
beginner
10 min read
Sqrt(x)
The fastest way to solve this problem is to stop searching for a square root and search for the last integer that is still feasible.
View solutionSearch an answer space by building a monotonic feasibility test and locating the boundary between possible and impossible values.
Problems
Practice problems that share this primary solution pattern and compare the clues that reveal it.

The fastest way to solve this problem is to stop searching for a square root and search for the last integer that is still feasible.
View solution