Is Project Euler better than LeetCode for "gut checking"?
I've probably done 300 or so LC, and do some every week, mostly as an insurance policy for technical interviews if I ever opportunistically interviewed in a short time frame.
I've probably done 300 or so LC, and do some every week, mostly as an insurance policy for technical interviews if I ever opportunistically interviewed in a short time frame.
I'd recommend LC to someone who has an interview in a month, PE to someone who has one in a year.
In the discussions many people post their solutions, and those often have bugs in obscure cases that the LeetCode grader doesn't hit. Another common thing is for the posted solutions to always give the correct answer, but miss the time or space constraints that the problem statement asked for.
I've found that reviewing those other solutions to find those issues to be quite instructive. Also, there will sometimes be a solution in there that is better than mine, which is also instructive.