Given a permutation vector perm (a vector of n elements containing all the elements from 1 to n in some order), return the permutation vector invPerm such that perm(invPerm) is the a list of elements from 1 to n.
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Solution 938235
Why the solutions are not displayed in the solution map? why the solution stats still show "0 solver" while there are indeed several solvers already?
The solution map appears 9 hours after the first solution was submitted. But it still shows "0 solvers".
This is fixed now.
Thanks for the quick fix!