Problem Statement Given an array of integers arr, write a function that returns true if the number of occurrences of each value in the array is unique, otherwise return false. Example For the array arr = [1,2,2,1,1,3], the number of occurrences are: 1 appears 3 times, 2 appears 2 times, and 3 appears 1 time. […]
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Problem Statement: Given an array of integers, nums, and an integer target, return the indices of the two numbers such that they add up to the target. You may assume that each input would have exactly one solution, and you may not use the same element twice. Example For the array nums = [2, 7,
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Problem Statement Given an array of integers, where each integer represents the height of a vertical line on a chart, determine the two lines which, together with the x-axis, forms a container that can hold the most water. The objective is to maximize the area of the container. Note: The width of the container is
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