User contributions
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- 14:16, 2 March 2024 (diff | hist) . . (+2) . . 2023 USAMO Problems (→Problem 3)
- 08:45, 24 February 2023 (diff | hist) . . (-73) . . 2013 TSTST Problems (current)
- 08:45, 24 February 2023 (diff | hist) . . (+74) . . 2013 TSTST Problems
- 08:44, 24 February 2023 (diff | hist) . . (+15) . . 2013 TSTST Problems
- 08:44, 24 February 2023 (diff | hist) . . (+6) . . 2013 TSTST Problems
- 08:43, 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...")
- 08:50, 23 February 2023 (diff | hist) . . (+33) . . 2019 ELMO Problems (current)
- 08:49, 23 February 2023 (diff | hist) . . (-44) . . 2019 ELMO Problems (→Problem 3)
- 08:49, 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...")
- 08:38, 22 February 2023 (diff | hist) . . (0) . . 2018 TSTST Problems (→Problem 7) (current)
- 08:38, 22 February 2023 (diff | hist) . . (-24) . . 2018 TSTST Problems (→Problem 4)
- 08:37, 22 February 2023 (diff | hist) . . (-1) . . 2018 TSTST Problems (→Problem 7)
- 08:36, 22 February 2023 (diff | hist) . . (+1) . . 2018 TSTST Problems (→Problem 7)
- 08:36, 22 February 2023 (diff | hist) . . (-17) . . 2018 TSTST Problems (→Problem 7)
- 08:35, 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...")
- 14:13, 24 December 2022 (diff | hist) . . (+1) . . 2022 EGMO Problems (→Problem 6) (current)
- 14:12, 24 December 2022 (diff | hist) . . (-50) . . 2014 EGMO Problems (→Problem 5) (current)
- 14:08, 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...")
- 14:07, 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)
- 14:05, 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)
- 14:03, 24 December 2022 (diff | hist) . . (0) . . 2017 EGMO Problems (current)
- 14:02, 24 December 2022 (diff | hist) . . (-9) . . 2018 EGMO Problems (→Problem 6) (current)
- 14:02, 24 December 2022 (diff | hist) . . (-1) . . 2019 EGMO Problems (→Problem 5) (current)
- 14:01, 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>...")
- 13:59, 24 December 2022 (diff | hist) . . (+3) . . 2017 EGMO Problems (→Problem 5)
- 13:58, 24 December 2022 (diff | hist) . . (-6) . . 2018 EGMO Problems (→Problem 3)
- 13:58, 24 December 2022 (diff | hist) . . (-27) . . 2018 EGMO Problems
- 13:56, 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...")
- 13:53, 24 December 2022 (diff | hist) . . (+2) . . 2017 EGMO Problems (→Problem 2)
- 13:53, 24 December 2022 (diff | hist) . . (-25) . . 2017 EGMO Problems (→Problem 2)
- 13:52, 24 December 2022 (diff | hist) . . (-49) . . 2017 EGMO Problems
- 13:51, 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...")
- 13:49, 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)
- 13:47, 24 December 2022 (diff | hist) . . (0) . . 2014 EGMO Problems (→Day 2)
- 13:47, 24 December 2022 (diff | hist) . . (0) . . 2014 EGMO Problems (→Day 1)
- 13:47, 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)
- 13:45, 24 December 2022 (diff | hist) . . (0) . . 2014 EGMO Problems (→Problem 3)
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