Largest of Three Numbers | Dataford Interview Questions

A utility in a TATA ELXSI software component must select the greatest value from three numeric inputs. Write a function that compares the values and returns the largest number.

The solution should work for positive numbers, negative numbers, zero, and cases where two or all three inputs are equal. Do not sort the values, because only one result is required.

Formal Specification

Implement find_largest(a, b, c):

Input: Three integers a, b, and c.
Output: The integer value that is greater than or equal to the other two values.
The function must not modify any input and should use constant auxiliary space.

Constraints

-10^9 <= a, b, c <= 10^9
Inputs are valid integers.
Equal values are allowed.
Return the largest value, not its index.

Function Signature

def find_largest(a, b, c):

Your question is Largest of Three Numbers. 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