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You are given a sorted integer array arr containing 1 and prime numbers....
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Given an integer array nums sorted in non-decreasing order, remove the duplicates in-place such that each unique element appears only once. The relative order of the elements should be kept the same. Then return the number of unique elements in nums.- Published on
Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it can trap after raining.