初级
计算各账户当前最新余额
未完成
初级参考
完整示例代码供参考,建议自己理解后重新输入
def solve():
from pyodide.http import open_url
offices_csv = open_url("https://data.zuihe.com/dbd/core/state_02/offices.csv").read()
staff_csv = open_url("https://data.zuihe.com/dbd/core/state_02/staff.csv").read()
savings_products_csv = open_url("https://data.zuihe.com/dbd/core/state_02/savings_products.csv").read()
clients_csv = open_url("https://data.zuihe.com/dbd/core/state_02/clients.csv").read()
savings_accounts_csv = open_url("https://data.zuihe.com/dbd/core/state_02/savings_accounts.csv").read()
savings_account_transactions_csv = open_url("https://data.zuihe.com/dbd/core/state_02/savings_account_transactions.csv").read()
import sqlite3
import pandas as pd
from io import StringIO
conn = sqlite3.connect(':memory:')
pd.read_csv(StringIO(savings_account_transactions_csv)).to_sql('savings_account_transactions', conn, index=False, if_exists='replace')
result = pd.read_sql_query("""
SELECT account_id, running_balance AS current_balance
FROM savings_account_transactions
WHERE id IN (
SELECT MAX(id) FROM savings_account_transactions GROUP BY account_id
)
ORDER BY account_id
LIMIT 10
""", conn)
print(result.to_string(index=False))
conn.close()
示例
输入
solve()
期望输出
account_id current_balance
1 55016.03
2 20505.95
3 80023.10
4 14800.00
5 36010.50
6 14500.00
7 10000.00
8 37000.00
9 12200.00
10 66018.97
👑
升级 VIP
解锁全部题目,畅通无阻地学习
- ✓ 解锁全部训练包所有题目
- ✓ 查看完整参考代码和提示
- ✓ 浏览器内直接运行 Python 代码
- ✓ 自动批改 + 进度追踪
30天
¥18
1年
¥99
2年
¥158
3年
¥199