| 1971E | Find the Car | | | 1500 | 18.7k |
| 1971F | Circle Perimeter | | | 1600 | 12.7k |
| 1971G | XOUR | | | 1700 | 11.7k |
| 1971H | ±1 | | | 2100 | 2.9k |
| 1970A1 | Balanced Shuffle (Easy) | | | 1000 | 7.5k |
| 1970A2 | Balanced Unshuffle (Medium) | | | 2400 | 621 |
| 1970A3 | Balanced Unshuffle (Hard) | | | 2400 | 688 |
| 1970B1 | Exact Neighbours (Easy) | | | 1900 | 1.7k |
| 1970B2 | Exact Neighbours (Medium) | | | 2100 | 1.2k |
| 1970B3 | Exact Neighbours (Hard) | | | 2300 | 736 |
| 1970C1 | Game on Tree (Easy) | | | 1400 | 5.2k |
| 1970C2 | Game on Tree (Medium) | | | 1700 | 4.5k |
| 1970C3 | Game on Tree (Hard) | | | 1900 | 2.5k |
| 1970D1 | Arithmancy (Easy) | | | 2100 | 967 |
| 1970D2 | Arithmancy (Medium) | | | 2600 | 332 |
| 1970D3 | Arithmancy (Hard) | | | 3100 | 167 |
| 1970E1 | Trails (Easy) | | | 1800 | 3.5k |
| 1970E2 | Trails (Medium) | | | 2000 | 2.2k |
| 1970E3 | Trails (Hard) | | | 2200 | 1.2k |
| 1970F1 | Playing Quidditch (Easy) | | | 2300 | 659 |
| 1970F2 | Playing Quidditch (Medium) | | | 2300 | 535 |
| 1970F3 | Playing Quidditch (Hard) | | | 2300 | 557 |
| 1970G1 | Min-Fund Prison (Easy) | | | 1900 | 2k |
| 1970G2 | Min-Fund Prison (Medium) | | | 2200 | 909 |
| 1970G3 | Min-Fund Prison (Hard) | | | 2400 | 575 |
| 1969A | Two Friends | | | 800 | 22.3k |
| 1969B | Shifts and Sorting | | | 1000 | 22.6k |
| 1969C | Minimizing the Sum | | | 1700 | 11.9k |
| 1969D | Shop Game | | | 1900 | 5.8k |
| 1969E | Unique Array | | | 2400 | 1.9k |
| 1969F | Card Pairing | | | 3000 | 414 |
| 1968A | Maximize? | | | 800 | 39.9k |
| 1968B | Prefiquence | | | 800 | 31.8k |
| 1968C | Assembly via Remainders | | | 1000 | 29.7k |
| 1968D | Permutation Game | | | 1300 | 17.7k |
| 1968E | Cells Arrangement | | | 1600 | 12.9k |
| 1968F | Equal XOR Segments | | | 1800 | 7.1k |
| 1968G1 | Division + LCP (easy version) | | | 1900 | 5.4k |
| 1968G2 | Division + LCP (hard version) | | | 2200 | 2.6k |
| 1967A | Permutation Counting | | | 1400 | 15.2k |
| 1967B1 | Reverse Card (Easy Version) | | | 1400 | 16.4k |
| 1967B2 | Reverse Card (Hard Version) | | | 2200 | 5k |
| 1967C | Fenwick Tree | | | 2300 | 2.3k |
| 1967D | Long Way to be Non-decreasing | | | 2800 | 999 |
| 1967E1 | Again Counting Arrays (Easy Version) | | | 3100 | 449 |
| 1967E2 | Again Counting Arrays (Hard Version) | | | 3500 | 231 |
| 1967F | Next and Prev | | | 3200 | 104 |
| 1966A | Card Exchange | | | 800 | 19.7k |
| 1966B | Rectangle Filling | | | 1100 | 17.5k |
| 1965A | Everything Nim | | | 1400 | 17.2k |
| 1965B | Missing Subsequence Sum | | | 1800 | 8.3k |
| 1965C | Folding Strip | | | 2300 | 2.5k |
| 1965D | Missing Subarray Sum | | | 2900 | 573 |
| 1965E | Connected Cubes | | | 3100 | 475 |
| 1965F | Conference | | | 3300 | 298 |
| 1958A | 1-3-5 | | | 1100 | 2.6k |
| 1958B | Clock in the Pool | | | 1400 | 1.2k |
| 1958C | Firewood | | | 1500 | 1k |
| 1958D | Staircase | | | 1600 | 732 |
| 1958E | Yet Another Permutation Constructive | | | 1900 | 336 |
| 1958F | Narrow Paths | | | 2000 | 266 |
| 1958G | Observation Towers | | | 2400 | 131 |
| 1958H | Composite Spells | | | 2600 | 97 |
| 1958I | Equal Trees | | | 3100 | 53 |
| 1958J | Necromancer | | | 3200 | 48 |
| 1957A | Stickogon | | | 800 | 25.8k |
| 1957B | A BIT of a Construction | | | 1100 | 20.7k |
| 1957C | How Does the Rook Move? | | | 1600 | 12.2k |
| 1957D | A BIT of an Inequality | | | 1900 | 6k |
| 1957E | Carousel of Combinations | | | 2400 | 1.7k |
| 1957F1 | Frequency Mismatch (Easy Version) | | | 2600 | 706 |
| 1957F2 | Frequency Mismatch (Hard Version) | | | 2700 | 659 |
| 1956A | Nene's Game | | | 800 | 24.5k |
| 1956B | Nene and the Card Game | | | 800 | 23.1k |
| 1956C | Nene's Magical Matrix | | | 1600 | 15.4k |
| 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 |
| 1956F | Nene and the Passing Game | | | 3000 | 747 |
| 1955A | Yogurt Sale | | | 800 | 53.6k |
| 1955B | Progressive Square | | | 1000 | 32.8k |
| 1955C | Inhabitant of the Deep Sea | | | 1300 | 25k |
| 1955D | Inaccurate Subsequence Search | | | 1400 | 18.9k |
| 1955E | Long Inversions | | | 1700 | 10.8k |
| 1955F | Unfair Game | | | 1800 | 8.9k |
| 1955G | GCD on a grid | | | 1900 | 6.1k |
| 1955H | The Most Reckless Defense | | | 2300 | 1.6k |
| 1954A | Painting the Ribbon | | | 900 | 28k |
| 1954B | Make It Ugly | | | 1200 | 21.9k |
| 1954C | Long Multiplication | | | 1200 | 23.2k |
| 1954D | Colored Balls | | | 1800 | 8.4k |
| 1954E | Chain Reaction | | | 2200 | 3k |
| 1954F | Unique Strings | | | 3100 | 430 |
| 1953A | Accuracy-Preserving Summation Algorithm | | | unrated | 0 |
| 1952A | Are You a Robot, Again? | | | unrated | 14.2k |
| 1952B | Is it stated? | | | unrated | 12.4k |
| 1952C | They Have Fooled | | | unrated | 3.3k |
| 1952D | Are You a Procrastinator? | | | unrated | 5.4k |
| 1952E | Sweep Line | | | unrated | 346 |
| 1952F | Grid | | | unrated | 2k |