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... Heap data structure basics ✓ Heap operations and interview concepts Understanding memory behavior and data structures is ...

In this video, we solve LeetCode 1748 – Sum of Unique Elements using a clean and efficient HashMap / frequency-count ...

In this video, we solve LeetCode 3516 – Find Closest Person using a clean and efficient approach in Java. This problem is a great ...

In this video, we solve LeetCode 680 – Valid Palindrome II using an efficient Two Pointer approach in Java. This problem is an ...

In this video, we solve LeetCode 744 – Find Smallest Letter Greater Than Target using an efficient and interview-ready approach ...

In this video, we solve LeetCode 1518 – Water Bottles using a simple and efficient approach in Java. This problem is a great ...

... representation of Data Structures (e.g., showing a list of fruits), Scope Variables, and Memory/Pointers with specific addresses.

In this video, we solve LeetCode 263 – Ugly Number using a simple and efficient approach in Java. This problem helps you ...

In this video, we solve LeetCode 1317 – Convert Integer to the Sum of Two No-Zero Integers using a clean and efficient approach ...

In this video, we solve LeetCode 231 – Power of Two using an efficient and interview-ready approach in Java. This problem is a ...

In this video, we solve LeetCode 633 – Sum of Square Numbers using an efficient and interview-ready approach in Java.

In this video, we solve LeetCode 11 – Container With Most Water using an efficient and interview-ready Two Pointer approach in ...

In this video, we solve LeetCode 3010 – Divide an Array Into Subarrays With Minimum Cost I using a simple and optimal ...

In this video, we solve LeetCode 258 – Add Digits using a simple while loop approach in Java. This problem is a great ...

In this video, we solve LeetCode 168 – Excel Sheet Column Title using a clean and interview-ready approach in Java.

In this video, we solve LeetCode 3100 – Water Bottles II using a clear and optimized approach in Java. This problem builds on the ...