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题解 | #牛牛的矩阵相加#

lis = [[1, 2, 3], [4, 5, 6], [7, 8, 9]] num = int(input()) lis = list(map(lambda x: list(map(lambda i: i * num, x)), lis)) print(lis)嵌了两层map......

Python3

2022-08-16

3 393

题解 | #格式化清单#

food = ["apple", "ice cream", "watermelon", "chips", "hotdogs", "hotpot"] while food: ...

Python3

2022-08-16

0 282

题解 | #列表的最大与最小#

lis = [x for x in range(10, 51)] print(lis) print(lis[0], lis[-1], sep=" ")列表生成式底层调用的是c，理论上比for循环会快很多

Python3

2022-08-16

0 305

题解 | #验证登录名与密码#

admin = {"admis": "Nowcoder666"} name = input() password = input() if admin.get(name) == password: &...

Python3

2022-08-16

0 274

题解 | #判断布尔值#

bool1 = int(input()) if bool1: print("Hello World!") if not bool1: print("Erros!") 在python中将返回值为大于0的值判断...

Python3

2022-08-15

4 457

题解 | #牛牛的替换#

st = input()[2::].split() rep = input() a = 0 for i in range(2): rep = rep.replace(st[a],st[a+1]) a += 2 print(rep)

Python3

2022-05-20

0 318

题解 | #记票统计#

import sys mamber, name, pepple, votes = [line.replace("\n", "").split() for line in sys.stdin] a = 0 for i in name: answer = votes.count(i) ...

Python3

2022-05-06

0 360

题解 | #[NOIP2010]数字统计#

L, R = map(int, input().split()) lis = [] for i in range(L, R + 1): lis += list(str(i)) print(lis.count("2"))

Python3

2022-05-03

0 330

题解 | #The Biggest Water Problem#

num = input() while True: if len(num) > 1: num = str(sum(list(map(int, list(num))))) else: print(num) break

Python3

2022-05-03

0 303

题解 | #数位五五#

a, b = map(int, input().split()) n = 0 for i in range(a, b + 1): ii = sum(list(map(int, list(str(i))))) # 现将数字转换成str再转成list再用map将元素转成int在将map对象转成l...

Python3

2022-05-03

0 357