Given a sorted array and a target value, return the index if the target is found. If not, return the index where it would be if it were inserted in order. You may assume no duplicates in the array.
//Runtime: 8 ms, faster than 99.49% of C++ online submissions for Validate Binary Search Tree. //Memory Usage: 22.2 MB, less than 5.05% of C++ online submissions for Validate Binary Search Tree. * ...
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