Writing Duplicate Check Function | Dataford Interview Questions

Write a simple function to check for duplicates in an array.

Implement contains_duplicate(nums) to return True if any value appears more than once, and False otherwise. The input is a list of integers, and an empty list should return False.

Function Signature

def contains_duplicate(nums):

Constraints

0 <= nums.length <= 10^4
-10^9 <= nums[i] <= 10^9
Return True if any value occurs at least twice; otherwise return False

Function Signature

def contains_duplicate(nums):

Your question is Writing Duplicate Check Function. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.

Problem

Write a simple function to check for duplicates in an array.

Implement contains_duplicate(nums) to return True if any value appears more than once, and False otherwise. The input is a list of integers, and an empty list should return False.

Function Signature

def contains_duplicate(nums):

Constraints

0 <= nums.length <= 10^4
-10^9 <= nums[i] <= 10^9
Return True if any value occurs at least twice; otherwise return False

Function Signature

def contains_duplicate(nums):

Your question is Writing Duplicate Check Function. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.