BlackRock Interview Questions

What is the Black-Scholes option pricing model?

Design a cache system that stores key-value pairs with a fixed capacity. When the cache reaches its limit, it should evict the least recently used (LRU) entry. Implement methods to get a value by key, set a new key-value pair, and delete a specific key from the cache using a data structure of your choice.

Explain valuation techniques for pricing mortgage and corporate bonds.

Write a program to determine if the current configuration of a Tic Tac Toe board allows the 'X' player to win on their next move. A winning configuration is one where three 'X's appear in a row. Your task is to find if there is a row, column, or diagonal with exactly two 'X's and an empty spot, indicating that 'X' can win by playing in that spot. The program should output the coordinate (x, y) of the winning location.

What is the square of 72?