You are given an array of positive integers arr. Perform some operations (possibly none) on arr so that it satisfies these conditions:
arr must be 1.1. In other words, abs(arr[i] - arr[i - 1]) <= 1 for each i where 1 <= i < arr.length (0-indexed). abs(x) is the absolute value of x.There are 2 types of operations that you can perform any number of times:
\n\narr to a smaller positive integer.arr to be in any order.Return the maximum possible value of an element in arr after performing the operations to satisfy the conditions.
\n
Example 1:
\n\n\nInput: arr = [2,2,1,2,1]\nOutput: 2\nExplanation: \nWe can satisfy the conditions by rearranging\n\narrso it becomes[1,2,2,2,1].\nThe largest element inarris 2.\n
Example 2:
\n\n\nInput: arr = [100,1,1000]\nOutput: 3\nExplanation: \nOne possible way to satisfy the conditions is by doing the following:\n1. Rearrange\n\narrso it becomes[1,100,1000].\n2. Decrease the value of the second element to 2.\n3. Decrease the value of the third element to 3.\nNowarr = [1,2,3], whichsatisfies the conditions.\nThe largest element inarr is 3.\n
Example 3:
\n\n\nInput: arr = [1,2,3,4,5]\nOutput: 5\nExplanation: The array already satisfies the conditions, and the largest element is 5.\n\n\n
\n
Constraints:
\n\n1 <= arr.length <= 1051 <= arr[i] <= 109Compiled with clang 11 using the latest C++ 17 standard.
Your code is compiled with level two optimization (-O2). AddressSanitizer is also enabled to help detect out-of-bounds and use-after-free bugs.
Most standard library headers are already included automatically for your convenience.
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