1. Snow Calamity
2. Swimming Pools Delivery
3. Network Software Transfer
4. Counting Lehmer Generators
5. Lexicographically Smallest Word
6. Optimal Chain Cutting

1. Utility Pipes
2. Conveyor Reconfigurations
3. Smugglers vs. Detectives
4. Incomplete Automaton
5. Counting Linear Congruential Generators
6. Non-overlapping Matches

1. Laser Highways System
2. Connection-Safe Minibus Trips
3. Equivalence of Border Networks
4. Words with Given Prefix
5. Matching Pairs
6. Combined Linear Congruential Generators

Directed graphs
Refactoring of a Simplified Makefile
Maximum path
Shortcut edges
Increasing Training Load
Reverse an Edge
Leaking canals inspection
Wayfarers

Euler trail
Winter Maintenance Service

Generation of various combinatorial structures
The Mastermind-- Assistant Program
Counting Spanning Trees
The Puzzle
Isomorphic permutations
Historical Segmented Belts

Graph isomorphism
Small Graphs Isomorphism
Binary Rooted Tree Isomorphism
Similar weighted binary rooted trees
Tree isomorphism
Molecules
Connected Networks

Graph searching
Maximum Augmenting Sequence
Telescopes connection
Marsh Causeway
Road Trip
Word Game

Minimum spanning trees
Minimum Cascading Spanning Tree
Campus
Hedgehog Minimum Spanning Tree
Backup Connection
New advances in gravitational waves observations
Electrification of a rural area

Number theory
Linear congruential generator
Counting linear congruential generators
On Certain Lehmer Generators

Priority queues
Building Binomial Heaps

Properties of finite automata and regular languages
Dictionary automaton
PAL distance
Finite and infinite languages
The Word Counter
The NFA Counter
Identification of minimal DFA
Incomplete Automaton
Words with given prefix
Bud words

Text searching
Basic Committee Work Model
Text Search
Dictionaries
Trains dispatching
Search for a polynomial