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Logic & Puzzles

If a recursive algorithm sorting a protein sequence encounters a subsequence of length 1, which consequence follows?

A)Stack overflow becomes more likely
B)It returns the subsequence unchanged
C)It splits the subsequence further
D)It throws an out-of-bounds exception

💡 Explanation

A subsequence of length 1 is a base case; the algorithm uses the base case to stop recursion and return the trivial solution because there are no further subdivisions necessary. Therefore, the algorithm returns the subsequence unchanged, rather than infinitely subdividing or throwing exceptions, which would happen in error cases.

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