2026. LowQuality Problems
Description
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.
Find the IDs of the lowquality problems. A LeetCode problem is lowquality if the like percentage of the problem (number of likes divided by the total number of votes) is strictly less than 60%
.
Return the result table ordered by problem_id
in ascending order.
The result format is in the following example.
Example 1:
Input: Problems table: ++++  problem_id  likes  dislikes  ++++  6  1290  425   11  2677  8659   1  4446  2760   7  8569  6086   13  2050  4164   10  9002  7446  ++++ Output: ++  problem_id  ++  7   10   11   13  ++ Explanation: The like percentages are as follows:  Problem 1: (4446 / (4446 + 2760)) * 100 = 61.69858%  Problem 6: (1290 / (1290 + 425)) * 100 = 75.21866%  Problem 7: (8569 / (8569 + 6086)) * 100 = 58.47151%  Problem 10: (9002 / (9002 + 7446)) * 100 = 54.73006%  Problem 11: (2677 / (2677 + 8659)) * 100 = 23.61503%  Problem 13: (2050 / (2050 + 4164)) * 100 = 32.99002% Problems 7, 10, 11, and 13 are lowquality problems because their like percentages are less than 60%.
Solutions
Solution 1
SQL Code

