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chelpkostya

Olympiad Rating: 1431
Problem rating: 440
Contribution: 0

Country: RU
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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

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