Arrays: Given an array, move all the negative number to the end by preserving the relative order.
Problem Statement: ———————- You are given an array, you need to find the prefix sum of the array.…
Arrays: Given an array, find the minimum operations to make binary array to one
Problem Statement: You are given a binary array, you need to choose any 3 consecutive elements and you need to flip al the 3 elements. By…
Arrays: Given an array, find minimum number of swaps required to sort the array
Problem Statement: You are given an array. You need to find the minimum number of swaps required to sort the array. Example: Input: arr[] = {…
Arrays: Find the closest greater element for every array element from another array
Problem Statement: You are given 2 arrays a[] and b[], you need to build a new array c[], such that every element of c[i], contains a value…
Arrays: Print in a Circular Array
Problem Statement: You are given an array, and a name, you need to print all the people in the array staring from the given name. We consider…
Arrays: Given an array and a number n, rotate the array by n steps to its right.
Example: Array = {1, 2, 3, 4, 5 ,6, 7}; n = 4 Explanation: —————————— rotate 1…
Arrays: Convert an array into permutation of numbers from 1 to N.
Problem Statement: You are given an array of length n. You need to count the minimum number of operations to make the array into permutation…
Arrays: Find the minimum number to an array so the sum becomes even
Problem Statement: You are given an array, you need to find the minimum number, that is greater than 0, to the array that the sum of the array…
Arrays: Cell state after K days
Problem Statement: You are given a binary array of size “n” where “n > 3”. Where in “1” is active,…
Arrays: Create a data structure for n elements and constant operations
The complexity of the operations should be as follows: * Insertion of an element – O(1) * Deletion of an element – O(1) * Finding an element –…