MathForces: Math Olympiads
MathForces - Math Olympiadsβeta
Login Register

sergei

Olympiad Rating: 1166
Problem rating: 426
Contribution: 0

Country: RU
Occupation: Other
About: 😊


Problems solved: 131

Numbers ratio Sum of four Equilateral Triangles
Parking Half of Octahedron Temirlan's cake
Test Tommorow's day Cubical squares
Random answer 2020 Palindromes Divisibility by 4
Not your business NRD pair Money date
Bingo! 2020 digit 5 instead of 1
D Flags Bools and cows Novirus
Tricky Odd divisors One three-digit number
Squared fours Relatively prime with 2020 Square multiples of 24
Area of triangle 2+1 Sum of digits 2020
Friendly rooks U turn Small triangular numbers
Fancy meal Fancy limit Zero sequence
!Fancy cubic !Fancy polygon Weird equation
VNT Odd factors Lucky numbers
Function Powered Numbers Base4
Digital Cubes 6-sums Sum of Digits
Discriminant MathForces Store Cyclic Q
Maximum of Minimum Regular Polygons Sequence
Number Coloring Rational Polynomial Rational Irrational
Lin Jumper Five Primes Rotating Hexagon
Product of areas Checkboard Semiperimeter
Max Area New Cake Sum of Squares
Just Easy Sum Ordered papers Simple Altai
Inverse Sum in Triangle Triangle in Hexagon Hold me
Friends Playing Fractions Friendly Team
Prime Sets Rooks Triangle and Square
Quadratic Zeros and Ones Lin's Numbers
Pencils Cube Cube Square Not constant
Flights Half Integers Poly
Lin's Octagon Lin does shopping Reverse Product
Functional Eq Binary Sum Factorial Factor
Simple sum Cuboid 0,1,2 polynomial
Lin's Game Sharingan Gineq
Obtuser Seven eleven Unfair Game
Sharp inequality Small triangle Almost fixed
Polynomial Probability Concetric Not fibbo
New FE Big set Cemicirlces
Concatenate Chords Revolution
Love Triangle Nice Integer Monochromatics
Air MF Smallest number Equiangular Hexagon
Negative roots Random numbers Soccer Game
Independence Irreducible Fractions Cyclic Areas
Smallest degree Sum probability Divisible sets
Integer sequence Hexagonial

Games

Under construction