Divide and Conquer - Decrease and conquer

3 important questions on Divide and Conquer - Decrease and conquer

Decrease by a constant

The size of an instance is reduced by the same constant on each iteration of the algorithm.

Decrease by a constant factor

This technique suggests reducing a problem instance by the same constant factor on each iteration of the algorithm

Variable size decrease

The size-reduction pattern varies from one iteration of an algorithm to another. Example: Euclid's algorithm for the greatest common divisor.

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