# User contributions

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- 15:12, 28 November 2009 (diff | hist) . . (+1) . . m Recursion (→Examples: -- funny whoever did that - finally got noticed)
- 18:25, 10 November 2008 (diff | hist) . . (+12) . . 1993 USAMO Problems/Problem 1 (→Solution)
- 18:24, 10 November 2008 (diff | hist) . . (+59) . . 1993 USAMO Problems/Problem 1 (→Solution)
- 18:06, 16 October 2008
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**(+1,759)** . . 2001 IMO Problems/Problem 4 - 15:33, 4 October 2008 (diff | hist) . . (0) . . m 1973 USAMO Problems/Problem 4 (→Solution)
- 11:42, 4 October 2008
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**(+2,160)** . . N 1994 IMO Problems/Problem 4 (New page: Find all ordered pairs <math>(m,n)</math> where <math>m</math> and <math>n</math> are positive integers such that <math>\frac {n^3 + 1}{mn - 1}</math> is an integer. == Solution == Supp...) - 12:30, 30 September 2008
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**(+4,378)** . . N 1993 IMO Problems/Problem 4 (New page: For three points <math>A,B,C</math> in the plane, we define <math>m(ABC)</math> to be the smallest length of the three heights of the triangle <math>ABC</math>, where in the case <math>A</...) (current) - 15:37, 27 September 2008
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**(+3,543)** . . N 1991 IMO Problems/Problem 4 (New page: Suppose <math>\,G\,</math> is a connected graph with <math>\,k\,</math> edges. Prove that it is possible to label the edges <math>1,2,\ldots ,k\,</math> in such a way that at each vertex w...) - 17:59, 24 September 2008
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**(+2,964)** . . N 1989 IMO Problems/Problem 2 (New page: <math>ABC</math> is a triangle, the bisector of angle <math>A</math> meets the circumcircle of triangle <math>ABC</math> in <math>A_1</math>, points <math>B_1</math> and <math>C_1</math> a...) - 20:06, 11 September 2008
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**(+2,131)** . . 1987 IMO Problems/Problem 2 - 17:54, 9 September 2008
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**(+1,913)** . . N 1986 IMO Problems/Problem 2 (New page: Given a point <math>P_0</math> in the plane of the triangle <math>A_1A_2A_3</math>. Define <math>A_s=A_{s-3}</math> for all <math>s\ge4</math>. Construct a set of points <math>P_1,P_2,P_3,...) - 12:06, 6 September 2008
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**(+804)** . . 1961 IMO Problems/Problem 6 (→Solution) - 19:04, 31 August 2008
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**(+1,722)** . . N 1995 IMO Problems/Problem 1 (New page: Let <math>A,B,C,D</math> be four distinct points on a line, in that order. The circles with diameters <math>AC</math> and <math>BD</math> intersect at <math>X</math> and <math>Y</math>. Th...) - 17:26, 30 August 2008 (diff | hist) . . (+18) . . m 1991 IMO Problems/Problem 1
- 17:26, 30 August 2008
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**(+1,515)** . . N 1991 IMO Problems/Problem 1 (New page: Given a triangle <math>ABC</math> let <math>I</math> be the center of its inscribed circle. The internal bisectors of the angles <math>A,B,C</math> meet the opposite sides in <math>A^\prim...) - 15:28, 30 August 2008
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**(+4,085)** . . N 1989 IMO Problems/Problem 4 (New page: Let <math>ABCD</math> be a convex quadrilateral such that the sides <math>AB,AD,BC</math> satisfy <math>AB=AD+BC</math>. There exists a point <math>P</math> inside the quadrilateral at a d...) - 11:56, 30 August 2008
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**(+2,849)** . . N 1988 IMO Problems/Problem 4 (New page: Show that the solution set of the inequality <math>\sum_{k=1}^{70}\frac{k}{x-k}\ge\frac{5}{4}</math> is a union of disjoint intervals, the sum of whose length is <math>1988</math>. Con...) - 19:49, 26 August 2008
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**(+1,179)** . . 2006 Romanian NMO Problems/Grade 8/Problem 4 (→Solution) (current) - 10:26, 25 August 2008
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**(+1,397)** . . N 1985 IMO Problems/Problem 4 (page/ problem/ solution) - 09:46, 25 August 2008
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**(+2,718)** . . N 1984 IMO Problems/Problem 4 (page/ problem/ solution)

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