Revision history of "1987 USAMO Problems/Problem 5"

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  • (cur | prev) 17:44, 18 July 20161=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...")