Quantum Hashing and Fingerprinting for Quantum Cryptography and Computations -- Parameterized Analysis of Art Gallery and Terrain Guarding -- Central Positions in Social Networks -- Second-Order Finite Automata -- Isomorphic Distances Among Elections -- Tandem Duplications, Segmental Duplications and Deletions, and their Applications -- Faster 2-Disjoint-Shortest-Path Algorithm -- An Improvement to Chvátal and Thomassen's Upper Bound for Oriented Diameter -- The Normalized Algorithmic Information Distance Cannot be Approximated -- Definable Subsets of Polynomial-Time Algebraic Structures -- Families of Monotonic Trees: Combinatorial Enumeration and Asymptotics -- Nested Regular Expressions can be Compiled to Small Deterministic Nested Word Automata -- On Embeddability of Unit Disk Graphs onto Straight Lines.-On the Decision Tree Complexity of Threshold Functions -- Randomized and Symmetric Catalytic Computation -- On the Parameterized Complexity of the Expected Coverage Problem -- Computational Hardness of Multidimensional Subtraction Games -- Parameterized Complexity of Fair Feedback Vertex Set Problem -- The Power of Leibniz-like Functions as Oracles -- Optimal Skeleton Huffman Trees Revisited -- The Subtrace Order and Counting First-Order Logic -- Speedable left-c.e. Numbers -- The Complexity of Controlling Condorcet, Fallback, and k-Veto Elections by Replacing Candidates or Voters -- On the Transformation of LL(k)-linear Grammars to LL(1)-linear -- On Computing the Hamiltonian Index of Graphs -- A Lower Bound for the Query Phase of Contraction Hierarchies and Hub Labels -- Kernelization of Arc Disjoint Cycle Packing in $\alpha$-bounded Digraphs -- On Subquadratic Derivational Complexity of Semi-Thue Systems -- The Untold Story of SBP -- Weighted Rooted Trees: Fat or Tall -- Groupoid Action and Rearrangement Problem of Bicolor Arrays by Prefix Reversals.