Generate the d-Neighborhood of a String solved by 1353

The d-neighborhood Neighbors(Pattern, d) is the set of all k-mers whose Hamming distance from Pattern does not exceed d.

Generate the d-Neighborhood of a String

Find all the neighbors of a pattern.

Given: A DNA string Pattern and an integer d.

Return: The collection of strings Neighbors(Pattern, d).

Sample Dataset

ACG
1

Sample Output

CCG
TCG
GCG
AAG
ATG
AGG
ACA
ACC
ACT
ACG

Extra Dataset

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