Python Codes

Sorts one list based on another list containing the desired indexes. Use zip() and sorted() to combine and sort the two lists, based on the values of indexes. Use a list comprehension to get the first element of each pair from the result. Code: def sort_by_indexes(lst, indexes): return [val for _, val in sorted(zip(indexes, lst), key = lambda x: x[0])] EXAMPLES a = ['eggs', 'bread', 'oranges', 'jam', 'apples', 'milk'] b = [3, 2, 6, 4, 1, 5] sort_by_indexes(a, b) # ['apples', 'bread', 'eggs', 'jam', 'milk', 'oranges'] Share and Support @python_codes

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Solution: def BalancedBrackets(st): openingBrackets="([{" closingBrackets=")]}" matchingBrackets={ ')':'(', '}':'{', ']':'[' } stack=[] for char in st: if char in openingBrackets: stack.append(char) elif char in closingBrackets: if len(stack)==0: return False if stack[-1]==matchingBrackets[char]: stack.pop() else: return False return len(stack)==0 print(BalancedBrackets(input())) Share and Support @python_codes

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""" The following code adds two positive integers without using the '+' operator. The code uses bitwise operations to add two numbers. Input: 2 3 Output: 5 """ def add_bitwise_operator(x, y): while y: carry = x & y x = x ^ y y = carry << 1 return x Share and Support @python_codes

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Best Examples of Lambda Functions: Factorial of a Number: fact=lambda n:1 if n<=1 else n*fact(n-1) fact(5) n th fibonacci Number: fib=lambda n:n if n<=1 else fib(n-1)+fib(n-2) fib(8) Share and Support @python_codes