Leetcode Problem 1966. Binary Searchable Numbers in an Unsorted Array

1966. Binary Searchable Numbers in an Unsorted Array

Leetcode Solutions

Prefix and Suffix Comparison

  1. Initialize two arrays, leftMax and rightMin, of the same length as the input array nums.\n2. Set leftMax[0] to the smallest possible integer and rightMin[-1] to the largest possible integer.\n3. Iterate through nums from left to right, updating leftMax such that leftMax[i] is the maximum value encountered so far.\n4. Iterate through nums from right to left, updating rightMin such that rightMin[i] is the minimum value encountered so far.\n5. Initialize a counter count to 0.\n6. Iterate through nums and increment count for each element that is greater than leftMax[i] and less than rightMin[i].\n7. Return the value of count.
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Monotonic Stack Approach

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