MathForces: Math Olympiads
MathForces - Math Olympiadsβeta
Login Register

All problems with tag: Combinatorics



View all problems

Name сортировать Difficulty сортировать Users
Solved сортировать		 Tags сортировать
Half Integers 500 2 Combinatorics, Geometry
Sum of four 100 314 Combinatorics, Digits
Divisible sets 300 4 Combinatorics
Ordered papers 300 26 Combinatorics
Convex triangle 400 37 Geometry, Combinatorics
Zeros and Ones 300 17 Combinatorics
C Sum 300 95 Algebra, Combinatorics, Formulas
2020 Palindromes 100 291 Combinatorics, Palindromes
Quadratic Sets 400 4 Combinatorics, Sets, Algebra
Friendly rooks 200 135 Combinatorics, Chess
Independence 300 10 Combinatorics, Probabilities
Rooks 600 14 Combinatorics
Friends Playing 600 16 Combinatorics
Lin the Racoon's Debut 600 16 Combinatorics, Raccoon
School Clubs 500 3 Combinatorics
Reverse Product 400 33 Combinatorics, Number-Theory
Air MF 500 5 Combinatorics
Revolution 300 16 Combinatorics
Simple expression 300 75 Algebra, Combinatorics
Unfair Game 400 29 Combinatorics
Circled 700 12 Geometry, Combinatorics
Switchers 400 42 Combinatorics, Sets
More dominos 400 28 Combinatorics
Money date 100 266 Combinatorics, Probabilities
Equilateral Triangles 200 194 Combinatorics, Grids
Random numbers 400 14 Algebra, Combinatorics
Soccer Game 500 9 Combinatorics
Half of Octahedron 400 123 Combinatorics, Graphs
Friendly Team 400 10 Combinatorics
Prime Sets 500 8 Combinatorics, Number-Theory
MathForces Store 500 32 Combinatorics
Math lesson 400 39 Number-Theory, Combinatorics
Parking 300 178 Combinatorics
Obtuser 400 18 Combinatorics, Geometry
Almost fixed 400 10 Combinatorics, Algebra
Subsets Collection 600 24 Combinatorics, Sets
Love Triangle 400 4 Combinatorics
Checkboard 600 3 Combinatorics
0,1,2 polynomial 400 20 Combinatorics, Algebra
Lin Jumper 500 14 Combinatorics
Fill the square 400 16 Combinatorics, Algebra
Rotating Hexagon 600 2 Geometry, Combinatorics
Sum probability 300 72 Combinatorics, Algebra, Probablilities
Factorial Factor 200 48 Number-Theory, Combinatorics
Weird games 500 20 Combinatorics
Again these rooks 600 55 Combinatorics, Boards
Bingo! 200 124 Combinatorics, Probabilities
Big set 400 15 Combinatorics
Regular Polygons 200 44 Geometry, Combinatorics
Pencils 400 7 Combinatorics
!Fancy grid 700 8 Combinatorics, Graphs
Where is my husband 500 23 Combinatorics, True-False
Infinite game 500 38 Combinatorics, Games
Lin's Octagon 300 39 Combinatorics
!Fancy sequence 600 8 Combinatorics, Number-Theory
Pentagon 500 17 Geometry, Combinatorics, Pentagons
Monochromatics 400 5 Combinatorics, Graphs
Total inversion 500 31 Combinatorics, Geometry
Lin's Game 400 9 Combinatorics, Games
Number Coloring 400 21 Combinatorics
Novirus 300 78 Combinatorics, Graphs
Bools and cows 200 146 Random, Combinatorics
Flights 500 9 Combinatorics, Graphs