Data Structures and Algorithm Analysis Edition 3.2 (C++ Version)2.6.1 Direct Proof 39 2.6.2 Proof by Contradicti 39 2.6.3 Proof by Mathematical Induction 2. 7 Estimation 46 2.8 Further readins 47 2.9 Exercises 3 Algorithm analysis 55 3.1 Introducti