Basecamp
    Home
    Problems
    Contests
    Courses
    Ranking
    Posts
Problems
Sign in

Problems

Combinatorics
Difficulty
Sort by
3162
Graph
Hard
3207
Double Necklace
Very hard
3238
Children`s shop
Medium
3260
How Many?
3331
Just Sum It
Easy
3376
Ball Painting
3419
Optimization of Combinatorial Circuits
Very hard
3558
Maximum in the Cycle of 1
3649
Disorder
Very easy
3652
How many prefixes?
Very easy
3656
Effectiveness of Permutations
Easy
3699
Placement of Rooks
Medium
3765
Inside Circle
Easy
3771
Generic Poker
Very hard
3885
Sequence Sum
Easy
3906
Initialization of an array
Hard
4015
Tichu
Hard
4026
Edge Case
4066
Spirograph
4163
Convex Permutomino
4252
Region
4263
30 chairs
Very easy
4266
Appease Inti
Very hard
4306
Sets
Easy
4335
Feather on the Shaman's Head
  • 1
  • …
  • 4
  • 5
  • 6
  • …
  • 9