| Problem | Link | Category | Difficulty |
| 10800 - Not That Kind of Graph | 10800 | Ad Hoc | 2 |
| 10801 - Lift Hopping | 10801 | Graph Theory, Shortest Path | 3 |
| 10802 - Lex Smallest Drive | 10802 | Graph Theory, Depth-First Search | |
| 10803 - Thunder Mountain | 10803 | Graph Theory, Shortest Path | 3 |
| 10804 - Gopher Strategy | 10804 | Graph Theory, Bipartite Matching, Binary Search | 4 |
| 10805 - Cockroach Escape Networks | 10805 | Graph Theory | |
| 10806 - Dijkstra, Dijkstra. | 10806 | Graph Theory, Shortest Path | |
| 10807 - Prim, Prim. | 10807 | Graph Theory, Exhaustive Search | |
| 10808 - Rational Resistors | 10808 | Graph Theory |
| 10809 - Great Circle | 10809 | Computational Geometry, Binary Search | |
| 10810 - Ultra-QuickSort | 10810 | Divide and Conquer, Sorting | |
| 10811 - Up the Ante | 10811 | Probability Theory, Dynamic Programming | |
| 10812 - Beat the Spread! | 10812 | Math | |
| 10813 - Traditional BINGO | 10813 | Simulation | |
| 10814 - Simplifying Fractions | 10814 | Math, BigNum | |
| 10815 - Andy's First Dictionary | 10815 | Set Theory | |
| 10816 - Travel in Desert | 10816 | Graph Theory, Shortest Path | |
| 10817 - Headmaster's Headache | 10817 | Dynamic Programming | |
| 10818 - Dora Trip | 10818 | Graph Theory, Traveling Salesperson Problem | |
| 10819 - Trouble of 13-Dots | 10819 | Dynamic Programming | |
| 10820 - Send a Table | 10820 | Number Theory | |
| 10821 - Constructing BST | 10821 | Greedy | |
| 10822 - Planet of the Rock, Paper and Scissors | 10822 | Graph Theory | |
| 10823 - Of Circles and Squares | 10823 | Geometry | |
| 10824 - Regular Polygon | 10824 | Computational Geometry | |
| 10825 - Anagram and Multiplication | 10825 | Math | |
| 10826 - Hot or Cold? | 10826 | Dynamic Programming | |
| 10827 - Maximum sum on a torus | 10827 | Dynamic Programming | |
| 10828 - Back to Kernighan-Ritchie | 10828 | Graph Theory | |
| 10829 - L-Gap Substrings | 10829 | | |
| 10830 - A New Function | 10830 | Number Theory | |
| 10831 - Gerg's Cake | 10831 | Number Theory | |
| 10832 - Yoyodyne | 10832 | Simulation | |
| 10833 - Lunar Forest | 10833 | Exhaustive Search | |
| 10834 - The Story of Two Coins | 10834 | Geometry | |
| 10835 - Playing with Coins | 10835 | Dynamic Programming | |
| 10836 - The Maximum Term | 10836 | | |
| 10837 - A Research Problem | 10837 | Number Theory | |
| 10838 - The Pawn Chess | 10838 | Game Theory | |
| 10839 - The Curse of Barbosa | 10839 | Dynamic Programming, Combinatorics | |
| 10840 - Multi-stage Compressor | 10840 | | |
| 10841 - Lift Hopping in the Real World | 10841 | Graph Theory | |
| 10842 - Traffic Flow | 10842 | Graph Theory, Minimum Spanning Tree | |
| 10843 - Anne's game | 10843 | Graph Theory | |
| 10844 - Bloques | 10844 | Combinatorics | |
| 10845 - The crusades | 10845 | Graph Theory | |
| 10846 - Reading time from a clock | 10846 | Math | |
| 10847 - Basic Tautologies | 10847 | Math | |
| 10848 - Make Palindrome Checker | 10848 | Ad Hoc | |
| 10849 - Move the bishop | 10849 | Chess | |
| 10850 - The Gossipy Gossipers Gossip Gossips | 10850 | Graph Theory | |
| 10851 - 2D Hieroglyphs decoder | 10851 | Ad Hoc | |
| 10852 - Less Prime | 10852 | Number Theory | |
| 10853 - Pablito nailed a nail | 10853 | Game Theory | |
| 10854 - Number of Paths | 10854 | Combinatorics | |
| 10855 - Rotated squares | 10855 | Ad-hoc | |
| 10856 - Recover Factorial | 10856 | Number Theory, Primes | |
| 10857 - Easter Eggs | 10857 | | |
| 10858 - Unique Factorization | 10858 | Number Theory | |
| 10859 - Placing Lampposts | 10859 | Graph Theory | |
| 10860 - Many a Little makes a Mickle | 10860 | Dynamic Programming | |
| 10861 - Security by Ambiguity | 10861 | Combinatorics | |
| 10862 - Connect the Cable Wires | 10862 | Combinatorics, Dynamic Programming | |
| 10863 - Shovelling Snow | 10863 | Graph Theory | |
| 10864 - The Predator | 10864 | Computational Geometry | |
| 10865 - Brownie Points | 10865 | Computational Geometry | |
| 10866 - Magic Bitstrings | 10866 | Number Theory, Ad Hoc | |
| 10867 - Cutting a Polygon | 10867 | Computational Geometry | |
| 10868 - Bungee Jumping | 10868 | Simulation, Math | |
| 10869 - Brownie Points II | 10869 | Data Structures, Computational Geometry | |
| 10870 - Recurrences | 10870 | | |
| 10871 - Anti-Primes | 10871 | Number Theory | |
| 10872 - Triangles | 10872 | Math | |
| 10873 - Splat, Inc. | 10873 | Simulation | |
| 10874 - Segments | 10874 | Dynamic Programming | |
| 10875 - Big Math | 10875 | Ad Hoc | |
| 10876 - Factory Robot | 10876 | | |
| 10877 - Decoids | 10877 | Sorting | |
| 10878 - Decode the tape | 10878 | Ad Hoc | |
| 10879 - Code Refactoring | 10879 | Number Theory | |
| 10880 - Colin and Ryan | 10880 | Number Theory | |
| 10881 - Piotr's Ants | 10881 | Sorting, Simulation | |
| 10882 - Koerner's Pub | 10882 | Set Theory | |
| 10883 - Supermean | 10883 | Combinatorics | |
| 10884 - Persephone | 10884 | Dynamic Programming | |
| 10885 - Martin the Gardener | 10885 | Math | |
| 10886 - Standard Deviation | 10886 | | |
| 10887 - Concatenation of Languages | 10887 | Hashtable | |
| 10888 - Warehouse | 10888 | Shortest path, Weighted Bipartite Matching | |
| 10889 - The Lost Gift | 10889 | Probability Theory | |
| 10890 - Maze | 10890 | Graph Theory, Backtracking | |
| 10891 - Game of Sum | 10891 | Dynamic Programming | |
| 10892 - LCM Cardinality | 10892 | Number Theory | |
| 10893 - Creating Sudoku Puzzles | 10893 | Backtracking | |
| 10894 - Save Hridoy | 10894 | Ad Hoc | |
| 10895 - Matrix Transpose | 10895 | Ad Hoc | |
| 10896 - Known Plaintext Attack | 10896 | Bruteforce | |
| 10897 - Travelling Distance | 10897 | Geometry | |
| 10898 - Combo Deal | 10898 | Dynamic Programming | |
| 10899 - Billiard again | 10899 | Computational Geometry, Simulation | |
