Školjka
Archive
Problems
Register
NT
×
Log in
☰
Search
NT
×
Search
All sources
International Competitions
-- International Mathematical Olympiad
-- Middle European Mathematical Olympiad
Local Competitions
-- Croatian Competitions
-- -- Croatian Mathematical Olympiad
-- -- Croatian National Competitions
-- -- -- Grade 9
-- -- -- Grade 10
-- -- -- Grade 11
-- -- -- Grade 12
-- -- Croatian County-Level Competitions
-- -- -- Grade 9
-- -- -- Grade 10
-- -- -- Grade 11
-- -- -- Grade 12
-- -- Croatian School-Level Competitions
-- -- -- Grade 9
-- -- -- Grade 10
-- -- -- Grade 11
-- -- -- Grade 12
All years
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000
1999
1998
1997
1996
1995
1994
1993
1992
1991
1990
1989
1988
1987
1986
1985
1984
1983
1982
1981
1979
1978
1977
1976
1975
1974
1973
1972
1971
1970
1969
1968
1967
1966
1965
1964
1963
1962
1961
1960
1959
455 results
❏
▤
Problem
Source
Tags
Grade 12 2007 Problem 2
Grade 12 2007
NT
Recurrences
Coprime
Seq
Grade 12 2009 Problem 4
Grade 12 2009
Divisibility
NT
Grade 12 2010 Problem 1
Grade 12 2010
NT
Powers
Seq
Grade 12 2010 Problem 3
Grade 12 2010
Composite
NT
Coprime
Grade 12 2011 Problem 3
Grade 12 2011
Counting
NT
Rational
Grade 12 2012 Problem 1
Grade 12 2012
Algebra
Construction
NT
Grade 12 2012 Problem 2
Grade 12 2012
Algebra
NT
Quadratics
Recurrences
Grade 12 2012 Problem 4
Grade 12 2012
Divisibility
NT
Grade 12 2012 Problem 5
Grade 12 2012
Combinatorics
NT
Coprime
Tables
Grade 12 2013 Problem 1
Grade 12 2013
Divisibility
NT
Grade 12 2013 Problem 5
Grade 12 2013
Combinatorics
NT
Coprime
Grade 12 2014 Problem 1
Grade 12 2014
Divisibility
Eq
NT
Grade 12 2015 Problem 3
Grade 12 2015
Diophantine
Divisibility
NT
Grade 12 2016 Problem 4
Grade 12 2016
Diophantine
NT
Powers
Grade 12 2017 Problem 1
Grade 12 2017
Divisibility
Inequalities
NT
Grade 12 2018 Problem 3
Grade 12 2018
Functional
NT
Grade 12 2019 Problem 5
Grade 12 2019
Algebra
Divisibility
Functional
NT
Grade 12 2020 Problem 5
Grade 12 2020
Diophantine
Exp
NT
Grade 12 2021 Problem 3
Grade 12 2021
Diophantine
NT
Grade 12 2022 Problem 1
Grade 12 2022
Diophantine
Factorial
NT
Powers
Grade 12 2023 Problem 5
Grade 12 2023
Divisibility
Functional
NT
Grade 12 2024 Problem 5
Grade 12 2024
Divisibility
Factorial
NT
Sums
Grade 12 2025 Problem 1
Grade 12 2025
Divisibility
Mod
NT
Grade 12 2025 Problem 3
Grade 12 2025
Divisibility
NT
Grade 12 2026 Problem 3
Grade 12 2026
Divisibility
GCD
NT
Grade 12 2020 Problem 5
Grade 12 2020
Mod
NT
Powers
Grade 12 2020 Problem 7
Grade 12 2020
Divisibility
NT
Grade 12 2021 Problem 4
Grade 12 2021
Divisibility
NT
Recurrences
Grade 12 2021 Problem 5
Grade 12 2021
Mod
NT
Powers
Grade 12 2022 Problem 7
Grade 12 2022
Diophantine
NT
Primes
Grade 12 2023 Problem 2
Grade 12 2023
Divisibility
Mod
NT
Grade 12 2023 Problem 7
Grade 12 2023
Exp
NT
Primes
Grade 12 2024 Problem 2
Grade 12 2024
NT
Primes
Sums
Grade 12 2024 Problem 4
Grade 12 2024
GCD
NT
Systems
Grade 12 2025 Problem 4
Grade 12 2025
Diophantine
NT
Grade 12 2026 Problem 1
Grade 12 2026
NT
Recurrences
Radicals
Grade 12 2026 Problem 5
Grade 12 2026
Digits
NT
Seq
Grade 12 2015 Problem 4
Grade 12 2015
Counting
Digits
Divisibility
NT
Grade 12 2016 Problem 2
Grade 12 2016
Construction
NT
Rational
Grade 12 2016 Problem 4
Grade 12 2016
Diophantine
NT
Quadratics
Grade 12 2017 Problem 2
Grade 12 2017
Counting
Diophantine
NT
Grade 12 2018 Problem 1
Grade 12 2018
Counting
Digits
NT
Grade 12 2018 Problem 5
Grade 12 2018
NT
Primes
Seq
Grade 12 2019 Problem 1
Grade 12 2019
Diophantine
Factorial
NT
Grade 12 2020 Problem 4
Grade 12 2020
Diophantine
NT
Quadratics
Grade 12 2021 Problem 1
Grade 12 2021
Factorial
NT
Powers
Primes
Grade 12 2022 Problem 2
Grade 12 2022
Divisibility
NT
Seq
Grade 12 2022 Problem 3
Grade 12 2022
Diophantine
NT
Powers
Grade 12 2023 Problem 1
Grade 12 2023
Diophantine
Exp
Factorial
NT
Grade 12 2024 Problem 1
Grade 12 2024
Mod
NT
Remainders
‹ Prev
1
…
7
8
9
10
Next ›