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全部文章（共29篇）

题解 | 计算某字符出现次数

sequence = input() symbol = input() def occ_check(seq, sym): let_count = 0 dig_count = 0 # The function needs to check whether the input...

2025-04-03

0 30

题解 | 字符串最后一个单词的长度

sen = input() word_list = list(sen.split(" ")) print(len(word_list[-1]))

2025-04-03

0 29

题解 | 字符个数统计

s = input() def sym_check(s): # Keep only the unique elements: s_uni = "" for char in s: if char not in s_uni: ...

2025-04-03

0 31

题解 | 密码强度等级

password = input() def psw_score(psw): # 1. Length check: len_score = 0 psw_len = len(psw) if psw_len >= 8: len_score = 25...

2025-04-03

0 29

题解 | 等差数列

n = int(input()) res_list = [2] for i in range(1, n): num = res_list[i-1] + 3 res_list.append(num) output = sum(res_list) print(output)

2025-04-03

0 34

题解 | 尼科彻斯定理

n = int(input()) def nk_fst(n): res = [1] for i in range(1, n): dif = 2*i num = res[i-1] + dif res.append(num) re...

2025-04-02

0 28

题解 | 不要三句号的歪

nums = list(input().split(',')) s = int(nums[1]) e = int(nums[-1]) print(e - s - 1)

2025-04-02

0 34

题解 | 小红的合数寻找

x = int(input()) if x == 1: print(-1) elif x == 2: print(4) else: for i in range(x, 2*x+1): if i%2==0: print(i) ...

2025-04-02

0 38

题解 | 小红的正整数计数

from contextlib import nullcontext l, r = map(int, input().split()) num_list = [] for i in range(l, r+1): if i%2==0: num_list.append(...

2025-04-02

0 35