EasyNo. 2026LeetCode Premium

Low-Quality Problems — LeetCode 2026 Python Solution

Topics
Database
Reading time
2 min

Table schema

SQLTable schema
Table: Problems +-------------+------+ | Column Name | Type | +-------------+------+ | problem_id | int | | likes | int | | dislikes | int | +-------------+------+ In SQL, problem_id is the primary key column for this table. Each row of this table indicates the number of likes and dislikes for a LeetCode problem.

Example

SQLExample
+-------------+------+
| Column Name | Type |
+-------------+------+
| problem_id  | int  |
| likes       | int  |
| dislikes    | int  |
+-------------+------+
In SQL, problem_id is the primary key column for this table.
Each row of this table indicates the number of likes and dislikes for a LeetCode problem.

Python solution

PythonSolution
import duckdb
import pandas as pd

def solution(problems: pd.DataFrame) -> pd.DataFrame:
    con = duckdb.connect()
    con.register("Problems", problems)
    return con.execute("""SELECT problem_id
FROM Problems
WHERE likes / (likes + dislikes) < 0.6
ORDER BY problem_id;""").df()

Complexity

Time
O(n log n)(typical)
Space · auxiliary
O(n)

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Frequently asked questions

How hard is LeetCode 2026. Low-Quality Problems?

LeetCode 2026. Low-Quality Problems is rated Easy on LeetCode.

What topics does LeetCode 2026. Low-Quality Problems cover?

LeetCode 2026. Low-Quality Problems is tagged Database on LeetCode.

Is LeetCode 2026. Low-Quality Problems a premium problem?

Yes. LeetCode 2026. Low-Quality Problems is a LeetCode Premium problem, so the full statement and test cases require a paid LeetCode subscription.

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