GOLDMAN SACHS Interview Experience (Jun- July 2025)

I had applied on 14/06/2025. I got OA link on 25th June 2025. It had 2 questions of easy-med level.

1. Persons A and Buses an encryption based system for their conversation. Each conversation message is encoded from the source and decoded in the destination using a shared private positive number key known to each other

2)Given a number 'x', and a range of 'y' , please find the count of all the numbers in' in that range, such that the product of the number 'n' and 'x' does not contain any digit from the number 'n'. General Constraints: All the inputs will be integers and below 10$ E.g., if x = 2, y = 10 and z = 15, then, 2 × 10 = 20 // Invalid, since the product contains 0 from 10. 2 x 11 = 22 // Valid

I was able to answer these.

Round 2: coderpad. 18/07/2025 This round has 1 easy question and 1 med level question.

1. Power question: https://leetcode.com/problems/powx-n/description/?envType=problem-list-v2&envId=n86csxy2

2. Recurring decimal: https://leetcode.com/problems/fraction-to-recurring-decimal/description/?envType=problem-list-v2&envId=n86csxy2

Unfortunately I made some mistake for 2nd question and after few days application got turned down.