ZIO · Syllabus
ZIO Syllabus 2026 — every subject & topic
The complete Zonal Informatics Olympiad syllabus: 3 subjects, 26 topics. Every topic links to free study notes, practice questions and topic-wise quizzes.
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Syllabus feels overwhelming?
🎓 This whole syllabus, split into daily doses — free. Rebuilt every morning around what you actually did — miss a day, nothing is lost.Build my plan →Algorithmic Problem Solving
- Introduction to Algorithms
- Measuring Algorithm Efficiency
- Searching
- Sorting
- Recursion
- Dynamic Programming Intuition
- Greedy Algorithms
- Basic Graph Concepts
- Graph Traversal
- Shortest Paths
- Trees
- Basic Data Structures
- Simulation
- Invariants and Monovariants
- Case Analysis
Combinatorics and Discrete Mathematics
- Counting Principles
- Pigeonhole Principle
- Parity and Modular Reasoning
- Elementary Number Theory
- Combinatorial Games
- Sets and Logic
Ad-Hoc Problem Patterns
- Constructive Problems
- Optimisation Puzzles
- Scheduling and Ordering
- Grid and Geometry Puzzles
- Three Concrete Inputs Format
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