Missing Test Case - 1. Two Sum

[Kalash0098]

LeetCode Username

Kalash655

Problem Number, Title, and Link

1. Two sum

Bug Category

Problem description, Incorrect or missing "Related Topics"

Bug Description

When defining a method inside a class, I forgot to include self as the first parameter in the twoSum method. As a result, when the method was called using Solution().twoSum(...), Python raised a TypeError stating that 3 arguments were given but only 2 were expected.

Language Used for Code

Python/Python3

Code used for Submit/Run operation

Expected behavior

Define a class Solution with a method twoSum(nums, target) that:

Takes a list of integers (nums) and a target number (target)

Returns the indices of two numbers in the list that add up to the target

Screenshots

No response

Additional context

No response

[oj-leetcode]

oj-leetcode commented: Hello Kalash655,

Thank you for reaching out to us. It looks like the error you're encountering is related to a common oversight in Python where the 'self' parameter is omitted in the method definition within a class. When you define a method inside a class, it’s essential to include 'self' as the first parameter. This allows Python to pass the instance of the class to the method.

You can refer to resources on Python class definitions or the Python documentation for more insights on correctly structuring your method definitions. Understanding this concept will certainly help in avoiding such issues in the future.

If you have any more questions or need further clarification, feel free to reach out. We're here to help!

Best regards,
LeetCode Support Team