Problems
Messy Room#12212
Easy · Number theory · Prime factorization
A Minecraft House#12216
Very hard · Prefix Sums · Number theory · Sorting · Scanline / Sweep Line · Data Structures · Prime factorization
Poor Miku#12214
Hard · Combinatorics · Math · Greedy algorithms · Prefix Sums
Hazoq and tax evasion#12215
Very hard · Dynamic programming · Combinatorics · Prefix Sums · Number theory
The Main Character#12217
Medium · Number theory · Greedy algorithms