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题解 | #实现二叉树先序，中序和后序遍历#

# class TreeNode: # def __init__(self, x): # self.val = x # self.left = None # self.right = None # # # @param root TreeN...

Python3

2021-10-27

0 467

题解 | #子数组最大连续和#

while True: try: n = int(input()) nums = list(map(int, input().split())) pre, Max = 0, nums[0] for n in nums: ...

Python3

2021-10-26

0 388

题解 | #从单向链表中删除指定值的节点#

class Node(): def __init__(self, val=None, next=None): self.val = val self.next = next class LinkedList(): def __init__(s...

Python3

2021-10-24

46 3330

题解 | #矩阵乘法#

while True: try: x, y, z = int(input()), int(input()), int(input()) lst1, lst2, lst3 = [], [], [] for _ in range(x): ...

Python3

2021-10-23

0 526

题解 | #24点运算#

dic = { '2' : 2, '3' : 3, '4' : 4, '5' : 5, '6' : 6, '7' : 7, '8' : 8, '9' : 9, '10' : 10, 'J' : 11, 'Q' : 12, 'K' : 13, 'A' : 1 } def others...

Python3

2021-10-23

1 554

题解 | #24点游戏算法#

def dfs(lst): if len(lst) == 1: if lst[0] == 24: return True else: return False a = dfs([ lst[0] + lst...

Python3

2021-10-23

0 657

题解 | #扑克牌大小#

dic = { '3' : 1, '4' : 2, '5' : 3, '6' : 4, '7' : 5, '8': 6, '9' : 7, '10' : 8, 'J' : 9, 'Q' : 10, 'K' : 11, 'A' : 12, '2' : 13, 'joker' :...

Python3

2021-10-23

36 2698

题解 | #求最大连续bit数#

while True: try: n = int(input()) s = bin(n).replace('0b', '') s = (8 - len(s)) * '0' + s Max, count = 1, 1 ...

Python3

2021-10-22

1 839

题解 | #人民币转换#

ch = ['零', '壹', '贰', '叁', '肆', '伍', '陆', '柒', '捌', '玖'] while True: try: s = input() before, after = s.split('.') head, b...

Python3

2021-10-22

7 1666

题解 | #字符串通配符#

def match(p, s): m, n = len(p), len(s) ''' 初始化边界： 1、dp[0][0] = True，空模式空字符串，匹配成功； 2、dp[0][j] = False，空模式无法匹配非空字符串； ...

Python3

2021-10-22

19 2095