Maybe you should say that the partition must have size greater than ceil(log2(x)/2)), since you test this at the test suite. The total number of partitions that a number has may be huge, even if we consider only unique sets (ignoring the order): a sum of binomial coefficients from 1 to the number-1 (where there is only one possible set of ones).
Sums with Excluded Digits
Back to basics 20 - singleton dimensions
Back to basics 21 - Matrix replicating
Sum the Digits of a Number
Who am I ?
Quine : write a quine in MATLAB
Split bread like the Pharaohs - Egyptian fractions and greedy algorithm
All Humans are Created Equal - Pareto Equality
Numbers at bit-boundary
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