## Algorithms UnlockedHave you ever wondered how your GPS can find the fastest way to your destination, selecting one route from seemingly countless possibilities in mere seconds? How your credit card account number is protected when you make a purchase over the Internet? The answer is algorithms. And how do these mathematical formulations translate themselves into your GPS, your laptop, or your smart phone? This book offers an engagingly written guide to the basics of computer algorithms. In |

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### Contents

1 What Are Algorithms and Why Should You Care? | 1 |

2 How to Describe and Evaluate Computer Algorithms | 10 |

3 Algorithms for Sorting and Searching | 25 |

4 A Lower Bound for Sorting and How to Beat It | 60 |

5 Directed Acyclic Graphs | 71 |

6 Shortest Paths | 90 |

7 Algorithms on Strings | 115 |