| 637C | Promocodes with Mistakes | | | 1400 | 2.5k |
| 637D | Running with Obstacles | | | 1600 | 2.1k |
| 635A | Orchestra | | | 1100 | 3.3k |
| 634A | Island Puzzle | | | 1300 | 3.5k |
| 633A | Ebony and Ivory | | | 1100 | 15k |
| 633B | A Trivial Problem | | | 1300 | 7.3k |
| 633C | Spy Syndrome 2 | | | 1900 | 3.4k |
| 633D | Fibonacci-ish | | | 2000 | 3.1k |
| 633E | Startup Funding | | | 2400 | 655 |
| 633F | The Chocolate Spree | | | 2600 | 1.4k |
| 633G | Yash And Trees | | | 2800 | 934 |
| 633H | Fibonacci-ish II | | | 3100 | 814 |
| 632A | Grandma Laura and Apples | | | 1200 | 5k |
| 632B | Alice, Bob, Two Teams | | | 1400 | 4.4k |
| 632C | The Smallest String Concatenation | | | 1700 | 10.9k |
| 632D | Longest Subsequence | | | 2100 | 4.7k |
| 632E | Thief in a Shop | | | 2400 | 3.7k |
| 632F | Magic Matrix | | | 2400 | 1.3k |
| 631A | Interview | | | 900 | 9.8k |
| 631B | Print Check | | | 1200 | 7.9k |
| 631C | Report | | | 1700 | 4.5k |
| 631D | Messenger | | | 2100 | 2.5k |
| 631E | Product Sum | | | 2600 | 3.4k |
| 630A | Again Twenty Five! | | | 800 | 96.6k |
| 630B | Moore's Law | | | 1200 | 8.5k |
| 630C | Lucky Numbers | | | 1100 | 27.6k |
| 630D | Hexagons! | | | 1100 | 12.8k |
| 630E | A rectangle | | | 1900 | 2.7k |
| 630F | Selection of Personnel | | | 1300 | 8.2k |
| 630G | Challenge Pennants | | | 1600 | 3.3k |
| 630H | Benches | | | 1400 | 5.8k |
| 630I | Parking Lot | | | 1700 | 8.5k |
| 630J | Divisibility | | | 1100 | 12.9k |
| 630K | Indivisibility | | | 1500 | 6.5k |
| 630L | Cracking the Code | | | 1400 | 4.1k |
| 630M | Turn | | | 1800 | 1.4k |
| 630N | Forecast | | | 1300 | 5.3k |
| 630O | Arrow | | | 2000 | 928 |
| 630P | Area of a Star | | | 2100 | 1.4k |
| 630Q | Pyramids | | | 1700 | 1.5k |
| 630R | Game | | | 1200 | 9.7k |
| 629A | Far Relative’s Birthday Cake | | | 800 | 15k |
| 629B | Far Relative’s Problem | | | 1100 | 8.4k |
| 629C | Famil Door and Brackets | | | 2000 | 3.1k |
| 629D | Babaei and Birthday Cake | | | 2000 | 4.6k |
| 629E | Famil Door and Roads | | | 2300 | 1.2k |
| 628A | Tennis Tournament | | | 1000 | 7.1k |
| 628B | New Skateboard | | | 1300 | 12.3k |
| 628C | Bear and String Distance | | | 1300 | 6.6k |
| 628D | Magic Numbers | | | 2200 | 8.9k |
| 628E | Zbazi in Zeydabad | | | 2300 | 1.1k |
| 628F | Bear and Fair Set | | | 2500 | 1.1k |
| 627A | XOR Equation | | | 1700 | 4.8k |
| 627B | Factory Repairs | | | 1700 | 3.5k |
| 627C | Package Delivery | | | 2200 | 1.4k |
| 627D | Preorder Test | | | 2600 | 1k |
| 627E | Orchestra | | | 3000 | 811 |
| 627F | Island Puzzle | | | 3400 | 271 |
| 626A | Robot Sequence | | | 1000 | 6.9k |
| 626B | Cards | | | 1300 | 7.1k |
| 626C | Block Towers | | | 1600 | 4.6k |
| 626D | Jerry's Protest | | | 1800 | 3.2k |
| 626E | Simple Skewness | | | 2400 | 1.7k |
| 626F | Group Projects | | | 2400 | 3.8k |
| 626G | Raffles | | | 3100 | 814 |
| 625A | Guest From the Past | | | 1700 | 5.7k |
| 625B | War of the Corporations | | | 1200 | 11.7k |
| 625C | K-special Tables | | | 1300 | 7.2k |
| 625D | Finals in arithmetic | | | 2400 | 708 |
| 625E | Frog Fights | | | 2800 | 423 |
| 624A | Save Luke | | | 800 | 11.2k |
| 624B | Making a String | | | 1100 | 8.5k |
| 623A | Graph and String | | | 1800 | 4.8k |
| 623B | Array GCD | | | 2300 | 2.4k |
| 623C | Electric Charges | | | 2900 | 584 |
| 623D | Birthday | | | 2700 | 586 |
| 623E | Transforming Sequence | | | 3300 | 715 |
| 622A | Infinite Sequence | | | 1000 | 10.3k |
| 622B | The Time | | | 900 | 11.1k |
| 622C | Not Equal on a Segment | | | 1700 | 7.6k |
| 622D | Optimal Number Permutation | | | 1900 | 3.4k |
| 622E | Ants in Leaves | | | 2200 | 2.5k |
| 622F | The Sum of the k-th Powers | | | 2600 | 5.1k |
| 621A | Wet Shark and Odd and Even | | | 900 | 22.9k |
| 621B | Wet Shark and Bishops | | | 1300 | 11.7k |
| 621C | Wet Shark and Flowers | | | 1700 | 6.4k |
| 621D | Rat Kwesh and Cheese | | | 2400 | 1.1k |
| 621E | Wet Shark and Blocks | | | 2000 | 3.4k |
| 620A | Professor GukiZ's Robot | | | 800 | 14.4k |
| 620B | Grandfather Dovlet’s calculator | | | 1000 | 10.6k |
| 620C | Pearls in a Row | | | 1500 | 8k |
| 620D | Professor GukiZ and Two Arrays | | | 2200 | 2.1k |
| 620E | New Year Tree | | | 2100 | 7.5k |
| 620F | Xors on Segments | | | 2800 | 911 |
| 618A | Slime Combining | | | 800 | 8.9k |
| 618B | Guess the Permutation | | | 1100 | 8.4k |
| 618C | Constellation | | | 1600 | 4.7k |
| 618D | Hamiltonian Spanning Tree | | | 2200 | 2.1k |
| 618E | Robot Arm | | | 2500 | 727 |
| 618F | Double Knapsack | | | 3000 | 2.1k |