| 727E | Games on a CD | | | 2300 | 1.6k |
| 725D | Contest Balloons | | | 1800 | 3.1k |
| 724D | Dense Subsequence | | | 1900 | 2.5k |
| 722C | Destroying Array | | | 1600 | 11.8k |
| 722D | Generating Sets | | | 1900 | 3.4k |
| 722F | Cyclic Cipher | | | 2800 | 640 |
| 721D | Maxim and Array | | | 2000 | 2.5k |
| 720D | Slalom | | | 3100 | 337 |
| 720F | Array Covering | | | 3100 | 215 |
| 718C | Sasha and Array | | | 2300 | 4.8k |
| 717F | Heroes of Making Magic III | | | 2600 | 420 |
| 713A | Sonya and Queries | | | 1400 | 8.9k |
| 713D | Animals and Puzzle | | | 2700 | 1.4k |
| 712E | Memory and Casinos | | | 2500 | 755 |
| 710F | String Set Queries | | | 2400 | 2.6k |
| 708C | Centroids | | | 2300 | 4.5k |
| 707D | Persistent Bookcase | | | 2200 | 3.1k |
| 707E | Garlands | | | 2400 | 1.7k |
| 706D | Vasiliy's Multiset | | | 1800 | 13.1k |
| 706E | Working routine | | | 2500 | 1.3k |
| 704A | Thor | | | 1600 | 10.3k |
| 704E | Iron Man | | | 3300 | 369 |
| 703D | Mishka and Interesting sum | | | 2100 | 4.2k |
| 702B | Powers of Two | | | 1500 | 13.9k |
| 702E | Analysis of Pathes in Functional Graph | | | 2100 | 3.2k |
| 702F | T-Shirts | | | 2800 | 2k |
| 701B | Cells Not Under Attack | | | 1200 | 12.6k |
| 700D | Huffman Coding on Segment | | | 3100 | 587 |
| 696A | Lorenzo Von Matterhorn | | | 1500 | 6.5k |
| 696D | Legen... | | | 2500 | 1.7k |
| 696E | ...Wait for it... | | | 3000 | 751 |
| 690B3 | Recover Polygon (hard) | | | 2600 | 131 |
| 689D | Friends and Subsequences | | | 2100 | 4.3k |
| 689E | Mike and Geometry Problem | | | 2000 | 2.3k |
| 687D | Dividing Kingdom II | | | 2500 | 1.2k |
| 685B | Kay and Snowflake | | | 1900 | 5.6k |
| 681C | Heap Operations | | | 1600 | 10.7k |
| 679E | Bear and Bad Powers of 42 | | | 3100 | 929 |
| 678F | Lena and Queries | | | 2500 | 1.1k |
| 677D | Vanya and Treasure | | | 2300 | 2.1k |
| 675C | Money Transfers | | | 2100 | 3.9k |
| 675D | Tree Construction | | | 1800 | 4.3k |
| 675E | Trains and Statistic | | | 2300 | 3.4k |
| 671C | Ultimate Weirdness of an Array | | | 2800 | 838 |
| 671D | Roads in Yusland | | | 2900 | 1.4k |
| 671E | Organizing a Race | | | 3300 | 505 |
| 670E | Correct Bracket Sequence Editor | | | 1700 | 3.5k |
| 666E | Forensic Examination | | | 3100 | 1.7k |
| 665E | Beautiful Subarrays | | | 2100 | 4.7k |
| 665F | Four Divisors | | | 2400 | 836 |
| 660F | Bear and Bowling 4 | | | 2500 | 2.5k |
| 659E | New Reform | | | 1600 | 8.1k |
| 653F | Paper task | | | 2600 | 1.2k |
| 652D | Nested Segments | | | 1800 | 5k |
| 650A | Watchmen | | | 1400 | 16.8k |
| 650D | Zip-line | | | 2600 | 1.7k |
| 650E | Clockwork Bomb | | | 3200 | 1.1k |
| 649E | Автобус | | | 2100 | 184 |
| 648D | Собачки и миски | | | 1900 | 357 |
| 644B | Processing Queries | | | 1700 | 2.9k |
| 644C | Hostname Aliases | | | 2100 | 1k |
| 643G | Choosing Ads | | | 3200 | 1.3k |
| 641E | Little Artem and Time Machine | | | 2000 | 4k |
| 639D | Bear and Contribution | | | 2400 | 1.1k |
| 639F | Bear and Chemistry | | | 3300 | 610 |
| 637B | Chat Order | | | 1200 | 24.4k |
| 637D | Running with Obstacles | | | 1600 | 2.1k |
| 633C | Spy Syndrome 2 | | | 1900 | 3.4k |
| 633E | Startup Funding | | | 2400 | 654 |
| 633G | Yash And Trees | | | 2800 | 934 |
| 633H | Fibonacci-ish II | | | 3100 | 814 |
| 631C | Report | | | 1700 | 4.5k |
| 631D | Messenger | | | 2100 | 2.5k |
| 631E | Product Sum | | | 2600 | 3.4k |
| 629D | Babaei and Birthday Cake | | | 2000 | 4.6k |
| 629E | Famil Door and Roads | | | 2300 | 1.2k |
| 628E | Zbazi in Zeydabad | | | 2300 | 1.1k |
| 627B | Factory Repairs | | | 1700 | 3.5k |
| 627C | Package Delivery | | | 2200 | 1.4k |
| 626G | Raffles | | | 3100 | 813 |
| 625E | Frog Fights | | | 2800 | 423 |
| 622C | Not Equal on a Segment | | | 1700 | 7.6k |
| 620E | New Year Tree | | | 2100 | 7.5k |
| 620F | Xors on Segments | | | 2800 | 910 |
| 618E | Robot Arm | | | 2500 | 727 |
| 617E | XOR and Favorite Number | | | 2200 | 11k |
| 616D | Longest k-Good Segment | | | 1600 | 13k |
| 616F | Expensive Strings | | | 2700 | 776 |
| 612C | Replace To Make Regular Bracket Sequence | | | 1400 | 10.1k |
| 611E | New Year and Three Musketeers | | | 2400 | 930 |
| 610D | Vika and Segments | | | 2300 | 1.8k |
| 610E | Alphabet Permutations | | | 2500 | 1.1k |
| 609E | Minimum spanning tree for each edge | | | 2100 | 10.7k |
| 609F | Frogs and mosquitoes | | | 2500 | 1.6k |
| 607D | Power Tree | | | 2600 | 688 |
| 605B | Lazy Student | | | 1700 | 3.9k |
| 605D | Board Game | | | 2500 | 966 |
| 603E | Pastoral Oddities | | | 3000 | 1.6k |
| 601B | Lipshitz Sequence | | | 2100 | 2.5k |
| 601D | Acyclic Organic Compounds | | | 2400 | 1.3k |