Map Structures

Map data structures store key-value pairs and provide efficient lookup, insertion, and deletion operations. They are crucial for solving problems involving frequency counting, lookups, and associations.

Content Coming Soon

This comprehensive guide on map structures will cover:

Topics to be covered:

  • STL map and multimap
  • Unordered map for hash-based lookups
  • Frequency counting and character mapping
  • Custom key types and comparators
  • Map iterators and traversal
  • Performance comparison: map vs unordered_map
  • Common patterns in competitive programming

CodeForces Challenge Problems

Practice map operations:

Easy

Frequency Count

Practice using maps for counting and frequency problems.

Maps Frequency
Solve Problem