## Apple Interview Questions

### Reverse integer | InterviewBit | LeetCode | Solution Explained

I explain the "expected" solution to Reverse integer in CPP using only ints, present on both InterviewBit...

### Valid Parentheses | LeetCode | Solution Explained

LeetCode 20. Valid Parentheses. I explain a stack based solution in detail.

### Product of Array Except Self | LeetCode | Solution Explained

LeetCode 238. Product of Array Except Self. I explain the intuitions and observations and explain the solution in...

### Daily Temperatures | LeetCode | Stack Solution Explained

ily Temperatures LeetCode becomes easier to solve with the knowledge of Next Greatest Element (NGE). I explain...

### Multiply Strings | LeetCode | Observation Based Approach, Explained

LeetCode 43. Multiply Strings. I explain the Observation Based Approach using simple maths in detail along with the...

### Single Number | LeetCode | Bit Manipulation Solution Explained

LeetCode 136. Single Number can be solved using the idea of bits. But how to even think about...

### Unique Paths III | Backtracking Solution Explained

LeetCode 980. Unique Paths III. We are going to look at the backtracking approach in detail using visuals...

### 3Sum | LeetCode | Solution Explained

LeetCode 15. 3Sum is a very popular interview question. I explain the brute-force solution, binary search optimization and...

### Insert Delete GetRandom O(1) | Solution Explained

LeetCode 380. Insert Delete GetRandom O(1) is an implementation based question, requiring us to know the time complexities...