**Function: count_fred_and_ted**This function processes a list of strings known as `names`. It calculates and returns the number of occurrences of the names "fred" or "ted" within the list.**Example Calls:**1. **Input:** `count_fred_and_ted(["sarah", "bimmy", "fred", "eliza", "ted", "ted"])` - **Output:** `3` - **Explanation:** The names "fred" and "ted" occur a total of three times.2. **Input:** `count_fred_and_ted(["sarah", "bimmy", "bimmy", "bimmy", "bimmy"])` - **Output:** `0` - **Explanation:** Neither "fred" nor "ted" is present in the list.3. **Input:** `count_fred_and_ted(["fred", "ted", "fred", "ted"])` - **Output:** `4` - **Explanation:** The names "fred" and "ted" each appear twice, making a total of four.4. **Input:** `count_fred_and_ted([])` - **Output:** `0` - **Explanation:** The list is empty, so no occurrences of "fred" or "ted" are found.

- We need to highlight the code to count fred or ted in a list of string in python.

2. count_fred_and_ted Given a list of strings called names , count up how many of those names are either "fred" or "ted", and return the count. Sample calls should look like: >>> count_fred_and_ted( ["sarah", "bimmy", "fred", "eliza", "ted", "ted"]) >>> count_fred_and_ted( ["sarah", "bimmy", "bimmy", "bimmy", "bimmy"]) >> count_fred_and_ted(["fred", "ted", "fred", "ted"]) 4 >>> count_fred_and_ted([])

2. count_fred_and_ted Given a list of strings called names , count up how many of those names are either "fred" or "ted", and return the count. Sample calls should look like: >>> count_fred_and_ted( ["sarah", "bimmy", "fred", "eliza", "ted", "ted"]) >>> count_fred_and_ted( ["sarah", "bimmy", "bimmy", "bimmy", "bimmy"]) >> count_fred_and_ted(["fred", "ted", "fred", "ted"]) 4 >>> count_fred_and_ted([])

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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Concept explainers

Map

A map is defined as the name of a higher-order function in most of the programming languages that applies a given function to each element of a functor, such as a list, and returns a list of results in the same order. A map is also called the collection of values based on a key, i.e. a key and value pair. A map has its own set of keys. Duplicate keys are not permitted in the Map, although duplicate values are permitted. Because a Map cannot be navigated, it must be converted to a Set using the keySet() or entrySet() methods. For key-value association mapping, such as dictionaries, maps are ideal.

Question

**Function: count_fred_and_ted**

This function processes a list of strings known as `names`. It calculates and returns the number of occurrences of the names "fred" or "ted" within the list.

**Example Calls:**

1. **Input:** `count_fred_and_ted(["sarah", "bimmy", "fred", "eliza", "ted", "ted"])`
- **Output:** `3`
- **Explanation:** The names "fred" and "ted" occur a total of three times.

2. **Input:** `count_fred_and_ted(["sarah", "bimmy", "bimmy", "bimmy", "bimmy"])`
- **Output:** `0`
- **Explanation:** Neither "fred" nor "ted" is present in the list.

3. **Input:** `count_fred_and_ted(["fred", "ted", "fred", "ted"])`
- **Output:** `4`
- **Explanation:** The names "fred" and "ted" each appear twice, making a total of four.

4. **Input:** `count_fred_and_ted([])`
- **Output:** `0`
- **Explanation:** The list is empty, so no occurrences of "fred" or "ted" are found.

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