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全部文章（共43篇）

题解 | BFS

def checkIfExit(): if 'bob' not in s: return -1 for i in range(len(s)): if s[i:i+3] == 'bob': return i s = input...

2025-06-19

0 12

题解 | 斗兽棋

# 输赢的逻辑关系 res = [['elephant', 'tiger'], ['tiger', 'cat'], ['cat', 'mouse'], ['mouse', 'elephant']] line = input().split() # 正序匹配上，则是吃的关...

2025-06-19

0 10

题解 | 年轻人不讲5的

s = input().replace('5', '*') print(s)

2025-06-19

0 12

题解 | 记数问题

n, x = input().split() res = '' for i in range(1, int(n)+1): res += str(i) print(res.count(x))

2025-06-15

0 13

题解 | 数组计数维护

def number(): n, k = map(int, input().split()) a = list(map(int, input().split())) s = cnt = 0 for i in a: if i >= k: ...

2025-06-15

0 14

题解 | 牛牛的数学作业

def math(): n = int(input()) a = list(map(int, input().split())) resA = max(a) - min(a) mid = sum(a)/n resB = 0 for i in a: ...

2025-06-14

0 15

题解 | 左侧严格小于计数

n = int(input()) a = list(map(int, input().split())) b = [0 for i in range(0, n)] for i in range(0, n): for j in range(0, i): if a[j] <...

2025-06-14

0 15

题解 | 神秘石像的镜像序列

a = input().split() for i in a[-2::-1]: print(f'{i} ',end = '')

2025-06-14

0 14

题解 | 牛牛学数列6

n = int(input()) res = [0 for i in range(0, n)] res[0], res[1], res[2] = 0, 1, 1 for i in range(3, n): res[i] = res[i-3] + 2*res[i-2] + res[i-1] p...

2025-06-14

0 13

题解 | 牛牛数数

n = int(input()) for i in range(1, n+1): if '4' not in str(i) and i % 4 != 0: print(i)

2025-06-14

0 14