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An algorithm solves a big problem by splitting the input into smaller instances of the same problem. That idea is:
ACompilation
BRecursion
CIteration
DDuplication
Answer & Solution
Correct answer: B. Recursion
1. The smaller pieces are subproblems.
2. The same problem reappears inside itself.
3. It is recursion.
_Source: OpenStax Introduction to Computer Science, Chapter 3, Data Structures and Algorithms._
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