| 965E | Short Code | | | 2200 | 2k |
| 963B | Destruction of a Tree | | | 2000 | 3k |
| 961B | Lecture Sleep | | | 1200 | 27.1k |
| 960E | Alternating Tree | | | 2300 | 2.4k |
| 960F | Pathwalks | | | 2100 | 3.5k |
| 960G | Bandit Blues | | | 2900 | 1.3k |
| 959E | Mahmoud and Ehab and the xor-MST | | | 1900 | 3.8k |
| 959F | Mahmoud and Ehab and yet another xor task | | | 2400 | 3k |
| 958C2 | Encryption (medium) | | | 2000 | 1.4k |
| 958C3 | Encryption (hard) | | | 2500 | 782 |
| 958E2 | Guard Duty (medium) | | | 2200 | 1.2k |
| 955F | Heaps | | | 2600 | 2k |
| 954F | Runner's Problem | | | 2100 | 1.4k |
| 954H | Path Counting | | | 2500 | 827 |
| 946D | Timetable | | | 1800 | 4.9k |
| 946F | Fibonacci String Subsequences | | | 2400 | 672 |
| 946G | Almost Increasing Array | | | 2500 | 839 |
| 940B | Our Tanya is Crying Out Loud | | | 1400 | 9.6k |
| 940E | Cashback | | | 2000 | 4.5k |
| 939F | Cutlet | | | 2400 | 1.3k |
| 938F | Erasing Substrings | | | 2700 | 673 |
| 936B | Sleepy Game | | | 2100 | 3.5k |
| 936D | World of Tank | | | 3000 | 398 |
| 935E | Fafa and Ancient Mathematics | | | 2300 | 1k |
| 933A | A Twisty Movement | | | 1800 | 5.5k |
| 933E | A Preponderant Reunion | | | 3200 | 314 |
| 932D | Tree | | | 2200 | 2.1k |
| 932E | Team Work | | | 2400 | 3.6k |
| 932F | Escape Through Leaf | | | 2700 | 4.3k |
| 932G | Palindrome Partition | | | 2900 | 1.2k |
| 930C | Teodor is not a liar! | | | 1900 | 2.4k |
| 930E | Coins Exhibition | | | 2900 | 553 |
| 928B | Chat | | | 1400 | 2.7k |
| 924C | Riverside Curio | | | 1700 | 4.3k |
| 924E | Wardrobe | | | 2700 | 593 |
| 924F | Minimal Subset Difference | | | 3200 | 403 |
| 922E | Birds | | | 2200 | 2.5k |
| 922F | Divisibility | | | 2400 | 768 |
| 920D | Tanks | | | 2400 | 835 |
| 919B | Perfect Number | | | 1100 | 32k |
| 919D | Substring | | | 1700 | 12.8k |
| 917A | The Monster | | | 1800 | 3.7k |
| 917B | MADMAX | | | 1700 | 4k |
| 917C | Pollywog | | | 2900 | 480 |
| 917D | Stranger Trees | | | 2600 | 1.5k |
| 915C | Permute Digits | | | 1700 | 7.6k |
| 914C | Travelling Salesman and Special Numbers | | | 1800 | 4.3k |
| 914G | Sum the Fibonacci | | | 2600 | 1.3k |
| 914H | Ember and Storm's Tree Game | | | 3400 | 322 |
| 913C | Party Lemonade | | | 1600 | 8.5k |
| 913E | Logical Expression | | | 2400 | 905 |
| 913F | Strongly Connected Tournament | | | 2800 | 816 |
| 910A | The Way to Home | | | 800 | 14.3k |
| 909C | Python Indentation | | | 1800 | 5.5k |
| 909E | Coprocessor | | | 1900 | 2.5k |
| 908D | New Year and Arbitrary Arrangement | | | 2200 | 2.7k |
| 908E | New Year and Entity Enumeration | | | 2500 | 871 |
| 908G | New Year and Original Order | | | 2800 | 1.7k |
| 906C | Party | | | 2400 | 1.6k |
| 906E | Reverses | | | 3300 | 583 |
| 903F | Clear The Matrix | | | 2200 | 796 |
| 900D | Unusual Sequences | | | 2000 | 3.9k |
| 900E | Maximum Questions | | | 2100 | 1.4k |
| 895C | Square Subsets | | | 2000 | 7.7k |
| 894A | QAQ | | | 800 | 39.9k |
| 894E | Ralph and Mushrooms | | | 2100 | 3.4k |
| 893D | Credit Card | | | 1900 | 3.4k |
| 893E | Counting Arrays | | | 2000 | 4.3k |
| 891A | Pride | | | 1500 | 15k |
| 891D | Sloth | | | 3100 | 344 |
| 889E | Mod Mod Mod | | | 3000 | 743 |
| 888D | Almost Identity Permutations | | | 1600 | 10.8k |
| 888F | Connecting Vertices | | | 2500 | 1.2k |
| 886E | Maximum Element | | | 2400 | 1.3k |
| 883D | Packmen Strike Back | | | 2500 | 505 |
| 883I | Photo Processing | | | 1900 | 2.4k |
| 878E | Numbers on the blackboard | | | 3300 | 767 |
| 877B | Nikita and string | | | 1500 | 12.1k |
| 875E | Delivery Club | | | 2600 | 1k |
| 873B | Balanced Substring | | | 1500 | 9.2k |
| 873E | Awards For Contestants | | | 2300 | 817 |
| 870C | Maximum splitting | | | 1300 | 9.8k |
| 869C | The Intriguing Obsession | | | 1800 | 5.3k |
| 868C | Qualification Rounds | | | 1500 | 5.1k |
| 868D | Huge Strings | | | 2200 | 1k |
| 868E | Policeman and a Tree | | | 2700 | 569 |
| 868F | Yet Another Minimization Problem | | | 2500 | 5.4k |
| 865C | Gotta Go Fast | | | 2400 | 963 |
| 865E | Hex Dyslexia | | | 3300 | 162 |
| 864E | Fire | | | 2000 | 4.8k |
| 859C | Pie Rules | | | 1500 | 6.2k |
| 859D | Third Month Insanity | | | 2100 | 1.2k |
| 858C | Did you mean... | | | 1500 | 5.9k |
| 856B | Similar Words | | | 2300 | 653 |
| 856C | Eleventh Birthday | | | 2400 | 752 |
| 856D | Masha and Cactus | | | 2400 | 624 |
| 855B | Marvolo Gaunt's Ring | | | 1500 | 10k |
| 855C | Helga Hufflepuff's Cup | | | 2000 | 2.5k |
| 855E | Salazar Slytherin's Locket | | | 2200 | 2.3k |
| 855G | Harry Vs Voldemort | | | 3300 | 415 |