Packing squares into a rectangle with a relatively small area

On packing squares into a rectangle

We prove that every set of squares with total area 1 can be packed into a rectangle of area at most 2867/2048 = 1.399. . . . This improves on the previous best bound of 1.53. Also, our proof yields a linear time algorithm for finding such a packing.

Packing Unit Squares in a Rectangle

For a positive integer N , let s(N) be the side length of the minimum square into which N unit squares can be packed. This paper shows that, for given real numbers a, b ≥ 2, no more than ab− (a + 1− dae)− (b + 1− dbe) unit squares can be packed in any a′ × b′ rectangle R with a′ < a and b′ < b. From this, we can deduce that, for any integer N ≥ 4, s(N) ≥ min{d√Ne, √ N − 2b√Nc + 1 + 1}. In parti...

Packing equal squares into a large square

Let s(x) denote the maximum number of non-overlapping unit squares which can be packed into a large square of side length x. Let W (x) = x − s(x) denote the “wasted” area, i.e., the area not covered by the unit squares. In this note we prove that W (x) = O ( x √ 2)/7 log x ) . This improves earlier results of Erdős-Graham and Montgomery in which the upper bounds of W (x) = O(x) and W (x) = O(x(...

Partitioning a rectangle into small perimeter rectangles

Alon, N. and D.J. Kleitman, Partitioning a rectangle into small perimeter rectangles, Discrete Mathematics 103 (1992) 111-119. We show that the way to partition a unit square into kZ + s rectangles, for s = 1 or s = -1, so as to minimize the largest perimeter of the rectangles, is to have k 1 rows of k identical rectangles and one row of k + s identical rectangles, with all rectangles having th...

Translative Packing of Unit Squares into Squares