Earlier when submissions were sorted on the basis of running time(primary) and memory used(secondary), it was very easy to view the most efficient solutions as the best ones were on the first page.
Recently, the system was changed. The column for running time was removed and a new score column was added. Score became the primary basis of sorting, and memory used secondary. This made it very difficult to find the most efficient solutions. There are thousands of solutions with score 100, so score doesn’t help. When I check solutions with least memory taken, I find that they are quite inefficient in terms of running time. It may be just me, but I don’t care about memory used, as long as the solution is efficient in terms of running time.
I suggest we bring back the column for running time. We can then sort by score(primary), running time(secondary), and memory used(tertiary). The best solutions will be back on first page again for us learn from them.