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A good problem( very easy )

Source: Cono sur Olympiad 1996 P5

October 7, 2017
geometrycono surcombinatorics

Problem Statement

We want to cover totally a square(side is equal to kk integer and k>1k>1) with this rectangles: 11 rectangle (1×11\times 1), 22 rectangles (2×12\times 1), 44 rectangles (3×13\times 1),...., 2n2^n rectangles (n+1×1n + 1 \times 1), such that the rectangles can't overlap and don't exceed the limits of square. Find all kk, such that this is possible and for each kk found you have to draw a solution