I'm comfortable enough with time complexity, and I like to think I'll sniff out a logarithmic-class solution when I've written one, but I don't think I've ever

I'm comfortable enough with time complexity, and I like to think I'll sniff out a logarithmic-class solution when I've written one, but I don't think I've ever had a problem with a candidate bucketing a problem into sublinear/linear/superlinear.