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题解 | 找到每个人的任务

select person.id, name, content from person left join task on person.id = task.person_id

2025-08-04

0 39

题解 | 刷题通过的题目排名

select *, dense_rank() over( order by number desc ) as t_rank from passing_number

2025-08-04

0 33

题解 | 出现三次以上相同积分的情况

select number from grade group by number having count(*) >= 3

2025-08-04

0 62

题解 | 给出employees表中排名为奇数行的first_name

select first_name as first from employees where first_name in( select first_name from( select * from( select emp_no, first_nam...

2025-08-04

0 53

题解 | 求int型正整数在内存中存储时1的个数

n = int(input()) cnt = bin(n).count('1') print(f"{cnt}")

2025-08-04

0 44

题解 | 字符串排序

n = int(input()) dic = [] for i in range(n): dic.append(input()) dic = sorted(dic) for i in dic: print(f"{i}")

2025-08-04

0 52

题解 | 句子逆序

s = input().split(' ') for i in s[::-1]: print(i, end=' ')

2025-08-04

0 44

题解 | 字符串反转

s = input() print(f"{s[::-1]}")

2025-08-04

0 29

题解 | 数字颠倒

n = input() print(f"{n[::-1]}")

2025-08-04

0 32

题解 | 字符个数统计

s = input() length = len(set(s)) print(f"{length}")

2025-08-04

0 48