المسائل
The Bottom of a Graph#6223
سهل جدًا · Graphs
Dark Roads#6224
سهل · Greedy algorithms · Disjoint set union · Sorting
Beacons#6225
صعب جدًا · Graphs
Food Review#6226
صعب جدًا · Graphs · Shortest paths
From Dusk Till Down#6227
سهل · Graphs · Shortest paths
Fenwick Tree#6233
سهل جدًا · Prefix Sums · Data Structures · Implementation
Honey Bees#6239
سهل جدًا · Implementation
Repeating Decimals#6240
سهل · Implementation
Solutions of Cubic Equation#6241
صعب · Math · Implementation
Multiplication in a Dihedral Group#6242
سهل · Implementation · String suffix structures
Area Between Outer Hull and Inner Hull#6243
متوسط · Geometry
Sharkovski's Ordering#6244
سهل جدًا · Implementation
Metro Manila Detour#6245
سهل جدًا · Graphs
More Fun in Bicol#6246
صعب جدًا · Implementation
Interior Lattice Points#6247
سهل جدًا · Geometry
Permutations#6248
سهل جدًا · Math · Brute force
Planting Trees#6249
سهل جدًا · Sorting · Greedy algorithms
Boiling Vegetables#6250
سهل جدًا · Greedy algorithms
Number Trick#6251
سهل · Brute force
Robert Hood#6252
صعب · Geometry · Convex Hull
Virus Replication#6253
سهل جدًا · Implementation
Timebomb#6254
سهل جدًا · Implementation
Erase Securely#6255
سهل جدًا · Math
Pinball#6256
صعب جدًا · Geometry
Dance Reconstruction#6257
صعب · Math · Combinatorics · Number theory · Constructive Algorithms