dp[n] @staticmethod def all_num_squares(n: int) -> List[int]: # dp[i] 表示 i 最少能表示成 dp[i] 个完全平方数之和。 # 初始化为 n + 1 ,表示暂时还不确定,同时方便后续处理 dp: List[int] = [n + 1] * (n + 1) # 0 最少能表示成 0 个完全平方数之和 dp[0] = 0 #
Python3代码 classSolution:defnumSquares(self, n:int) ->int:# solution one: BFSq = [(n,0)] visited = [Falseforiinrange(n +1)]# initialize all Falsevisited[n] =Truewhileany(q):# any: if all elements are False, return False, or return Truenum, step = q.pop(0) i =1Num = ...
Python代码(Time Limit Exceeded): class Solution(object): def numSquares(self, n): """ :type n: int :rtype: int """ dp = collections.defaultdict(int) y = 1 while y * y <= n: dp[y * y] = 1 y += 1 for x in range(1, n + 1): y = 1 while x + y * y <= n:...
python3 官方答案是个解析解法,在此贴个python的DP version,和答案中的java方法一样,方便大家取用 def numSquares(self, n): #writeyour code heredp= [] import sysfori inrange(n+1):dp.append(sys.maxint) i =0whilei * i <= n:dp[i*i] =1i +=1fori inrange(n+1):j=1whilej*j<= ...
279. Perfect Squares Given a positive integern, find the least number of perfect square numbers (for example,1, 4, 9, 16, ...) which sum ton. Example 1: 1212=4+4+4. Example 2: 1313=4+9. classSolution(object):defnumSquares(self, n):""":type n: int...
This branch is 13 commits behind ProphetoL/perfect_squares:main.Folders and files Latest commit MrVeka remove a plt d2d7bc7· Jul 28, 2021 History5 Commits .gitattributes Initial commit Jul 23, 2021 .gitignore numba, loss log Jul 24, 2021 graph.png numba (end) , hyprtunig, export in ...
() else: # Python 3 compatible self.opener = urllib.request.build_opener() self.result = [] self.re_links = re.compile('<a.*?href=.*?<\/a>', re.I) # self.re_element = re.compile('', re.I) # Hardcode at following self.requests = [] for url in urls: if hasattr(urllib...
In the Browser Troubleshooting Author Bas Terwijn Inspiration Inspired byPython Tutor. Supported by Python Data Model ThePython Data Modelmakes a distiction between immutable and mutable types: immutable: bool, int, float, complex, str, tuple, bytes, frozenset ...
279. Perfect Squares Given a positive integer n, find the least number of perfect square numbers (for example, 1, 4, 9, 16, ...) which sum to n. Example 1: Example 2: 最近复习考试,好几天没刷题了。 这道题从LeetCode讨论区学到了不少,明白... ...
Python3代码 classSolution:defnumSquares(self,n:int)->int:# solution one: BFSq=[(n,0)]visited=[Falseforiinrange(n+1)]# initialize all Falsevisited[n]=Truewhileany(q):# any: if all elements are False, return False, or return Truenum,step=q.pop(0)i=1Num=num-i**2whileNum>=0:...