| 2026D | Sums of Segments | | | 1900 | 6.1k |
| 2025D | Attribute Checks | | | 1800 | 8k |
| 2022A | Bus to Pénjamo | | | 800 | 17.4k |
| 2021E1 | Digital Village (Easy Version) | | | 2300 | 2k |
| 2020C | Bitwise Balancing | | | 1400 | 18.7k |
| 2019B | All Pairs Segments | | | 1200 | 17.6k |
| 2018A | Cards Partition | | | 1600 | 12.9k |
| 2010A | Alternating Sum of Numbers | | | 800 | 21.5k |
| 2010B | Three Brothers | | | 800 | 25k |
| 2009C | The Legend of Freya the Frog | | | 1100 | 33.7k |
| 2006D | Iris and Adjacent Products | | | 2600 | 997 |
| 2004A | Closest Point | | | 800 | 34k |
| 2003D2 | Turtle and a MEX Problem (Hard Version) | | | 2100 | 4.7k |
| 2002A | Distanced Coloring | | | 800 | 21.4k |
| 2000A | Primary Task | | | 800 | 44.7k |
| 2000F | Color Rows and Columns | | | 1900 | 7.1k |
| 1999A | A+B Again? | | | 800 | 86.7k |
| 1999E | Triple Operations | | | 1300 | 24.3k |
| 1998A | Find K Distinct Points with Fixed Center | | | 800 | 26.3k |
| 1996E | Decode | | | 1600 | 12.9k |
| 1995A | Diagonals | | | 800 | 26.6k |
| 1995C | Squaring | | | 1800 | 10.4k |
| 1993C | Light Switches | | | 1400 | 16.4k |
| 1992E | Novice's Mistake | | | 1700 | 11k |
| 1991F | Triangle Formation | | | 2200 | 2.8k |
| 1988A | Split the Multiset | | | 900 | 27.3k |
| 1986D | Mathematical Problem | | | 1400 | 18.2k |
| 1985D | Manhattan Circle | | | 900 | 42.1k |
| 1984B | Large Addition | | | 1100 | 21.2k |
| 1984D | ''a'' String Problem | | | 2000 | 4k |
| 1983B | Corner Twist | | | 1200 | 18.6k |
| 1982A | Soccer | | | 800 | 27.7k |
| 1982B | Collatz Conjecture | | | 1200 | 20k |
| 1982D | Beauty of the mountains | | | 1700 | 10.2k |
| 1981C | Turtle and an Incomplete Sequence | | | 1800 | 6.4k |
| 1980D | GCD-sequence | | | 1400 | 17.7k |
| 1980E | Permutation of Rows and Columns | | | 1600 | 13.3k |
| 1978C | Manhattan Permutations | | | 1300 | 18k |
| 1978D | Elections | | | 1600 | 13.9k |
| 1973A | Chess For Three | | | 900 | 28.9k |
| 1973C | Cat, Fox and Double Maximum | | | 1700 | 10k |
| 1971F | Circle Perimeter | | | 1600 | 12.7k |
| 1969A | Two Friends | | | 800 | 22.3k |
| 1967A | Permutation Counting | | | 1400 | 15.2k |
| 1956D | Nene and the Mex Operator | | | 2000 | 4.9k |
| 1956E1 | Nene vs. Monsters (Easy Version) | | | 2500 | 1.7k |
| 1956E2 | Nene vs. Monsters (Hard Version) | | | 2700 | 1.1k |
| 1955C | Inhabitant of the Deep Sea | | | 1300 | 25k |
| 1955G | GCD on a grid | | | 1900 | 6.1k |
| 1954B | Make It Ugly | | | 1200 | 21.9k |
| 1954E | Chain Reaction | | | 2200 | 3k |
| 1951E | No Palindromes | | | 2000 | 4.6k |
| 1950C | Clock Conversion | | | 800 | 47.5k |
| 1943B | Non-Palindromic Substring | | | 2000 | 4.7k |
| 1942F | Farmer John's Favorite Function | | | 2700 | 1k |
| 1937A | Shuffle Party | | | 800 | 24.9k |
| 1936B | Pinball | | | 2000 | 3.6k |
| 1935D | Exam in MAC | | | 1800 | 11k |
| 1933B | Turtle Math: Fast Three Task | | | 800 | 37k |
| 1933C | Turtle Fingers: Count the Values of k | | | 1100 | 25.7k |
| 1933E | Turtle vs. Rabbit Race: Optimal Trainings | | | 1500 | 13.9k |
| 1932C | LR-remainders | | | 1400 | 19.3k |
| 1932E | Final Countdown | | | 1600 | 10.4k |
| 1928F | Digital Patterns | | | 2900 | 479 |
| 1926E | Vlad and an Odd Ordering | | | 1500 | 15.2k |
| 1924B | Space Harbour | | | 2100 | 3.4k |
| 1922C | Closest Cities | | | 1300 | 22.4k |
| 1922D | Berserk Monsters | | | 1900 | 6.9k |
| 1921F | Sum of Progression | | | 1900 | 5.2k |
| 1920D | Array Repetition | | | 1900 | 6.7k |
| 1919E | Counting Prefixes | | | 2600 | 1.2k |
| 1918A | Brick Wall | | | 800 | 32.6k |
| 1918C | XOR-distance | | | 1400 | 17.1k |
| 1917C | Watering an Array | | | 1600 | 12.6k |
| 1917D | Yet Another Inversions Problem | | | 2300 | 2.1k |
| 1916A | 2023 | | | 800 | 28.5k |
| 1916C | Training Before the Olympiad | | | 1200 | 20.1k |
| 1912E | Evaluate It and Back Again | | | 2200 | 1.3k |
| 1909A | Distinct Buttons | | | 800 | 19.1k |
| 1905D | Cyclic MEX | | | 2000 | 4.8k |
| 1902F | Trees and XOR Queries Again | | | 2400 | 1.5k |
| 1901D | Yet Another Monster Fight | | | 1700 | 8.8k |
| 1896F | Bracket Xoring | | | 2600 | 1k |
| 1895C | Torn Lucky Ticket | | | 1400 | 13.3k |
| 1891E | Brukhovich and Exams | | | 2500 | 1.1k |
| 1884E | Hard Design | | | 2800 | 440 |
| 1873C | Target Practice | | | 800 | 74.6k |
| 1872F | Selling a Menagerie | | | 1800 | 7.7k |
| 1870C | Colorful Table | | | 1300 | 13.3k |
| 1868B1 | Candy Party (Easy Version) | | | 1700 | 8.4k |
| 1868B2 | Candy Party (Hard Version) | | | 2100 | 2.8k |
| 1868C | Travel Plan | | | 2400 | 1.4k |
| 1864A | Increasing and Decreasing | | | 800 | 21.5k |
| 1863C | MEX Repetition | | | 1100 | 15.7k |
| 1861E | Non-Intersecting Subpermutations | | | 2300 | 2.1k |
| 1860F | Evaluate RBS | | | 2900 | 350 |
| 1857B | Maximum Rounding | | | 1100 | 24.9k |
| 1856B | Good Arrays | | | 900 | 27.8k |
| 1856E2 | PermuTree (hard version) | | | 2700 | 1.8k |
| 1851D | Prefix Permutation Sums | | | 1300 | 17.5k |