Silver
The topics below are not exhaustive for this division.
Contest problems may contain topics not covered in the guide, or topics listed under different divisions!
Modules Progress
Problems Progress
Prefix Sums
Sorting & Searching
Custom Comparators and Coordinate Compression
Somewhat Frequent
Using a custom comparator to sort custom objects or values in a non-default order, and compressing values from a large range to a smaller one.
Updated: 5 days ago
Two Pointers
Not Frequent
Iterating two monotonic pointers across an array to search for a pair of indices satisfying some condition in linear time.
More Operations on Sorted Sets
Not Frequent
Finding the next element smaller or larger than a specified key in a set, and using iterators with sets.
Updated: Last week
(Optional) C++ Sets with Custom Comparators
Rare
Incorporating custom comparators into standard library containers.
Greedy Algorithms with Sorting
Somewhat Frequent
Solving greedy problems by sorting the input.
Binary Search
Somewhat Frequent
Binary searching on arbitrary monotonic functions and built-in functions for binary search.
Graphs
Most Silver to Platinum contests have at least one graph problem.
Graph Traversal
Very Frequent
Traversing a graph with depth first search and breadth first search.
Updated: 4 minutes ago
Flood Fill
Somewhat Frequent
Finding connected components in a graph represented by a grid.
Introduction to Tree Algorithms
Not Frequent
Introducing a special type of graph: trees.
Introduction to Functional Graphs
Not Frequent
Directed graphs in which every vertex has exactly one outgoing edge.
Updated: Last month
Additional Topics
Conclusion
Congratulations on making it this far!