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나는 이렇게 학습한다/Algorithm & SQL405

0125. Counting sheep... Consider an array/list of sheep where some sheep may be missing from their place. We need a function that counts the number of sheep present in the array (true means present). For example, [True, True, True, False, True, True, True, True , True, False, True, False, True, False, False, True , True, True, True, True , False, False, True, True] The correct answer would be 17. Hint: Don't forget to .. 2023. 1. 25.
0124. Regular Ball Super Ball Create a class Ball. Ball objects should accept one argument for "ball type" when instantiated. If no arguments are given, ball objects should instantiate with a "ball type" of "regular." ball1 = Ball() ball2 = Ball("super") ball1.ball_type #=> "regular" ball2.ball_type #=> "super" Solution: class Ball(object): def __init__(self, type: str = "regular") -> None: self._type = type @property def ba.. 2023. 1. 24.
0123. Check same case Write a function that will check if two given characters are the same case. If either of the characters is not a letter, return -1 If both characters are the same case, return 1 If both characters are letters, but not the same case, return 0 Examples 'a' and 'g' returns 1 'A' and 'C' returns 1 'b' and 'G' returns 0 'B' and 'g' returns 0 '0' and '?' returns -1 Solution: def same_case(a: str, b: s.. 2023. 1. 23.
0122. The Feast of Many Beasts The Feast of Many Beasts All of the animals are having a feast! Each animal is bringing one dish. There is just one rule: the dish must start and end with the same letters as the animal's name. For example, the great blue heron is bringing garlic naan and the chickadee is bringing chocolate cake. Write a function feast that takes the animal's name and dish as arguments and returns true or false .. 2023. 1. 23.
0121. esreveR Write a function reverse which reverses a list (or in clojure's case, any list-like data structure) (the dedicated builtin(s) functionalities are deactivated) Solution: def reverse(lst): result = list() for _ in range(len(lst)): result.append(lst.pop()) return result 2023. 1. 21.
0120. Alphabet symmetry Consider the word "abode". We can see that the letter a is in position 1 and b is in position 2. In the alphabet, a and b are also in positions 1 and 2. Notice also that d and e in abode occupy the positions they would occupy in the alphabet, which are positions 4 and 5. Given an array of words, return an array of the number of letters that occupy their positions in the alphabet for each word. F.. 2023. 1. 21.

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