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  • 1
    Beginner

    Basic problems for anyone who has just started to program...

    4618 TOPICS
  • 2
    Ad-Hoc

    Simulation Problems, Dates, Games and general Ad-Hoc...

    1058 TOPICS
  • 3
    Strings

    Palindromes, Frequency, Ad-Hoc, LCS, String Manipulation...

    657 TOPICS
  • 4
    Data Structures and Libraries

    Queue, Stack, Sort, Map, Set...

    562 TOPICS
  • 5
    Mathematics

    Number Theory, Prime Numbers, Combinatorics, BigInteger...

    698 TOPICS
  • 6
    Paradigms

    Dynamic Programming, Binary Search, Greedy, Backtracking ...

    215 TOPICS
  • 7
    Graph

    Flood Fill, MST, SSSP, DAG, Maximum Flow, Tree...

    306 TOPICS
  • 8
    Computational Geometry

    Points and Lines, Polygon...

    98 TOPICS
  • 9
    SQL

    Query Languages: Select, Insert, Update, Create

    174 TOPICS
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