What will be the value of x when the code is executed successfully x = 0 a = 5 b = 5 if a > 0: if b < 0: X = x + 5 elif a > 5: X = x + 4 else: X = x + 3 else: X = x + 2 print(x)

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
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**Understanding Conditional Statements in Python**

The following Python code demonstrates the use of conditional statements to determine the final value of the variable `x`. 

```python
x = 0
a = 5
b = 5
if a > 0:
    if b < 0:
        x = x + 5
    elif a > 5:
        x = x + 4
    else:
        x = x + 3
else:
    x = x + 2
print(x)
```

### Explanation

- **Initial Values**: 
  - `x` is initialized to `0`.
  - `a` is assigned the value `5`.
  - `b` is assigned the value `5`.

- **Conditional Logic**:
  - The first conditional statement checks if `a > 0`.
    - Since `a` is `5`, which is greater than `0`, the program enters the next block.
  - Within this block, another conditional structure evaluates `b < 0`.
    - Since `b` is `5`, which is not less than `0`, the program skips the corresponding block.
  - The next condition `elif a > 5` is checked.
    - Since `a` is `5`, it is not greater than `5`, skipping this block as well.
  - The `else` condition is executed, adding `3` to `x`.

- **Output**: The code will print `3` because `x` is updated by adding `3` to its initial value.

This demonstrates the nesting of `if`, `elif`, and `else` statements to control the flow of a program depending on multiple conditions. Adjust the values of `a` and `b` to observe different outputs.
Transcribed Image Text:**Understanding Conditional Statements in Python** The following Python code demonstrates the use of conditional statements to determine the final value of the variable `x`. ```python x = 0 a = 5 b = 5 if a > 0: if b < 0: x = x + 5 elif a > 5: x = x + 4 else: x = x + 3 else: x = x + 2 print(x) ``` ### Explanation - **Initial Values**: - `x` is initialized to `0`. - `a` is assigned the value `5`. - `b` is assigned the value `5`. - **Conditional Logic**: - The first conditional statement checks if `a > 0`. - Since `a` is `5`, which is greater than `0`, the program enters the next block. - Within this block, another conditional structure evaluates `b < 0`. - Since `b` is `5`, which is not less than `0`, the program skips the corresponding block. - The next condition `elif a > 5` is checked. - Since `a` is `5`, it is not greater than `5`, skipping this block as well. - The `else` condition is executed, adding `3` to `x`. - **Output**: The code will print `3` because `x` is updated by adding `3` to its initial value. This demonstrates the nesting of `if`, `elif`, and `else` statements to control the flow of a program depending on multiple conditions. Adjust the values of `a` and `b` to observe different outputs.
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