Appearance
question:def days_until_supply_runs_out(test_cases): Calculate the number of days until the supplies run out for each test case. :param test_cases: List of tuples where each tuple contains (Q, U) :return: List of integers representing the days until each supply runs out. >>> days_until_supply_runs_out([(15, 3), (20, 4), (10, 10), (5, 7)]) [5, 5, 1, 0] >>> days_until_supply_runs_out([(0, 1), (0, 10), (0, 1000)]) [0, 0, 0] >>> days_until_supply_runs_out([(1, 10), (5, 6), (3, 4)]) [0, 0, 0] >>> days_until_supply_runs_out([(1, 1), (10**9, 1), (10**9, 10**9)]) [1, 10**9, 1]
answer:def days_until_supply_runs_out(test_cases): Calculate the number of days until the supplies run out for each test case. :param test_cases: List of tuples where each tuple contains (Q, U) :return: List of integers representing the days until each supply runs out. result = [] for Q, U in test_cases: if Q <= 0: result.append(0) else: result.append(Q // U if Q % U == 0 else Q // U) return result
question:from typing import List def segment_string(s: str, dictionary: List[str]) -> List[str]: Segment the string into a sequence of one or more dictionary words such that the resulting sequence matches the input string. >>> segment_string("applepie", ["apple", "pie", "orange"]) ["apple", "pie"] >>> segment_string("thequickbrownfox", ["the", "quick", "brown", "fox"]) ["the", "quick", "brown", "fox"] >>> segment_string("applepie", ["applepie", "pie", "orange", "apple"]) ["apple", "pie"] >>> segment_string("pineapplepenapple", ["apple", "pen", "applepen", "pine", "pineapple"]) ["pine", "apple", "pen", "apple"] >>> segment_string("catsandog", ["cats", "dog", "sand", "and", "cat"]) [] def segment_multiple_strings(test_cases: List[tuple]) -> List[List[str]]: Handle multiple test cases for segmenting strings. >>> test_cases = [ ... ("applepie", ["apple", "pie", "orange"]), ... ("thequickbrownfox", ["the", "quick", "brown", "fox"]), ... ("applepie", ["applepie", "pie", "orange", "apple"]), ... ("pineapplepenapple", ["apple", "pen", "applepen", "pine", "pineapple"]), ... ("catsandog", ["cats", "dog", "sand", "and", "cat"]) ... ] >>> expected = [ ... ["apple", "pie"], ... ["the", "quick", "brown", "fox"], ... ["apple", "pie"], ... ["pine", "apple", "pen", "apple"], ... [] ... ] >>> segment_multiple_strings(test_cases) == expected True
answer:from typing import List def segment_string(s: str, dictionary: List[str]) -> List[str]: n = len(s) dp = [None] * (n + 1) dp[0] = [] # Sort dictionary for lexicographical comparison dictionary.sort() for i in range(1, n + 1): for word in dictionary: if len(word) <= i and s[i - len(word):i] == word and dp[i - len(word)] is not None: if dp[i] is None or dp[i - len(word)] + [word] < dp[i]: dp[i] = dp[i - len(word)] + [word] return dp[n] or [] def segment_multiple_strings(test_cases: List[tuple]) -> List[List[str]]: results = [] for s, dictionary in test_cases: results.append(segment_string(s, dictionary)) return results
question:def roman_to_integer(s: str) -> int: Converts a Roman numeral string to an integer. :param s: A string representing the Roman numeral. :return: The integer representation of the Roman numeral. Examples: >>> roman_to_integer("III") 3 >>> roman_to_integer("IV") 4 >>> roman_to_integer("IX") 9 >>> roman_to_integer("LVIII") 58 >>> roman_to_integer("MCMXCIV") 1994 Unit Test: def test_roman_to_integer(): assert roman_to_integer("III") == 3 assert roman_to_integer("IV") == 4 assert roman_to_integer("IX") == 9 assert roman_to_integer("LVIII") == 58 assert roman_to_integer("MCMXCIV") == 1994 assert roman_to_integer("MMXIV") == 2014 assert roman_to_integer("CCCXLV") == 345 # C=100, C=100, C=100, XL=40, V=5 assert roman_to_integer("CDXLIV") == 444 # CD=400, XL=40, IV=4 assert roman_to_integer("MMMCMXCIX") == 3999 # MMM=3000, CM=900, XC=90, IX=9 def test_roman_to_integer_simple_cases(): assert roman_to_integer("I") == 1 assert roman_to_integer("V") == 5 assert roman_to_integer("X") == 10 assert roman_to_integer("L") == 50 assert roman_to_integer("C") == 100 assert roman_to_integer("D") == 500 assert roman_to_integer("M") == 1000 def test_roman_to_integer_complex_cases(): assert roman_to_integer("CCCLXXXIX") == 389 assert roman_to_integer("CCCLX") == 360 assert roman_to_integer("CDLXXXIV") == 484 assert roman_to_integer("MMMDCCCLXXXVIII") == 3888 # MMM=3000, D=500, CCC=300, L=50, XXX=30, VIII=8
answer:def roman_to_integer(s: str) -> int: Converts a Roman numeral string to an integer. :param s: A string representing the Roman numeral. :return: The integer representation of the Roman numeral. roman_to_int_map = { 'I': 1, 'V': 5, 'X': 10, 'L': 50, 'C': 100, 'D': 500, 'M': 1000 } total = 0 prev_value = 0 for char in reversed(s): current_value = roman_to_int_map[char] if current_value < prev_value: total -= current_value else: total += current_value prev_value = current_value return total
question:def encode_string(s: str) -> str: Encodes the given string by counting consecutive repeated characters. Parameters: s (str): The input string composed of lowercase letters. Returns: str: The encoded form of the input string. >>> encode_string("aaabbccca") "a3b2c3a1" >>> encode_string("abcd") "a1b1c1d1" >>> encode_string("zzzzz") "z5" >>> encode_string("a") "a1" >>> encode_string("") "" >>> encode_string("ab") "a1b1" >>> encode_string("aaabaaa") "a3b1a3" >>> encode_string("aabbaa") "a2b2a2" >>> encode_string("aabbbbaaaa") "a2b4a4" >>> encode_string("abcdefgh") "a1b1c1d1e1f1g1h1"
answer:def encode_string(s): Encodes the given string by counting consecutive repeated characters. Parameters: s (str): The input string composed of lowercase letters. Returns: str: The encoded form of the input string. if not s: return "" encoded_str = [] count = 1 n = len(s) for i in range(1, n): if s[i] == s[i-1]: count += 1 else: encoded_str.append(s[i-1] + str(count)) count = 1 # Add the last group of characters encoded_str.append(s[-1] + str(count)) return ''.join(encoded_str)