Second Largest Number | Dataford Interview Questions

Find the second largest number in an array.

Given a list of integers nums, return the second largest distinct value. Return None when fewer than two distinct values exist. Implement the solution using one pass through the array with constant extra space.

Function signature: def second_largest(nums):. The input is a non-empty list of integers, and the output is an integer or None.

Constraints

1 <= nums.length <= 1000
-10^9 <= nums[i] <= 10^9
The input contains integers
Return the second largest distinct value
Return None when fewer than two distinct values exist

Function Signature

def second_largest(nums):

Your question is Second Largest Number. 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

Find the second largest number in an array.

Function signature: def second_largest(nums):. The input is a non-empty list of integers, and the output is an integer or None.

Constraints

1 <= nums.length <= 1000
-10^9 <= nums[i] <= 10^9
The input contains integers
Return the second largest distinct value
Return None when fewer than two distinct values exist

Function Signature

def second_largest(nums):

Your question is Second Largest Number. 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.