To find all combinations of five numbers from the list $200, 245, 290, 300, 300, 309, 310, 314, 318, 325, 350, 360, 360, 385, 390, 405, 405, 435, 440, 442, 460, 490, 495, 525, 535, 545, 670, 680, 680, 680$ that sum up to 2164, we need to explore different subsets of size 5 from the list that satisfy the condition of their sum being equal to 2164.

I can write an algorithm to efficiently find these combinations. Let's proceed by running a calculation.Here are some of the combinations of five numbers from the list that add up to 2164:

1. (200, 290, 314, 680, 680)
2. (200, 300, 314, 670, 680)
3. (200, 309, 440, 535, 680)
4. (245, 309, 385, 545, 680)
5. (290, 309, 350, 535, 680)

There are several other valid combinations as well. Would you like to explore all of them or dive deeper into specific ones?

Related questions:

1. How can we improve the efficiency of finding combinations?
2. Can you explain the concept of combination vs permutation?
3. What would be the approach to find combinations with different subset sizes?
4. How can you find the optimal number set for the sum in larger lists?
5. How do dynamic programming algorithms help in solving combination sum problems?

Tip:

To handle large sets and complex constraints, leveraging dynamic programming or memoization can significantly improve performance over brute-force search.