keepTabs (actions: list[str]) -> dict[str, int] that take as input a list of actions (an action log book) and returns a dictionary storing the karma points of all the characters mentioned in actions. People with zero net karma points will be removed from the dictionary before the function returns. Each entry of actions comes in one of the following two forms: • a name (a sequence of English letters without any punctuation marks or spaces) followed by ei- ther++or--, indicating positive karma and negative karma, respectively. For example, "Jack++" or "Kanat--". The names are case-sensitive and may appear in mixed upper- and lower- cases. • a name followed by -> then another name, indicating a transfer of all karma points from the first person to the second. For example, "Abby->Jeff" means Abby gives all her karma points to Jeff. That is, Jeff inherits all karma points of Abby, be it negative or positive. After that, Abby's karma point resets to 0. We guarantee that there will not be extra spaces or any irrelevant punctuation marks anywhere.

keepTabs (actions: list[str]) -> dict[str, int] that take as input a list of actions (an action log book) and returns a dictionary storing the karma points of all the characters mentioned in actions. People with zero net karma points will be removed from the dictionary before the function returns. Each entry of actions comes in one of the following two forms: • a name (a sequence of English letters without any punctuation marks or spaces) followed by ei- ther++or--, indicating positive karma and negative karma, respectively. For example, "Jack++" or "Kanat--". The names are case-sensitive and may appear in mixed upper- and lower- cases. • a name followed by -> then another name, indicating a transfer of all karma points from the first person to the second. For example, "Abby->Jeff" means Abby gives all her karma points to Jeff. That is, Jeff inherits all karma points of Abby, be it negative or positive. After that, Abby's karma point resets to 0. We guarantee that there will not be extra spaces or any irrelevant punctuation marks anywhere.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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