Which algorithms should I use?

Personal note of programming algorithms and data structures.

• Two pointers

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  Left and right pointers, sliding window and fast-slow pointers.

  Problem characteristics

• Recursion

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  Recursion, backtracking and divide-and-conquer.

  Problem characteristics

• Dynamic programming

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  Dynamic programming, memoization and tabulation.

  Problem characteristics

• Greedy

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  The greedy algorithm.

  Problem characteristics