Write a function to efficiently convert a floating point number to a rational number. For example, given 0.125 return "1/8"
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Write a python program to find the second largest number in a list?
Write a python program to check if a number is a palindrome or not?
Write a python program to check common letters in two input strings?
Write a function, tokenize_string(input_string, delimiter_list) that returns a list of strings that are separated by the delimiters. For example: tokenize_string("How now, Mrs. Brown Cow") returns ['How', 'now', 'Mrs', 'Brown', 'Cow']
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Write a python program to check if a number is a perfect number?
Write a simple "Hello User" python code snippet.
Write a program to reverse a number in python?
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Discuss an algorithm to traverse a tree, depth first.