python官网-greedy-methods.rar

""" 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: str) -> list[int]: """ Find the minimum change from the given denominations and value >>> 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] """ total_value = int(value) # Initialize Result answer = [] # Traverse through all denomination for denomination in reversed(denominations): # Find denominations while int(total_value) >= int(denomination): total_value -= int(denomination) answer.append(denomination) # Append the "answers" array return answer # Driver Code if __name__ == "__main__": denominations = [] value = "0" if ( input("Do you want to enter your denominations ? (yY/n): ").strip().lower() == "y" ): 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}: ").strip())) value = input("Enter the change you want to make in Indian Currency: ").strip() else: # All denominations of Indian Currency if user does not enter denominations = [1, 2, 5, 10, 20, 50, 100, 500, 2000] value = input("Enter the change you want to make: ").strip() if int(value) == 0 or int(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 result for i in range(len(answer)): print(answer[i], end=" ")