Recently I started solving harder problems on At-Coder, USACO, Hacker-Earth etc. A lot of times I find myself spending excessive amount of time trying to understand these editorials. A lot of small points (even though they are critical in laying the base for understanding the problem) are usually completely disregarded. Due to this it becomes rather difficult to understand the latter part of the solution. How do you guys deal with this problem (if you face it)?