Support Multiline Questions #125

Description

Adding to #82, it would be helpful to be able to add multiline questions for code interview style questions like in the example below (from NeetCode):

Example

Given an integer array nums, return true if any value appears more than once in the array, otherwise return false.

Example 1:

Input: nums = [1, 2, 3, 3]

Output: true

Example 2:

Input: nums = [1, 2, 3, 4]

Output: false

Constraints:

• 0 <= nums.length <= 10^5
• -10^9 <= nums[i] <= 10^9