3080. Mark Elements on Array by Performing Queries

You are given a 0-indexed array nums of size n consisting of positive integers. You are also given a 2D array queries of size m where queries[i] = [indexi, ki]. Initially all elements of the array are unmarked. You need to apply m queries on the array in order, where on the ith query you do the following: - Mark the element at index indexi if it is not already marked. - Then mark ki unmarked