User contributions
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- 17:20, 27 November 2023 (diff | hist) . . (+440) . . 2013 Canadian MO Problems/Problem 4
- 17:15, 27 November 2023 (diff | hist) . . (+248) . . 2013 Canadian MO Problems/Problem 4
- 17:13, 27 November 2023 (diff | hist) . . (+136) . . 2013 Canadian MO Problems/Problem 4
- 17:12, 27 November 2023 (diff | hist) . . (+268) . . 2013 Canadian MO Problems/Problem 4
- 17:06, 27 November 2023 (diff | hist) . . (0) . . 2013 Canadian MO Problems/Problem 4
- 17:06, 27 November 2023 (diff | hist) . . (+224) . . 2013 Canadian MO Problems/Problem 4
- 17:02, 27 November 2023 (diff | hist) . . (+218) . . 2013 Canadian MO Problems/Problem 4
- 17:00, 27 November 2023 (diff | hist) . . (+169) . . 2013 Canadian MO Problems/Problem 4
- 16:57, 27 November 2023 (diff | hist) . . (+8) . . 2013 Canadian MO Problems/Problem 4
- 16:56, 27 November 2023 (diff | hist) . . (+243) . . 2013 Canadian MO Problems/Problem 4
- 16:51, 27 November 2023 (diff | hist) . . (+14) . . 2013 Canadian MO Problems/Problem 4
- 16:50, 27 November 2023 (diff | hist) . . (0) . . 2013 Canadian MO Problems/Problem 4
- 16:50, 27 November 2023 (diff | hist) . . (+163) . . 2013 Canadian MO Problems/Problem 4
- 16:48, 27 November 2023 (diff | hist) . . (+42) . . 2013 Canadian MO Problems/Problem 4
- 16:48, 27 November 2023 (diff | hist) . . (+77) . . 2013 Canadian MO Problems/Problem 4
- 16:46, 27 November 2023 (diff | hist) . . (+109) . . 2013 Canadian MO Problems/Problem 4
- 16:45, 27 November 2023 (diff | hist) . . (0) . . 2013 Canadian MO Problems/Problem 4
- 16:45, 27 November 2023 (diff | hist) . . (+3) . . 2013 Canadian MO Problems/Problem 4
- 16:44, 27 November 2023 (diff | hist) . . (+2) . . 2013 Canadian MO Problems/Problem 4
- 16:44, 27 November 2023 (diff | hist) . . (+12) . . 2013 Canadian MO Problems/Problem 4
- 16:44, 27 November 2023 (diff | hist) . . (+200) . . 2013 Canadian MO Problems/Problem 4
- 16:40, 27 November 2023 (diff | hist) . . (+12) . . 2013 Canadian MO Problems/Problem 4
- 16:39, 27 November 2023 (diff | hist) . . (+35) . . 2013 Canadian MO Problems/Problem 4
- 16:34, 27 November 2023 (diff | hist) . . (+1) . . 2013 Canadian MO Problems/Problem 4
- 16:32, 27 November 2023 (diff | hist) . . (+12) . . 2013 Canadian MO Problems/Problem 4
- 16:32, 27 November 2023 (diff | hist) . . (+295) . . 2013 Canadian MO Problems/Problem 4
- 16:29, 27 November 2023 (diff | hist) . . (-30) . . 2013 Canadian MO Problems/Problem 4
- 16:29, 27 November 2023 (diff | hist) . . (+135) . . 2013 Canadian MO Problems/Problem 4
- 02:36, 27 November 2023 (diff | hist) . . (-96) . . 2013 Canadian MO Problems/Problem 1 (current)
- 02:10, 27 November 2023 (diff | hist) . . (+65) . . 2013 Canadian MO Problems/Problem 1
- 02:00, 27 November 2023 (diff | hist) . . (+31) . . 2013 Canadian MO Problems/Problem 1
- 01:57, 27 November 2023 (diff | hist) . . (+84) . . 2013 Canadian MO Problems/Problem 1
- 01:54, 27 November 2023 (diff | hist) . . (+13) . . 2013 Canadian MO Problems/Problem 1
- 01:54, 27 November 2023 (diff | hist) . . (+822) . . 2013 Canadian MO Problems/Problem 1
- 00:19, 27 November 2023 (diff | hist) . . (+468) . . N 2013 Canadian MO Problems/Problem 5 (Created page with "==Problem == Let <math>O</math> denote the circumcentre of an acute-angled triangle <math>ABC</math>. Let point <math>P</math> on side <math>AB</math> be such that <math>\angl...") (current)
- 00:18, 27 November 2023 (diff | hist) . . (+573) . . N 2013 Canadian MO Problems/Problem 4 (Created page with "==Problem == Let <math>n</math> be a positive integer. For any positive integer <math>j</math> and positive real number <math>r</math>, define <cmath> f_j(r) =\min (jr, n)+\m...")
- 00:18, 27 November 2023 (diff | hist) . . (+493) . . N 2013 Canadian MO Problems/Problem 3 (Created page with "==Problem == Let <math>G</math> be the centroid of a right-angled triangle <math>ABC</math> with <math>\angle BCA = 90^\circ</math>. Let <math>P</math> be the point on ray <ma...") (current)
- 00:18, 27 November 2023 (diff | hist) . . (+390) . . N 2013 Canadian MO Problems/Problem 2 (Created page with "==Problem == The sequence <math>a_1, a_2, \dots, a_n</math> consists of the numbers <math>1, 2, \dots, n</math> in some order. For which positive integers <math>n</math> is it...") (current)
- 00:16, 27 November 2023 (diff | hist) . . (+5) . . 2013 Canadian MO Problems/Problem 1
- 00:14, 27 November 2023 (diff | hist) . . (+2) . . 2013 Canadian MO Problems/Problem 1
- 00:14, 27 November 2023 (diff | hist) . . (+287) . . 2013 Canadian MO Problems/Problem 1
- 00:11, 27 November 2023 (diff | hist) . . (+192) . . 2013 Canadian MO Problems/Problem 1
- 00:09, 27 November 2023 (diff | hist) . . (+311) . . 2013 Canadian MO Problems/Problem 1
- 00:02, 27 November 2023 (diff | hist) . . (0) . . 2013 Canadian MO Problems/Problem 1
- 00:01, 27 November 2023 (diff | hist) . . (+165) . . 2013 Canadian MO Problems/Problem 1
- 23:58, 26 November 2023 (diff | hist) . . (+120) . . 2013 Canadian MO Problems/Problem 1
- 23:57, 26 November 2023 (diff | hist) . . (+515) . . 2013 Canadian MO Problems/Problem 1
- 23:52, 26 November 2023 (diff | hist) . . (+61) . . 2013 Canadian MO Problems/Problem 1
- 23:51, 26 November 2023 (diff | hist) . . (+116) . . 2013 Canadian MO Problems/Problem 1
- 23:49, 26 November 2023 (diff | hist) . . (+236) . . 2013 Canadian MO Problems/Problem 1
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