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题解(15)

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题解 | #从下到上打印二叉树#

class Solution: def levelOrderBottom(self , root: TreeNode) -> List[List[int]]: &n...

Python3

2022-09-11

0 344

题解 | #有效括号序列#

class Solution: def isValid(self , s: str) -> bool: ...

Python3

2022-09-09

0 267

题解 | #整数与IP地址间的转换#直接明了

while 1: try: lst = list(map(int, input().split('.'))) n = int(input()) s = '' for x in lst: ...

Python3

2022-04-13

0 419

题解 | #三数之和#

class Solution: def threeSum(self , num: List[int]) -> List[List[int]]: # write code here n = len(num) num.sort() ...

Python3

2022-04-13

0 335

题解 | #迷宫问题#

def dfs(i, j): walk = [(0,1), (0,-1), (1,0), (-1,0)] if i == m-1 and j == n-1: for p in path: print("({x},{y})".forma...

Python3

2022-04-12

0 345

题解 | #24点游戏算法#

''' 每次选两个数出来使用四则运算计算结果后，将新的数加入数组重复递归如果最后只剩一个元素24那么就找到了，为什么不直接等于24是因为在除法的时候double有一些精度偏差 ''' def func(arr): if len(arr) == 1: return abs(a...

Python3

2022-04-12

4 525

题解 | #名字的漂亮度#简单易懂

n = int(input()) while 1: try: lst = list(input()) dic = {} for x in lst: if x in dic.keys(): ...

Python3

2022-04-11

0 315

题解 | #图片整理#简单使用排序函数

while 1: try: string = input() s = '' lst = sorted(string) for x in lst: s+=x print(s) exc...

Python3

2022-04-10

4 405

题解 | #字符串加解密#简单模拟

def code(string): res = '' for x in string: if x.isdigit(): res += str((int(x)+1)%10) elif x.isupper() and x != 'Z...

Python3

2022-04-10

0 415

题解 | #字符逆序#

while True: try: s = input().strip().split(' ')[::-1] for x in s: x = x[::-1] print(x, end=' ') except...

Python3

2022-03-26

0 356