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• 13:16, 2 March 2024 (diff | hist) . . (+2)‎ . . 2023 USAMO Problems ‎ (→‎Problem 3)
• 07:45, 24 February 2023 (diff | hist) . . (-73)‎ . . 2013 TSTST Problems ‎ (current)
• 07:45, 24 February 2023 (diff | hist) . . (+74)‎ . . 2013 TSTST Problems ‎
• 07:44, 24 February 2023 (diff | hist) . . (+15)‎ . . 2013 TSTST Problems ‎
• 07:44, 24 February 2023 (diff | hist) . . (+6)‎ . . 2013 TSTST Problems ‎
• 07:43, 24 February 2023 (diff | hist) . . (+5,093)‎ . . N 2013 TSTST Problems ‎ (Created page with "==Day 1== ===Problem 1=== Let <math>ABC</math> be a triangle and <math>D</math>, <math>E</math>, <math>F</math> be the midpoints of arcs <math>BC</math>, <math>CA</math>, <mat...")
• 07:50, 23 February 2023 (diff | hist) . . (+33)‎ . . 2019 ELMO Problems ‎ (current)
• 07:49, 23 February 2023 (diff | hist) . . (-44)‎ . . 2019 ELMO Problems ‎ (→‎Problem 3)
• 07:49, 23 February 2023 (diff | hist) . . (+4,656)‎ . . N 2019 ELMO Problems ‎ (Created page with "==Day 1== ===Problem 1=== Let <math>P(x)</math> be a polynomial with integer coefficients such that <math>P(0)=1</math>, and let <math>c > 1</math> be an integer. Define <math...")
• 07:38, 22 February 2023 (diff | hist) . . (0)‎ . . 2018 TSTST Problems ‎ (→‎Problem 7) (current)
• 07:38, 22 February 2023 (diff | hist) . . (-24)‎ . . 2018 TSTST Problems ‎ (→‎Problem 4)
• 07:37, 22 February 2023 (diff | hist) . . (-1)‎ . . 2018 TSTST Problems ‎ (→‎Problem 7)
• 07:36, 22 February 2023 (diff | hist) . . (+1)‎ . . 2018 TSTST Problems ‎ (→‎Problem 7)
• 07:36, 22 February 2023 (diff | hist) . . (-17)‎ . . 2018 TSTST Problems ‎ (→‎Problem 7)
• 07:35, 22 February 2023 (diff | hist) . . (+5,658)‎ . . N 2018 TSTST Problems ‎ (Created page with "==Day 1== ===Problem 1=== As usual, let <math>{\mathbb Z}[x]</math> denote the set of single-variable polynomials in <math>x</math> with integer coefficients. Find all functio...")
• 13:13, 24 December 2022 (diff | hist) . . (+1)‎ . . 2022 EGMO Problems ‎ (→‎Problem 6) (current)
• 13:12, 24 December 2022 (diff | hist) . . (-50)‎ . . 2014 EGMO Problems ‎ (→‎Problem 5) (current)
• 13:08, 24 December 2022 (diff | hist) . . (+3,581)‎ . . N 2022 EGMO Problems ‎ (Created page with "==Day 1== ===Problem 1=== Let <math>ABC</math> be an acute-angled triangle in which <math>BC<AB</math> and <math>BC<CA</math>. Let point <math>P</math> lie on segment <math>AB...")
• 13:07, 24 December 2022 (diff | hist) . . (+2,978)‎ . . N 2021 EGMO Problems ‎ (Created page with "==Day 1== ===Problem 1=== The number 2021 is fantabulous. For any positive integer <math>m</math>, if any element of the set <math>\{m, 2m+1, 3m\}</math> is fantabulous, then...") (current)
• 13:05, 24 December 2022 (diff | hist) . . (+3,363)‎ . . N 2020 EGMO Problems ‎ (Created page with "==Day 1== ===Problem 1=== The positive integers <math>a_0, a_1, a_2, \ldots, a_{3030}</math> satisfy<cmath>2a_{n + 2} = a_{n + 1} + 4a_n \text{ for } n = 0, 1, 2, \ldots, 3028...") (current)
• 13:03, 24 December 2022 (diff | hist) . . (0)‎ . . 2017 EGMO Problems ‎ (current)
• 13:02, 24 December 2022 (diff | hist) . . (-9)‎ . . 2018 EGMO Problems ‎ (→‎Problem 6) (current)
• 13:02, 24 December 2022 (diff | hist) . . (-1)‎ . . 2019 EGMO Problems ‎ (→‎Problem 5) (current)
• 13:01, 24 December 2022 (diff | hist) . . (+3,932)‎ . . N 2019 EGMO Problems ‎ (Created page with "==Day 1== ===Problem 1=== Find all triples <math>(a, b, c)</math> of real numbers such that <math>ab + bc + ca = 1</math> and <cmath>a^2b + c = b^2c + a = c^2a + b.</cmath>...")
• 12:59, 24 December 2022 (diff | hist) . . (+3)‎ . . 2017 EGMO Problems ‎ (→‎Problem 5)
• 12:58, 24 December 2022 (diff | hist) . . (-6)‎ . . 2018 EGMO Problems ‎ (→‎Problem 3)
• 12:58, 24 December 2022 (diff | hist) . . (-27)‎ . . 2018 EGMO Problems ‎
• 12:56, 24 December 2022 (diff | hist) . . (+4,703)‎ . . N 2018 EGMO Problems ‎ (Created page with "==Day 1== ===Problem 1=== Let <math>ABC</math> be a triangle with <math>CA=CB</math> and <math>\angle{ACB}=120^\circ</math>, and let <math>M</math> be the midpoint of <math>AB...")
• 12:53, 24 December 2022 (diff | hist) . . (+2)‎ . . 2017 EGMO Problems ‎ (→‎Problem 2)
• 12:53, 24 December 2022 (diff | hist) . . (-25)‎ . . 2017 EGMO Problems ‎ (→‎Problem 2)
• 12:52, 24 December 2022 (diff | hist) . . (-49)‎ . . 2017 EGMO Problems ‎
• 12:51, 24 December 2022 (diff | hist) . . (+4,231)‎ . . N 2017 EGMO Problems ‎ (Created page with "==Day 1== ===Problem 1=== Let <math>ABCD</math> be a convex quadrilateral with <math>\angle DAB=\angle BCD=90^{\circ}</math> and <math>\angle ABC> \angle CDA</math>. Let <math...")
• 12:49, 24 December 2022 (diff | hist) . . (+2,948)‎ . . N 2016 EGMO Problems ‎ (Created page with "==Day 1== ===Problem 1=== Let <math>n</math> be an odd positive integer, and let <math>x_1,x_2,\cdots ,x_n</math> be non-negative real numbers. Show that<cmath> \min_{i=1,\ldo...") (current)
• 12:47, 24 December 2022 (diff | hist) . . (0)‎ . . 2014 EGMO Problems ‎ (→‎Day 2)
• 12:47, 24 December 2022 (diff | hist) . . (0)‎ . . 2014 EGMO Problems ‎ (→‎Day 1)
• 12:47, 24 December 2022 (diff | hist) . . (+2,613)‎ . . N 2015 EGMO Problems ‎ (Created page with "==Day 1== ===Problem 1=== Let <math>\triangle ABC</math> be an acute-angled triangle, and let <math>D</math> be the foot of the altitude from <math>C.</math> The angle bisecto...") (current)
• 12:45, 24 December 2022 (diff | hist) . . (0)‎ . . 2014 EGMO Problems ‎ (→‎Problem 3)
• 12:45, 24 December 2022 (diff | hist) . . (+2,738)‎ . . N 2014 EGMO Problems ‎ (Created page with "==Day 1== ===Problem 1=== Determine all real constants <math>t</math> such that whenever <math>a</math>, <math>b</math> and <math>c</math> are the lengths of sides of a triang...")
• 12:42, 24 December 2022 (diff | hist) . . (-66)‎ . . 2012 EGMO ‎ (current)
• 12:41, 24 December 2022 (diff | hist) . . (+9)‎ . . 2012 EGMO ‎
• 12:40, 24 December 2022 (diff | hist) . . (+18)‎ . . 2012 EGMO ‎
• 12:39, 24 December 2022 (diff | hist) . . (+501)‎ . . N 2012 EGMO ‎ (Created page with "'''2012 EGMO''' problems and solutions. The first link contains the full set of test problems. The rest contain each individual problem and its solution. 2012 EGMO Prob...")
• 12:37, 24 December 2022 (diff | hist) . . (+2,583)‎ . . N 2013 EGMO Problems ‎ (Created page with "==Day 1== ===Problem 1=== The side <math>BC</math> of the triangle <math>ABC</math> is extended beyond <math>C</math> to <math>D</math> so that <math>CD = BC</math>. The side...") (current)
• 09:15, 23 December 2022 (diff | hist) . . (+1)‎ . . 2012 EGMO Problems ‎ (→‎Problem 4) (current)
• 09:15, 23 December 2022 (diff | hist) . . (+2)‎ . . 2012 EGMO Problems ‎ (→‎Problem 6)
• 08:45, 23 December 2022 (diff | hist) . . (+1)‎ . . 2012 EGMO Problems ‎ (→‎Problem 8)
• 08:45, 23 December 2022 (diff | hist) . . (-2)‎ . . 2012 EGMO Problems ‎ (→‎Problem 8)
• 08:45, 23 December 2022 (diff | hist) . . (+1)‎ . . 2012 EGMO Problems ‎ (→‎Problem 6)
• 08:44, 23 December 2022 (diff | hist) . . (+1)‎ . . 2012 EGMO Problems ‎ (→‎Problem 3)
• 08:44, 23 December 2022 (diff | hist) . . (+1)‎ . . 2012 EGMO Problems ‎ (→‎Problem 1)

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