import sys from doctest import testmod """ Test cases: Do you want to enter your denominations ? (Y/N) :N Enter the change you want to make in Indian Currency: 987 Following is minimal change for 987 : 500 100 100 100 100 50 20 10 5 2 Do you want to enter your denominations ? (Y/N) :Y Enter number of denomination:10 1 5 10 20 50 100 200 500 1000 2000 Enter the change you want to make: 18745 Following is minimal change for 18745 : 2000 2000 2000 2000 2000 2000 2000 2000 2000 500 200 20 20 5 Do you want to enter your denominations ? (Y/N) :N Enter the change you want to make: 0 The total value cannot be zero or negative. Do you want to enter your denominations ? (Y/N) :N Enter the change you want to make: -98 The total value cannot be zero or negative. Do you want to enter your denominations ? (Y/N) :Y Enter number of denomination:5 1 5 100 500 1000 Enter the change you want to make: 456 Following is minimal change for 456 : 100 100 100 100 5 5 5 5 5 5 5 5 5 5 5 1 """ def find_minimum_change(denominations: list[int], value: int) -> list[int]: """ Find the minimum change from the given denominations and value. Args: denominations (list[int]): List of available denominations. value (int): The amount of money to be changed. Returns: list[int]: List of denominations representing the minimal change. Examples: >>> find_minimum_change([1, 5, 10, 20, 50, 100, 200, 500, 1000, 2000], 18745) [2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 500, 200, 20, 20, 5] >>> find_minimum_change([1, 2, 5, 10, 20, 50, 100, 500, 2000], 987) [500, 100, 100, 100, 100, 50, 20, 10, 5, 2] >>> find_minimum_change([1, 2, 5, 10, 20, 50, 100, 500, 2000], 0) [] >>> find_minimum_change([1, 2, 5, 10, 20, 50, 100, 500, 2000], -98) [] >>> find_minimum_change([1, 5, 100, 500, 1000], 456) [100, 100, 100, 100, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1] """ # Sort denominations in descending order (biggest first) denominations.sort(reverse=True) # Initialize Result answer = [] # Find minimal change using largest denominations first for denomination in denominations: while value >= denomination: value -= denomination answer.append(denomination) return answer # Driver Code if __name__ == "__main__": # Run doctest testmod() denominations = [] value = 0 if ( input("Do you want to enter your denominations ? (y/n): ").strip().lower() == "y" ): try: n = int( input("Enter the number of denominations you want to add: ").strip() ) for i in range(n): denominations.append(int(input(f"Denomination {i + 1}: ").strip())) value = int( input("Enter the change you want to make in Indian Currency: ").strip() ) except ValueError: print("Invalid input. Please enter valid numbers.") sys.exit(1) else: # Default denominations for Indian Currency denominations = [1, 2, 5, 10, 20, 50, 100, 500, 2000] try: value = int(input("Enter the change you want to make: ").strip()) except ValueError: print("Invalid input. Please enter a valid number.") sys.exit(1) # Ensure denominations are sorted in descending order denominations.sort(reverse=True) if value <= 0: print("The total value cannot be zero or negative.") else: print(f"Following is minimal change for {value}: ") answer = find_minimum_change(denominations, value) print(" ".join(map(str, answer))) # Optimized printing format