:x: Problematic code:
array = list(range(10)) n = input() for elem in array: if int(n) == elem: pass
:heavy_check_mark: Correct code:
array = list(range(10)) n = input() if int(n) in array: pass
To check if a variable is equal to one of many values,combine the values into a tuple and check if the variable is contained in it instead of checking for equality against each of the values. This is faster and less verbose.