| 2044E | Insane Problem | | | 1300 | 18.6k |
| 2043C | Sums on Segments | | | 1600 | 11.5k |
| 2040B | Paint a Strip | | | 1000 | 24.5k |
| 2040C | Ordered Permutations | | | 1600 | 11k |
| 2040E | Control of Randomness | | | 2100 | 2.8k |
| 2039D | Shohag Loves GCD | | | 1700 | 7.2k |
| 2038B | Make It Equal | | | 2100 | 2k |
| 2038E | Barrels | | | 2900 | 158 |
| 2038K | Grid Walk | | | 2100 | 1.8k |
| 2038L | Bridge Renovation | | | 1400 | 8.3k |
| 2037C | Superultra's Favorite Permutation | | | 1000 | 26k |
| 2035B | Everyone Loves Tres | | | 900 | 20.9k |
| 2035D | Yet Another Real Number Problem | | | 1800 | 5.9k |
| 2035E | Monster | | | 2300 | 2k |
| 2034E | Permutations Harmony | | | 2200 | 2.1k |
| 2033D | Kousuke's Assignment | | | 1300 | 18.6k |
| 2033E | Sakurako, Kosuke, and the Permutation | | | 1400 | 14.5k |
| 2032A | Circuit | | | 800 | 24.9k |
| 2032B | Medians | | | 1100 | 21.1k |
| 2032E | Balanced | | | 2400 | 1.4k |
| 2031A | Penchick and Modern Monument | | | 800 | 21.2k |
| 2031E | Penchick and Chloe's Trees | | | 2100 | 2.8k |
| 2030A | A Gift From Orangutan | | | 800 | 27.8k |
| 2030E | MEXimize the Score | | | 2200 | 2k |
| 2030G1 | The Destruction of the Universe (Easy Version) | | | 2900 | 269 |
| 2029A | Set | | | 800 | 14.3k |
| 2028E | Alice's Adventures in the Rabbit Hole | | | 2300 | 2k |
| 2026A | Perpendicular Segments | | | 900 | 20.5k |
| 2025E | Card Game | | | 2200 | 2.4k |
| 2024A | Profitable Interest Rate | | | 800 | 23.2k |
| 2023A | Concatenation of Arrays | | | 1300 | 16.9k |
| 2023D | Many Games | | | 2900 | 612 |
| 2023F | Hills and Pits | | | 3500 | 137 |
| 2022A | Bus to Pénjamo | | | 800 | 17.4k |
| 2022B | Kar Salesman | | | 1300 | 14.9k |
| 2021A | Meaning Mean | | | 800 | 21.8k |
| 2021B | Maximize Mex | | | 1200 | 19.2k |
| 2021E1 | Digital Village (Easy Version) | | | 2300 | 2k |
| 2021E3 | Digital Village (Extreme Version) | | | 2800 | 725 |
| 2020A | Find Minimum Operations | | | 800 | 26.2k |
| 2018A | Cards Partition | | | 1600 | 12.9k |
| 2018E1 | Complex Segments (Easy Version) | | | 3300 | 246 |
| 2018E2 | Complex Segments (Hard Version) | | | 3400 | 210 |
| 2018F1 | Speedbreaker Counting (Easy Version) | | | 2900 | 344 |
| 2018F2 | Speedbreaker Counting (Medium Version) | | | 3000 | 301 |
| 2018F3 | Speedbreaker Counting (Hard Version) | | | 3100 | 339 |
| 2014C | Robin Hood in Town | | | 1100 | 28k |
| 2013B | Battle for Survive | | | 900 | 28.7k |
| 2013E | Prefix GCD | | | 2200 | 4.4k |
| 2008A | Sakurako's Exam | | | 800 | 42.3k |
| 2008G | Sakurako's Task | | | 1800 | 6.8k |
| 2008H | Sakurako's Test | | | 2100 | 3.7k |
| 2007A | Dora's Set | | | 800 | 25.5k |
| 2006D | Iris and Adjacent Products | | | 2600 | 997 |
| 2005A | Simple Palindrome | | | 900 | 26.7k |
| 2005B1 | The Strict Teacher (Easy Version) | | | 1000 | 25.2k |
| 2005B2 | The Strict Teacher (Hard Version) | | | 1200 | 22.2k |
| 2004F | Make a Palindrome | | | 2600 | 1.4k |
| 2003D1 | Turtle and a MEX Problem (Easy Version) | | | 1500 | 13.7k |
| 2003D2 | Turtle and a MEX Problem (Hard Version) | | | 2100 | 4.7k |
| 2003E1 | Turtle and Inversions (Easy Version) | | | 2600 | 902 |
| 2003E2 | Turtle and Inversions (Hard Version) | | | 2700 | 654 |
| 2003F | Turtle and Three Sequences | | | 2800 | 838 |
| 2002C | Black Circles | | | 1200 | 18k |
| 2000E | Photoshoot for Gorillas | | | 1400 | 16.5k |
| 2000F | Color Rows and Columns | | | 1900 | 7.1k |
| 1997F | Chips on a Line | | | 2700 | 1.3k |
| 1996F | Bomb | | | 1900 | 6.5k |
| 1995A | Diagonals | | | 800 | 26.6k |
| 1995B2 | Bouquet (Hard Version) | | | 1700 | 10.3k |
| 1995C | Squaring | | | 1800 | 10.4k |
| 1994B | Fun Game | | | 1100 | 19.8k |
| 1994D | Funny Game | | | 1900 | 7.7k |
| 1994E | Wooden Game | | | 2000 | 5.7k |
| 1994H | Fortnite | | | 3500 | 779 |
| 1992A | Only Pluses | | | 800 | 50.1k |
| 1992B | Angry Monk | | | 800 | 38.5k |
| 1991C | Absolute Zero | | | 1300 | 18k |
| 1991D | Prime XOR Coloring | | | 1900 | 8k |
| 1991F | Triangle Formation | | | 2200 | 2.8k |
| 1990C | Mad MAD Sum | | | 1500 | 14.9k |
| 1989C | Two Movies | | | 1400 | 22.9k |
| 1989D | Smithing Skill | | | 1900 | 7.2k |
| 1988A | Split the Multiset | | | 900 | 27.3k |
| 1987A | Upload More RAM | | | 800 | 29.3k |
| 1986D | Mathematical Problem | | | 1400 | 18.2k |
| 1986E | Beautiful Array | | | 1700 | 11.1k |
| 1984C1 | Magnitude (Easy Version) | | | 1300 | 20.5k |
| 1984C2 | Magnitude (Hard Version) | | | 1700 | 8.8k |
| 1983B | Corner Twist | | | 1200 | 18.6k |
| 1983D | Swap Dilemma | | | 1700 | 11.5k |
| 1982A | Soccer | | | 800 | 27.7k |
| 1981A | Turtle and Piggy Are Playing a Game | | | 800 | 24.4k |
| 1981C | Turtle and an Incomplete Sequence | | | 1800 | 6.4k |
| 1980D | GCD-sequence | | | 1400 | 17.7k |
| 1980E | Permutation of Rows and Columns | | | 1600 | 13.3k |
| 1978B | New Bakery | | | 800 | 25.6k |
| 1978C | Manhattan Permutations | | | 1300 | 18k |
| 1978D | Elections | | | 1600 | 13.9k |
| 1977B | Binary Colouring | | | 1100 | 20.1k |