos in O(n) time complexity is by using a variation of the counting sort algorithm. The idea is...