Corpus ID: 14422753

Refined Upper and Lower Bounds for 2-SUM

  title={Refined Upper and Lower Bounds for 2-SUM},
  author={A. L. Chan and W. Gasarch and C. Kruskal},
We prove upper and lower bounds on the time complexity of solving the 2-SUM problem: given a set of numbers, are there two of them that sum to zero? Our basic models are the linear decision tree and the degree-d algebraic decision tree. Our bounds are more precise than is common for this field and allow us to observe that 2-SUM is strictly harder than sorting in the linear decision tree model. 


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