Second height number

arr0 = [5, 2, 7, 3, 1]


Question : Find the second heighest number in given array.


Test Cases
arr1 = [23, 4, 56, 76, 75, 23]
arr2 = [19, 11, 32, 45, 45, 12]

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Example = [23, 2, 12, 56, 34, 10]
Anwser = 34