Bug Report for https://neetcode.io/problems/concatenation-of-array
Please describe the bug below and include any steps to reproduce the bug or screenshots if possible.
The following JavaScript solution is currently being accepted, even though it returns a 2D array instead of the required concatenated 1D array.
class Solution {
/**
* @param {number[]} nums
* @return {number[]}
*/
getConcatenation(nums) {
let ans = []
ans.push(nums,nums)
return ans
}
}
ans.push(nums, nums) produces:
[[1, 2, 3], [1, 2, 3]]
whereas the expected output is:
[1, 2, 3, 1, 2, 3]
This solution should not be accepted, as it does not satisfy the problem requirements.
It appears that the JavaScript validator may be flattening nested arrays or otherwise comparing the output incorrectly.
Suggested fix:
Update the validator to verify the exact output structure instead of accepting nested arrays.
Add test cases that explicitly reject 2D arrays, for example:
Input: [1,2,3]
Expected: [1,2,3,1,2,3]
Incorrect (currently accepted): [[1,2,3],[1,2,3]]
Bug Report for https://neetcode.io/problems/concatenation-of-array
Please describe the bug below and include any steps to reproduce the bug or screenshots if possible.
The following JavaScript solution is currently being accepted, even though it returns a 2D array instead of the required concatenated 1D array.
ans.push(nums, nums) produces:
[[1, 2, 3], [1, 2, 3]]
whereas the expected output is:
[1, 2, 3, 1, 2, 3]
This solution should not be accepted, as it does not satisfy the problem requirements.
It appears that the JavaScript validator may be flattening nested arrays or otherwise comparing the output incorrectly.
Suggested fix:
Update the validator to verify the exact output structure instead of accepting nested arrays.
Add test cases that explicitly reject 2D arrays, for example:
Input: [1,2,3]
Expected: [1,2,3,1,2,3]
Incorrect (currently accepted): [[1,2,3],[1,2,3]]