Square a number
I would recommend more test cases, including some of matrices.
This user (ALBERT ALEXANDER STONIER) appears to have gamed the system, with fraudulent "likes" of this unremarkable solution submitted by 'sock-puppet' accounts. —DIV
Find the longest sequence of 1's in a binary sequence.
2208 Solvers
1284 Solvers
Getting the indices from a matrice
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306 Solvers
546 Solvers