| # | Problem | Language | Link | Date |
|---|---|---|---|---|
| 17 | Array Checksum | JavaScript | view | Jun 16 2016 |
| 19 | Matching Brackets | C/C++ | view | Jun 11 2020 |
| 22 | Two Printers | C/C++ | view | Jun 12 2020 |
| 23 | Bubble in Array | C/C++ | view | Jun 16 2016 |
| 24 | Neumann's Random Generator | Python | view | Jan 8 2016 |
| 39 | Share Price Volatility | Python | view | Jun 12 2020 |
| 46 | Tic-Tac-Toe | Python | view | Sep 15 2017 |
| 47 | Caesar Shift Cipher | C/C++ | view | Feb 23 2020 |
| 51 | Dungeons and Dragons Dice | Python | view | Jun 16 2020 |
| 51 | Dungeons and Dragons Dice | C# | view | Jun 14 2020 |
| 55 | Matching Words | Java | view | Jun 11 2020 |
| 56 | Life is Simple | C/C++ | view | Jun 12 2020 |
| 59 | Bulls and Cows | C/C++ | view | Feb 23 2020 |
| 60 | Sweet Harvest | Python | view | Jun 14 2020 |
| 62 | Prime Ranges | Java | view | May 23 2019 |
| 64 | Maze Pathfinder | C# | view | Jun 18 2020 |
| 65 | Transitive Closure on Candy States | C/C++ | view | Jul 24 2020 |
| 65 | Transitive Closure on Candy States | Python | view | Jun 23 2020 |
| 66 | Caesar Cipher Cracker | Ruby | view | Jul 9 2020 |
| 74 | Clock Hands | Python | view | Jun 14 2020 |
| 76 | Pawn Move Validator | C/C++ | view | Jun 24 2020 |
| 81 | Bit Count | C/C++ | view | Feb 1 2016 |
| 83 | Graph Generator | Python | view | Jul 1 2020 |
| 84 | Dijkstra in the Network | Brainfuck | view | Jul 8 2020 |
| 86 | Brainfuck Interpreter | Java | view | Jun 12 2020 |
| 90 | Lexicographic Permutations | C# | view | Jul 2 2020 |
| 90 | Lexicographic Permutations | Java | view | Jul 12 2020 |
| 90 | Lexicographic Permutations | Python | view | Jul 13 2020 |
| 92 | Binary Heap | C/C++ | view | Jun 14 2020 |
| 93 | Starving Priority Queue | C/C++ | view | Jul 8 2020 |
| 94 | Fool's Day 2014 | C/C++ | view | Dec 9 2015 |
| 96 | Snake Arcade | C/C++ | view | Jul 8 2020 |
| 98 | Azimuth at Treasure Island | Python | view | Jun 17 2020 |
| 100 | Crossing the Road | C/C++ | view | Jul 14 2020 |
| 100 | Crossing the Road | Python | view | Jul 14 2020 |
| 102 | Travelling Salesman | C/C++ | view | Jul 8 2020 |
| 103 | Easter Eggs | C/C++ | view | Jul 8 2020 |
| 105 | Convex Polygon Area | Python | view | Jun 16 2020 |
| 106 | Random Search Optimization | C# | view | Jul 4 2020 |
| 106 | Random Search Optimization | Python | view | Jul 10 2020 |
| 107 | Knight's Tour | C/C++ | view | Jul 14 2020 |
| 109 | Lucky Tickets | C/C++ | view | Jul 13 2020 |
| 109 | Lucky Tickets | Python | view | Jun 13 2020 |
| 111 | Necklace Count | C/C++ | view | Jul 1 2020 |
| 113 | Ground Zero | C/C++ | view | Jul 23 2020 |
| 115 | Gradient Descent for SLE | Python | view | Jul 14 2020 |
| 118 | Maxit Single-Player | Python | view | Jun 13 2020 |
| 125 | Bogosort | Python | view | Jul 2 2020 |
| 128 | Combinations Counting | C/C++ | view | Feb 2 2016 |
| 129 | Enumerating Combinations | Python | view | Jul 11 2020 |
| 130 | Combinations with Repetitions | C/C++ | view | Jul 3 2020 |
| 131 | Four Pics One Word | Python | view | Jun 23 2020 |
| 136 | Variable Length Code Unpack | Python | view | Jul 2 2020 |
| 137 | Shannon-Fano Coding | C/C++ | view | Jul 14 2020 |
| 138 | Huffman Coding | Python | view | Jul 11 2020 |
| 139 | Beam Balance and Masses | C/C++ | view | Jun 25 2020 |
| 139 | Beam Balance and Masses | PHP | view | Jun 25 2020 |
| 139 | Beam Balance and Masses | Python | view | Jun 25 2020 |
| 140 | Proper Bracket Sequences | Python | view | Jul 17 2020 |
| 141 | Sliding Window Search | Python | view | Jul 8 2020 |
| 143 | Extended Euclidean Algorithm | C# | view | Jun 20 2020 |
| 144 | Modular Inverse | C/C++ | view | Jul 17 2020 |
| 144 | Modular Inverse | Python | view | Jul 11 2020 |
| 146 | Color Cubes | C# | view | Jul 14 2020 |
| 148 | Public Key Cryptography Intro | Python | view | Jul 27 2020 |
| 149 | Prime Chains | Python | view | Jul 16 2020 |
| 151 | Word Ladders | Python | view | Jul 11 2020 |
| 152 | RSA Cryptography | Python | view | Jul 3 2020 |
| 154 | Breadth First Search | Python | view | Jul 3 2020 |
| 154 | Breadth First Search | C# | view | Jun 24 2020 |
| 155 | Depth First Search | Java | view | Jul 17 2020 |
| 156 | Luhn Algorithm | C/C++ | view | Jun 12 2020 |
| 157 | Emirp primE | Python | view | Jun 13 2020 |
| 157 | Emirp primE | Java | view | Jun 24 2020 |
| 158 | Hamming Codes | C# | view | Jul 4 2020 |
| 160 | Social Web Scraper | Python | view | Jul 15 2020 |
| 161 | Topological Sorting | C/C++ | view | Jul 9 2020 |
| 162 | Rubik's Cube | C/C++ | view | Jun 18 2020 |
| 163 | Colliding Balls | Python | view | Jul 7 2020 |
| 164 | Page Rank | C/C++ | view | Jul 4 2020 |
| 165 | Safe Landing | C# | view | Jun 15 2020 |
| 168 | Caesar meets BF | Brainfuck | view | Jul 9 2020 |
| 168 | Caesar meets BF | Python | view | Jul 9 2020 |
| 169 | Automated Landing | C# | view | May 23 2019 |
| 170 | Binary Search in Array | Python | view | Jul 9 2020 |
| 173 | Chords of Music | C/C++ | view | Jul 11 2020 |
| 174 | Calculation of Pi | Python | view | Jul 14 2020 |
| 174 | Calculation of Pi | C/C++ | view | Jun 24 2020 |
| 175 | Algae Robot | Python | view | Jul 3 2020 |
| 176 | Say 100 | Python | view | Jul 1 2020 |
| 176 | Say 100 | Java | view | Jun 24 2020 |
| 180 | Simple Game of Sticks | C/C++ | view | Jun 17 2020 |
| 182 | Frodo and Black Riders | C/C++ | view | Jun 24 2020 |
| 192 | Gangster Battles | Python | view | Jul 23 2020 |
| 197 | Loops in Assembly | Asm4004 | view | Jul 16 2020 |
| 198 | Prn Hex Str | Asm4004 | view | Jul 16 2020 |
| 199 | Employees Web App | C# | view | Jul 3 2020 |
| 199 | Employees Web App | Python | view | Jul 15 2020 |
| 199 | Employees Web App | PHP | view | Jul 3 2020 |
| 200 | Fizz Buzz in Asm | Asm4004 | view | Jun 15 2020 |
| 204 | Wandering Star | C/C++ | view | Dec 12 2019 |
| 204 | Wandering Star | Python | view | Jun 12 2020 |
| 206 | Base-32 Encoding | Python | view | Jul 21 2020 |
| 206 | Base-32 Encoding | C/C++ | view | Jun 18 2020 |
| 209 | Suffix Array Advanced | C/C++ | view | Jul 14 2020 |
| 210 | Ticket Puzzle | Python | view | Jun 25 2020 |
| 213 | Micro-Life | Asm4004 | view | Jul 12 2020 |
| 214 | Sick Travellers | C/C++ | view | May 25 2019 |
| 215 | Klotski | Python | view | Jul 3 2020 |
| 216 | Cracking Linear Congruential Generator | C/C++ | view | Jul 3 2020 |
| 217 | Personality Swap | C/C++ | view | Jul 20 2020 |
| 217 | Personality Swap | Python | view | Jul 3 2020 |
| 218 | Rain Must Fall | C/C++ | view | Jul 27 2020 |