Format an Integer with Thousands Separators
Company: Hudson
Role: Software Engineer
Category: Coding & Algorithms
Difficulty: medium
Interview Round: Technical Screen
# Format an Integer with Thousands Separators
Implement `format_with_commas(value: int) -> str`.
Return the base-10 representation of `value` with a comma inserted between every group of three digits counted from the right. A negative value keeps exactly one leading minus sign. Do not add leading zeros, and return `"0"` for zero.
## Valid Input Domain
- `value` is a signed 64-bit integer.
## Constraints
- `-9,223,372,036,854,775,808 <= value <= 9,223,372,036,854,775,807`
- The implementation must handle the minimum signed 64-bit value without overflowing while taking an absolute value.
## Public Examples
### Example 1
Input: `1234`
Output: `"1,234"`
### Example 2
Input: `-9876543`
Output: `"-9,876,543"`
```hint Work from the right edge
The sign is separate from the repeated three-digit grouping rule.
```
Overview: Format a signed integer with a separator every three digits, including correct handling of negative values.