622 B
622 B
Powerset
What is this exercise about?
Imagine you have a bag of numbered balls, and you want to find all the different ways you can pick some balls so that the numbers on them add up to a specific target number.
This is exactly what the powerset exercise does!
Real-world example
Let's say you have these numbered balls: 1, 2, 3, 4, 5
And you want to find all the ways to pick balls that add up to 5.
Here are all the possible ways:
- Pick just ball 5 → 5 = 5
- Pick balls 1 and 4 → 1 + 4 = 5
- Pick balls 2 and 3 → 2 + 3 = 5
So the answer would be:
5
1 4
2 3