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TOP Coding Patterns to ACE Coding Interview Questions 🔥

Remember, consistent practice and understanding these patterns can significantly boost your confidence and performance in interviews.

🏗 Data Structures:

  • 1️⃣ Array / Matrix - Arrays are collections of elements stored at contiguous memory locations. Matrices are two-dimensional arrays.
  • 2️⃣ String - Strings are sequences of characters, used to represent text.
  • 3️⃣ Hash Table - Hash tables store key-value pairs, enabling fast retrieval.
  • 4️⃣ Tree - Trees are hierarchical data structures with nodes connected by edges.
  • 5️⃣ Stack / Queue - Stacks follow LIFO (Last In First Out) and queues follow FIFO (First In First Out). 
  • 6️⃣ Heap (Priority Queue) - Heaps are specialized tree-based structures that satisfy the heap property. 
  • 7️⃣ Linked List - Linked lists are linear data structures where elements are stored in nodes, each pointing to the next. 
  • 8️⃣ Graph - Graphs consist of nodes connected by edges, representing relationships between entities. 
  • 9️⃣ Trie - Tries are tree-like structures used for storing strings, providing efficient search and retrieval. 
  • 🔟 Segment Tree - Segment trees are advanced data structures used for answering range queries.

 🎾 Algorithms:

  • 1️⃣ Sliding Window - A technique for solving problems involving arrays/lists by maintaining a subset of elements.
  • 2️⃣ Two Pointers - A method involving two pointers to solve problems on arrays/lists efficiently.
  • 3️⃣ Dynamic Programming (DP) - A method for solving problems by breaking them down into simpler subproblems.
  • 4️⃣ Greedy - Algorithms that make the optimal choice at each step to find the overall optimal solution.
  • 5️⃣ Backtracking - A technique for solving problems incrementally, building candidates and abandoning them if they fail.
  • 6️⃣ Recursion - A method where a function calls itself to solve smaller instances of the same problem.
  • 7️⃣ Memoization - Storing results of expensive function calls and reusing them when the same inputs occur again.
  • 8️⃣ Bit Manipulation - Algorithms involving direct operations on bits for optimization.
  • 9️⃣ Prefix Sum - An array manipulation technique for answering range sum queries efficiently.
  • 🔟 Depth-first Search (DFS) / Breadth-first Search (BFS) - Traversal methods for exploring nodes and edges in a graph.

🎫 Study Plans:

📑 Online Interview Practice:

"Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful." – © Albert Schweitzer

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