python-programming-questions/3. Data Processing IO at main · 23f2004341/python-programming-questions · GitHub

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---
title: Check if Three-Digit Odd Number
---

# Problem Statement

Given an integer `n`, return `True` if the number is a three-digit odd number, and `False` otherwise.

**Example**
```py3
is_three_digit_odd(123) # True , both three-digit and odd
is_three_digit_odd(22) # False, not three-digit
is_three_digit_odd(120) # False, three-digit but not odd
```

# Solution

```py3
def is_three_digit_odd(n: int) -> bool:
    '''
    Given an integer, check if it is a three-digit odd number.

    Arguments:
    n: int - an integer to check.

    Return: bool - True if it is a three-digit odd number, else False.
    '''
    return 100 <= n <= 999 and n % 2 != 0
```

# Public Test Cases

## Input 1

```
is_equal(
    is_three_digit_odd(135),
    True
)
```

## Output 1

```
True
```

## Input 2

```
is_equal(
    is_three_digit_odd(200),
    False
)
```

## Output 2

```
False
```

## Input 3

```
is_equal(
    is_three_digit_odd(99),
    False
)
```

## Output 3

```
False
```

# Private Test Cases

## Input 1

```
n = 101
is_equal(
    is_three_digit_odd(n),
    True
)
n = 999
is_equal(
    is_three_digit_odd(n),
    True
)
n = 500
is_equal(
    is_three_digit_odd(n),
    False
)
n = 89
is_equal(
    is_three_digit_odd(n),
    False
)
```

## Output 1

```
True
True
False
False
```