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def fcn(n, s) : if n < 1 : print ('done', s) return -4 else : print ('here', s * n) return 5 + fcn(n - 1, s) str = "name" x = 5 print ("finish", fcn(x, str))

def fcn(n, s) : if n < 1 : print ('done', s) return -4 else : print ('here', s * n) return 5 + fcn(n - 1, s) str = "name" x = 5 print ("finish", fcn(x, str))

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Could you help me find a complete trace of this function? 

### Complete Trace of the Function This code snippet defines a recursive function `fcn(n, s)`, which is then called in the main body with specific values. Let's break down the code and its execution: #### Code Explanation: 1. **Function Definition:** - The function `fcn(n, s)` takes two parameters: `n` (an integer) and `s` (a string). - It checks if `n` is less than 1: - If true, it prints `('done', s)` and returns `-4`. - If false, it prints `('here', s * n)` and makes a recursive call with `n-1`. 2. **Main Script:** - A string `str` is initialized with the value `"name"`. - An integer `x` is initialized with the value `5`. - The function `fcn(x, str)` is called, and the result is printed alongside the word `"finish"`. #### Execution Trace: - **Initial Call:** `fcn(5, "name")` - Since `5 >= 1`, it prints `('here', 'namename')`. - Makes a recursive call: `5 + fcn(4, "name")`. - **Recursive Call 1:** `fcn(4, "name")` - Since `4 >= 1`, it prints `('here', 'namename')`. - Makes a recursive call: `5 + fcn(3, "name")`. - **Recursive Call 2:** `fcn(3, "name")` - Since `3 >= 1`, it prints `('here', 'namename')`. - Makes a recursive call: `5 + fcn(2, "name")`. - **Recursive Call 3:** `fcn(2, "name")` - Since `2 >= 1`, it prints `('here', 'namename')`. - Makes a recursive call: `5 + fcn(1, "name")`. - **Recursive Call 4:** `fcn(1, "name")` - Since `1 >= 1`, it prints `('here', 'namename')`. - Makes a recursive call: `5 + fcn(0, "name")`. - **Base Case Call:** `fcn(0
Transcribed Image Text:### Complete Trace of the Function This code snippet defines a recursive function `fcn(n, s)`, which is then called in the main body with specific values. Let's break down the code and its execution: #### Code Explanation: 1. **Function Definition:** - The function `fcn(n, s)` takes two parameters: `n` (an integer) and `s` (a string). - It checks if `n` is less than 1: - If true, it prints `('done', s)` and returns `-4`. - If false, it prints `('here', s * n)` and makes a recursive call with `n-1`. 2. **Main Script:** - A string `str` is initialized with the value `"name"`. - An integer `x` is initialized with the value `5`. - The function `fcn(x, str)` is called, and the result is printed alongside the word `"finish"`. #### Execution Trace: - **Initial Call:** `fcn(5, "name")` - Since `5 >= 1`, it prints `('here', 'namename')`. - Makes a recursive call: `5 + fcn(4, "name")`. - **Recursive Call 1:** `fcn(4, "name")` - Since `4 >= 1`, it prints `('here', 'namename')`. - Makes a recursive call: `5 + fcn(3, "name")`. - **Recursive Call 2:** `fcn(3, "name")` - Since `3 >= 1`, it prints `('here', 'namename')`. - Makes a recursive call: `5 + fcn(2, "name")`. - **Recursive Call 3:** `fcn(2, "name")` - Since `2 >= 1`, it prints `('here', 'namename')`. - Makes a recursive call: `5 + fcn(1, "name")`. - **Recursive Call 4:** `fcn(1, "name")` - Since `1 >= 1`, it prints `('here', 'namename')`. - Makes a recursive call: `5 + fcn(0, "name")`. - **Base Case Call:** `fcn(0
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