82 problems
| Problem ID | Title | Link | Rating | Judge State | Source |
|---|---|---|---|---|---|
| 1 | A+B | View | 800 | yes | admin@ian@ |
| 2 | A-B | View | 800 | yes | admin@ian@ |
| 3 | Power Metre (1) | View | 900 | wontfix | KL Coding Cup 2022 > Problem 1 > Developmental League |
| 4 | Power Metre (2) | View | 800 | yes | KL Coding Cup 2022 > Problem 1 > Intermediate League |
| 5 | Power Metre (3) | View | 1000 | wontfix | KL Coding Cup 2022 > Problem 1 > Advanced League |
| 6 | Report Writer (1) | View | 900 | wontfix | KL Coding Cup 2022 > Problem 2 > Developmental League |
| 7 | Report Writer (2) | View | 900 | wontfix | KL Coding Cup 2022 > Problem 2 > Intermediate League |
| 8 | Report Writer (3) | View | 800 | wontfix | KL Coding Cup 2022 > Problem 2 > Advanced League |
| 9 | Time is Power (1) | View | 800 | wontfix | KL Coding Cup 2022 > Problem 3 > Developmental League |
| 10 | Time is Power (2) | View | 800 | wontfix | KL Coding Cup 2022 > Problem 3 > Intermediate League |
| 11 | Time is Power (3) | View | 1300 | wontfix | KL Coding Cup 2022 > Problem 3 > Advanced League |
| 12 | Calculator (1) | View | 1000 | wontfix | KL Coding Cup 2022 > Problem 4 > Developmental League |
| 13 | Calculator (2) | View | 900 | wontfix | KL Coding Cup 2022 > Problem 4 > Intermediate League |
| 14 | Calculator (3) | View | 1100 | wontfix | KL Coding Cup 2022 > Problem 4 > Advanced League |
| 15 | Budgets (1) | View | 900 | wontfix | KL Coding Cup 2022 > Problem 5 > Developmental League |
| 16 | Budgets (2) | View | 800 | wip | KL Coding Cup 2022 > Problem 5 > Intermediate League |
| 17 | Budgets (3) | View | 800 | wontfix | KL Coding Cup 2022 > Problem 5 > Advanced League |
| 18 | Encryption (1) | View | 1000 | yes | KL Coding Cup 2022 > Problem 6 > Developmental League |
| 19 | Encryption (2) | View | 1000 | wontfix | KL Coding Cup 2022 > Problem 6 > Intermediate League |
| 20 | Encryption (3) | View | 1200 | yes | KL Coding Cup 2022 > Problem 6 > Advanced League |
| 21 | Close Proximity (1) | View | 900 | wip | KL Coding Cup 2022 > Problem 7 > Developmental League |
| 22 | Close Proximity (2) | View | 1000 | wip | KL Coding Cup 2022 > Problem 7 > Intermediate League |
| 23 | Close Proximity (3) | View | 1200 | wip | KL Coding Cup 2022 > Problem 7 > Advanced League |
| 24 | For the People (1) | View | 1000 | wip | KL Coding Cup 2022 > Problem 8 > Developmental League |
| 25 | For the People (2) | View | 1000 | wip | KL Coding Cup 2022 > Problem 8 > Intermediate League |
| 26 | For the People (3) | View | 1100 | wontfix | KL Coding Cup 2022 > Problem 8 > Advanced League |
| 31 | Chuck the Wallbreaker | View | 900 | yes | KL Coding Cup March 2023 > Angry Birds > Problem 1 |
| 32 | Stolen Eggs | View | 900 | yes | KL Coding Cup March 2023 > Angry Birds > Problem 2 |
| 33 | Hit the Bad Piggie! | View | 1500 | yes | KL Coding Cup March 2023 > Angry Birds > Problem 3 |
| 34 | Fireball Bounce | View | 800 | yes | KL Coding Cup March 2023 > Super Mario > Problem 1 |
| 35 | Goomba Jump | View | 1000 | yes | KL Coding Cup March 2023 > Super Mario > Problem 2 |
| 36 | Super Jump | View | 900 | yes | KL Coding Cup March 2023 > Super Mario > Problem 3 |
| 37 | Poke Duel | View | 800 | wip | KL Coding Cup March 2023 > Pokemon > Problem 1 |
| 38 | Pokedex Count | View | 900 | wip | KL Coding Cup March 2023 > Pokemon > Problem 2 |
| 39 | Poke Battle | View | 1200 | wip | KL Coding Cup March 2023 > Pokemon > Problem 3 |
| 40 | Peas | View | 800 | wip | KL Coding Cup March 2023 > Plants vs Zombies > Problem 1 |
| 41 | I, Zombie | View | 1000 | wip | KL Coding Cup March 2023 > Plants vs Zombies > Problem 2 |
| 42 | Lawn of Threepeaters | View | 1200 | wip | KL Coding Cup March 2023 > Plants vs Zombies > Problem 3 |
| 43 | Score Difference | View | 800 | wip | KL Coding Cup March 2023 > Pong > Problem 1 |
| 44 | Glitched Pong | View | 900 | wip | KL Coding Cup March 2023 > Pong > Problem 2 |
| 45 | One Dimensional Pong | View | 1200 | wip | KL Coding Cup March 2023 > Pong > Problem 3 |
| 46 | Rickroll | View | 800 | yes | Test Contest > Problem A |
| 47 | Atomic Spelling | View | 1500 | yes | Test Contest > Problem B |
| 48 | ASCII | View | 900 | yes | Test Contest > Problem C |
| 49 | Hello World! | View | 800 | yes | KL Coding Cup October 2024 > Problem 1 |
| 50 | Breaking Even | View | 900 | wip | KL Coding Cup October 2024 > Problem 2 |
| 51 | Space Well | View | 1000 | wip | KL Coding Cup October 2024 > Problem 3 |
| 52 | Password Decryption 1 | View | 1000 | wip | KL Coding Cup October 2024 > Problem 4 |
| 53 | Spiced Pie | View | 900 | wip | KL Coding Cup October 2024 > Problem 5 |
| 54 | Cerberus | View | 900 | wip | KL Coding Cup October 2024 > Problem 6 |
| 55 | Kwanha's Bomb | View | 800 | yes | IanOJ Contest #1 (Div. 3) > Problem A |
| 56 | Doors | View | 1000 | yes | IanOJ Contest #1 (Div. 3) > Problem B |
| 57 | Hashtags | View | 1400 | yes | IanOJ Contest #1 (Div. 3) > Problem C |
| 58 | Deadly Tag | View | 1500 | yes | IanOJ Contest #1 (Div. 3) > Problem D |
| 59 | Fibonacci (easy version) | View | 1200 | yes | IanOJ Contest #1 (Div. 3) > Problem E1 |
| 60 | Fibonacci (hard version) | View | 1600 | yes | IanOJ Contest #1 (Div. 3) > Problem E2 |
| T | I/O Tutorial (0 points) | View | 800 | yes | IanOJ Contest #2 (Div. 4) > Problem T |
| 61 | Counter (100 points) | View | 800 | yes | IanOJ Contest #2 (Div. 4) > Problem A (Contributed by bronze@HungJan@) |
| 62 | Sum (100 points) | View | 800 | yes | IanOJ Contest #2 (Div. 4) > Problem B (Contributed by admin@ian@) |
| 63 | Fizz Buzz (100 points) | View | 900 | yes | IanOJ Contest #2 (Div. 4) > Problem C (Contributed by admin@ian@) |
| 64 | Sum and Difference (easy version, 100 points) | View | 800 | yes | IanOJ Contest #2 (Div. 4) > Problem D1 (Contributed by bronze@HungJan@) |
| 65 | Sum and Difference (hard version, 200 points) | View | 1000 | yes | IanOJ Contest #2 (Div. 4) > Problem D2 (Contributed by bronze@HungJan@) |
| 66 | Pythagoras (200 points) | View | 900 | yes | IanOJ Contest #2 (Div. 4) > Problem E (Contributed by admin@ian@) |
| 67 | Sort | View | 800 | yes | admin@ian@ |
| 68 | Spaceship Refuel | View | 1000 | wip | KL Coding Cup October 2024 > Problem 7 |
| 69 | nice | View | 420 | yes | admin@ian@ |
| 70 | Inventory 1 | View | 900 | wip | KL Coding Cup October 2024 > Problem 8 |
| 71 | Decode 1 | View | 1000 | wip | KL Coding Cup October 2024 > Problem 9 |
| 72 | Space Colony Decision | View | 800 | wip | KL Coding Cup October 2024 > Problem 10 |
| 73 | Sorting Planets | View | 1000 | wip | KL Coding Cup October 2024 > Problem 11 |
| 74 | Spaceship Password | View | 1100 | wip | KL Coding Cup October 2024 > Problem 12 |
| 75 | Alien Decryptor | View | 1100 | wip | KL Coding Cup October 2024 > Problem 13 |
| 76 | Interplanetary Pathfinder | View | 1200 | wip | KL Coding Cup October 2024 > Problem 14 |
| 77 | Overlapping Planetary Areas | View | 1300 | wip | KL Coding Cup October 2024 > Problem 15 |
| 78 | Interconnected Planets | View | 1500 | wip | KL Coding Cup October 2024 > Problem 16 |
| 79 | Space Station Employment | View | 1200 | wip | KL Coding Cup October 2024 > Problem 17 |
| 80 | Interplanetary Cosmic Ballistic Missile | View | 1500 | wip | KL Coding Cup October 2024 > Problem 18 |
| 81 | Polynomial Sorter | View | 1200 | wip | bronze@HungJan@, silver@isaachew@ |
| 82 | Escape | View | 900 | wip | KL Coding Cup March 2023 > Snake > Problem 1 |
| 83 | Growth | View | 1000 | wip | KL Coding Cup March 2023 > Snake > Problem 2 |
| 84 | Lost Control | View | 1500 | wip | KL Coding Cup March 2023 > Snake > Problem 3 |
| 85 | Ghost Hunt (easy version) | View | 1000 | wip | KL Coding Cup March 2023 > Pac Man > Problem 1 |