Solves
O(n log n)
points 1 polygon 1 sorting 1 stack 1 geodata 1 science and physics 1 classic 1 contests 1
Problems
SRT Searching and sorting
DS Data structures
GRA Graphs
STR Strings and text
DP Dynamic programming
PAR Paradigms
NUM Numbers and algebra
GEO Geometry
NUM~ Numerical methods
SYS Systems and big data
ML Data and machine learning
RND Randomness
TEC Techniques