English

A 3/2--approximation for big two-bar charts packing

Data Structures and Algorithms 2020-06-19 v1 Discrete Mathematics

Abstract

We consider a Two-Bar Charts Packing Problem (2-BCPP), in which it is necessary to pack two-bar charts (2-BCs) in a unit-height strip of minimum length. The problem is a generalization of the Bin Packing Problem (BPP). Earlier, we proposed an O(n2)O(n^2)-time algorithm that constructs the packing which length at most 2OPT+12\cdot OPT+1, where OPTOPT is the minimum length of the packing of nn 2-BCs. In this paper, we propose an O(n4)O(n^4)-time 3/2-approximate algorithm when each BC has at least one bar greater than 1/2.

Keywords

Cite

@article{arxiv.2006.10361,
  title  = {A 3/2--approximation for big two-bar charts packing},
  author = {Adil Erzin and Stepan Nazarenko and Gregory Melidi and Roman Plotnikov},
  journal= {arXiv preprint arXiv:2006.10361},
  year   = {2020}
}
R2 v1 2026-06-23T16:25:33.976Z