I was obtaining 34 for 7e4 too, but it's not a problem of the test suite. It just means that your code is not testing all possible combinations (and there are probably other numbers that will fail too). There is no known algorithm to generate the list of integer complexity (https://oeis.org/A005245), which means brute force is the only way to be sure. And brute force finds 32 for 7e4.
It someone doesn't believe 7e4 = (1+1)*(1+1)*(1+1)*(1+1)*(1+ (1+1)*(1+1+1)*(1+1+1)*(1+1+1)*(1+1+1)*(1+1+1)*(1+1+1)*(1+1+1)) (32 ones). Or 2^4*(1 + 2*3^7).
Most nonzero elements in row
Count from 0 to N^M in base N.
Find the sum of the elements in the "second" diagonal
Vectorizing, too easy or too hard?
Television Screen Dimensions
Words Count: A Cell Array Approach
Generating random matrix with given probability mass function
Histogram of histogram
Toeplitize a matrix
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