Given a 1-indexed integer array nums of length n, an element nums[i] is considered special if the index i divides the length n (i.e., n % i == 0). Your task is to find the sum of the squares of all special elements in the array.
Determine if an integer array nums is a permutation of a special array base[n], defined as [1, 2, …, n - 1, n, n], where 1 to n-1 appear once and n appears twice.
You are given an array ‘words’ of strings and a character ‘separator’. Your task is to split each string in ‘words’ by the separator. After the split, return an array of strings containing the new substrings, excluding any empty strings.
You are given an array ‘hours’ where each element represents the number of hours an employee has worked at the company. The company requires each employee to work for at least ’target’ hours. Your task is to return the number of employees who worked at least ’target’ hours.
You have a bank account with a balance of 100 dollars. You are given a purchase amount and need to round it to the nearest multiple of 10. Then, deduct the rounded amount from your account balance and return the remaining balance.
You are given a string s. On your faulty keyboard, whenever you press ‘i’, the string typed so far is reversed. Pressing any other character types it normally. Simulate typing the entire string and return the final string displayed on the screen.