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Coding Interview Preparation

Coding Interview Preparation

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Job Interview Cheat Sheet
Job Interview Cheat Sheet

MCPs ARE USEFUL IN BUILDING AI AGENTS.
MCPs ARE USEFUL IN BUILDING AI AGENTS.

35 OOPS Interview Questions
35 OOPS Interview Questions

AI USE CASES
AI USE CASES

API Architecture
API Architecture

Time Complexity of Sorting Algorithms
Time Complexity of Sorting Algorithms

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Javascript Variables
Javascript Variables

Remove Background with Python
Remove Background with Python

WHY USE STREAMLIT
WHY USE STREAMLIT

Tkinter
Tkinter

Let’s analyze the Python code snippet from the image: python Copy Edit def add_n(a, b): return (a + b) a = 5 b = 5 print(add_
Let’s analyze the Python code snippet from the image:
python
Copy
Edit
def add_n(a, b):
    return (a + b)

a = 5
b = 5

print(add_n(4, 3))
Step-by-step explanation:
A function add_n(a, b) is defined to return the sum of a and b.

The variables a = 5 and b = 5 are declared but not used inside the function call — they are irrelevant in this context.

The function is called with explicit arguments: add_n(4, 3), so:

python
Copy
Edit
return 4 + 3  # = 7
✅ Correct answer: C. 7

a = "10" → Variable a is assigned the string "10". b = a → Variable b also holds the string "10" (but it's not used afterward
a = "10" → Variable a is assigned the string "10".

b = a → Variable b also holds the string "10" (but it's not used afterward).

a = a * 2 → Since a is a string, multiplying it by an integer results in string repetition.

"10" * 2 results in "1010"

print(a) → prints the new value of a, which is "1010".
✅ Correct answer: D. 1010

Let's analyze the Python code step by step: python a = "Sun" b = "Moon" c = a a = b b = c print(a + " and " + b) Step-by-step
Let's analyze the Python code step by step:
python a = "Sun" b = "Moon" c = a a = b b = c print(a + " and " + b) Step-by-step breakdown: 1. `a = "Sun"` → variable `a` now holds `"Sun"`. 2. `b = "Moon"` → variable `b` now holds `"Moon"`. 3. `c = a` → variable `c` is assigned the value of `a`, which is `"Sun"`. 4. `a = b` → variable `a` is now assigned the value of `b`, which is `"Moon"`. 5. `b = c` → variable `b` is now assigned the value of `c`, which is `"Sun"`. Final values: -a = "Moon" -b = "Sun"` So, the `print(a + " and " + b)` will output:
Moon and Sun ✅ Correct answer: A. Moon and Sun

What do you think?
What do you think?

MACHINE LEARNING
MACHINE LEARNING

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NUMPY CHEATSHEET
NUMPY CHEATSHEET

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INTERVIEW CHEATSHEET
INTERVIEW CHEATSHEET