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题解 | #挑7#

def f(n): # 判断n是不是与7有关的数 c = 0 for i in range(1,n+1): if (i%7 == 0) or ('7' in str(i)): c += 1 return c n = int(input...

2024-10-31

0 21

题解 | #四则运算#

s = input() # 3+2*{1+2*[-4/(8-6)+7]} s = s.replace("{", "(") s = s.replace("}", ")") s = s.replace("[&qu...

2024-10-30

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题解 | #从单向链表中删除指定值的节点#

# 2024年10月30日周三下午16:27 ls = input().split() # 6 2 1 2 3 2 5 1 4 5 7 2 2 n = int(ls[0]) h = ls[1] ls1 = ls[2:-1:2] # 切片的格式：[起始位置：结束为止：步长] #值...

2024-10-30

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题解 | #名字的漂亮度#

N = int(input()) for i in range(N): s = input().lower() d = {} for i in s: if i not in d: d[i] = s.count(i) ss = s...

2024-10-30

0 31

题解 | #迷宫问题#

# 2024年10月30日周三上午15:22 def walk(i, j, pos=[(0, 0)]): if j + 1 < m and maze[i][j + 1] == 0: if (i, j + 1) not in pos: ...

2024-10-30

0 47

题解 | #求小球落地5次后所经历的路程和第5次反弹的高度#

H1 = int(input()) H2 = H1 / 2 H3 = H2 / 2 H4 = H3 / 2 H5 = H4 / 2 H6 = H5 / 2 su = H1 + 2 * (H2 + H3 + H4 + H5) print(su) print(H6)

2024-10-30

0 40

题解 | #字符串加密#

# 2024年10月30日周三上午11:12 AA = "abcdefghijklmnopqrstuvwxyz" key = input() s = input() k = "" res = "" for i in key: ...

2024-10-30

0 39

题解 | #整数与IP地址间的转换#

# 2024年10月30日周三上午10:04 ip = list(map(int, input().split("."))) n = int(input()) s = "" for i in ip: t = bin(i)[2:].zfill...

2024-10-30

0 40

题解 | #密码截取#

while True: try: s = input() p = 0 for i in range(len(s)): for j in range(i,len(s)): if s[i] =...

2024-10-30

0 35

题解 | #密码截取#

while True: try: s = input() p = 0 for i in range(len(s)): for j in range(i,len(s)): if s[i] =...

2024-10-30

0 38