This solution is correct. The only reason it fails at test 4 is because the test suite can' t deal correctly with any sets that have elements that are bigger than 250.
This solution has an error that will only manifest when n >= 13. The corrected version is Solution 1200230.
12394 Solvers
Which values occur exactly three times?
3818 Solvers
Replace all zeros and NaNs in a matrix with the string 'error'
90 Solvers
Find out missing number from a vector of 9 elements
245 Solvers
260 Solvers
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