MathForces: Math Olympiads
MathForces - Math Olympiads
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chelpkostya
Olympiad Rating:
1431
Problem rating:
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Country: RU
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MathForces Round 14: Raccoons
1431
MathForces Round 13: Beginners
1347
QARAнтин: Комбинаторика
1200
Problems solved: 137
Equilateral Triangles
Half of Octahedron
Parking
Again these rooks
Oh-matrix
Friends Playing
Ordered papers
Expanding brackets
NRD pair
2020 digit
Sum of four
New FE
Product of areas
Test
Tommorow's day
Just sequence
Cubical squares
Not your business
Lucky numbers
Sum of digits 2020
Triangle in Hexagon
Temirlan's cake
Numbers ratio
Divisibility by 4
2020 Palindromes
Squared fours
C Sum
Just Easy Sum
Triangle in hyperbola
Money date
Powers of 6
Square multiples of 24
Area of triangle
2+1
Odd divisors
Concetric
Relatively prime with 2020
Random answer
Friendly rooks
All such
Solutions on the interval
Bingo!
Semiperimeter
Not fibbo
Diameter
Minimizing Fibb
Function
Sum probability
Arithmetic derivative
Gineq
6-sums
Small triangular numbers
Sum of Digits
U turn
One three-digit number
Exactly two roots
Cool-divisble numbers
Max Area
Five Primes
Digital Cubes
Fill the square
Binary Sum
Factorial Factor
Simple sum
Similar polynomials
More dominos
!Fancy cubic
VNT
Many digits
Fractions
Four on a circle
Simple expression
Math lesson
Hold me
Positive product of sums
Prime Sets
Angle chasing
Prime powers
Polynomial without 4
Bools and cows
Lin's Octagon
New Cake
Sqaure in square
Permutational Polynomial
Daniyar's Friends
Base4
ADAD
Weird equation
Odd polynomial
Flip
Rational Polynomial
5 instead of 1
Sum of Squares
Point O
0,1,2 polynomial
Regular Polygons
Sequenta
Switchers
Convex triangle
Sequence
Maximum of Minimum
Reverse Product
Tricky polynomial
Also palindrome
Zero sequence
ADAD (Duplicate)
MTMTK System
6 Apart
Product of differences
Too much
Triangle and Square
Viet said
Special square
First geometry
Discriminant
Rational Irrational
Total inversion
Fancy meal
Pentagon
Polynomial Probability
What a function
Quadratic
Zeros and Ones
Lin's Numbers
Pencils
Flights
Not constant
Cube Cube Square
Poly
Tan-Sin
Cuboid
D Flags
Cyclic Q
Powered Numbers
Powered Numbers (Duplicate)
Seven eleven
Irreducible Fractions
Games
Under construction