Leetcode Problem 456. 132 Pattern

456. 132 Pattern

Leetcode Solutions

Create a min array to store the minimum value found so far at each index.
Initialize a stack to keep track of potential nums[k] values.
Iterate through the nums array from right to left.
For each nums[j], check if it is greater than min[j].
If it is, pop elements from the stack until the top element is greater than min[j].
If the stack is not empty and the top element is less than nums[j], return true as we have found a 132 pattern.
Push nums[j] onto the stack.
If we reach the end of the array without returning true, return false as no 132 pattern exists.

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