leetcode-flashcards

📦 a set of flashcards for most common leetcode questions asked in interviews

Flashcards

All flashcards grouped by topic can be found on: https://lc.ashish.me. If you think the flashcards could be improved - please feel free to raise a pull request.

Leetcode questions list

• Array
• Backtracking
• Binary Search
• Bit Manipulation
• Dynamic Programming
• Graph
• Greedy
• Heap
• Interval
• Linked list
• Matrix
• Sliding Window
• String
• Tree
• Trie
• Two pointers

Patterns

• Sliding Window
  • input - linked list, array, string
  • questions type - longest/shortest substring, subarray
• Dynamic Programming
  • questions type - maximum/minimum subarray/array/subset
• Two Pointers
  • input - sorted array or linked list
  • questions type - find pair, tripler or subarray
• Fast and slow pointers
  • input - linked list or array
  • questions type - length of linked list, position of element
• Merge Intervals
  • questions type - overlapping intervals, mutually exclusive intervals, maximum cpu load
• Cyclic sort
  • input - sorted array
  • questions type - missing/duplicate/smallest number in sorted array
• Inplace reversal of linked list
  • questions type - reverse linked list without extra memory, reverse sublist, reverse every k-element sub-list
• BFS
  • questions type - traverse tree level by level, zig zag traversal
• DFS
  • questions type - traverse inorder, preorder, postorder or searching node closer to leaf
• Two heaps
  • questions type - smallest/largest elements of set, scheduling, priority queue
• Backtracking
  • questions type - permutations

References

• Leetcode patterns

Support

If you find this project useful, you can buy me a cup of coffee

Licence

leetcode-flashcards is open source and released under the MIT Licence.

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