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1987 USAMO Problems/Problem 5: Revision history

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18 July 2016

  • curprev 17:4417:44, 18 July 2016 1=2 talk contribs 662 bytes +662 Created page with "== Problem == <math>a_1, a_2, \cdots, a_n</math> is a sequence of 0's and 1's. T is the number of triples <math>(a_i, a_j, a_k)</math> with <math>i<j<k</math> which are not eq..."
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