| 1659F | Tree and Permutation Game | | | 3000 | 255 |
| 1657F | Words on Tree | | | 2600 | 854 |
| 1656E | Equal Tree Sums | | | 2200 | 3.9k |
| 1654D | Potion Brewing Class | | | 2100 | 3.1k |
| 1654G | Snowy Mountain | | | 2900 | 474 |
| 1648E | Air Reform | | | 3200 | 601 |
| 1646D | Weight the Tree | | | 2000 | 4.5k |
| 1637F | Towers | | | 2500 | 2.2k |
| 1633E | Spanning Tree Queries | | | 2400 | 1.8k |
| 1632E1 | Distance Tree (easy version) | | | 2400 | 1.4k |
| 1632E2 | Distance Tree (hard version) | | | 2700 | 1.3k |
| 1627C | Not Assigning | | | 1400 | 16.4k |
| 1626E | Black and White Tree | | | 2400 | 1.9k |
| 1625E1 | Cats on the Upgrade (easy version) | | | 2500 | 1.2k |
| 1625E2 | Cats on the Upgrade (hard version) | | | 2800 | 705 |
| 1623E | Middle Duplication | | | 2500 | 1.3k |
| 1621H | Trains and Airplanes | | | 3500 | 267 |
| 1617E | Christmas Chocolates | | | 2700 | 1.1k |
| 1615D | X(or)-mas Tree | | | 2200 | 2.2k |
| 1615E | Purple Crayon | | | 2400 | 1.8k |
| 1611E1 | Escape The Maze (easy version) | | | 1700 | 8.5k |
| 1611E2 | Escape The Maze (hard version) | | | 1900 | 4.4k |
| 1610H | Squid Game | | | 3100 | 731 |
| 1608G | Alphabetic Tree | | | 3500 | 300 |
| 1605D | Treelabeling | | | 2100 | 3.3k |
| 1593E | Gardener and Tree | | | 1600 | 15.1k |
| 1592C | Bakry and Partitioning | | | 1700 | 9.3k |
| 1592D | Hemose in ICPC ? | | | 2300 | 2.7k |
| 1585E | Frequency Queries | | | 2400 | 1.2k |
| 1583E | Moment of Bloom | | | 2200 | 2.5k |
| 1566E | Buds Re-hanging | | | 2000 | 4.5k |
| 1559D2 | Mocha and Diana (Hard Version) | | | 2500 | 3.2k |
| 1551F | Equidistant Vertices | | | 2200 | 2.2k |
| 1547G | How Many Paths? | | | 2100 | 3.7k |
| 1535D | Playoff Tournament | | | 1800 | 8.6k |
| 1528A | Parsa's Humongous Tree | | | 1600 | 19.8k |
| 1528C | Trees of Tranquillity | | | 2300 | 3k |
| 1527D | MEX Tree | | | 2400 | 2.3k |
| 1521D | Nastia Plays with a Tree | | | 2500 | 2.4k |
| 1519E | Off by One | | | 2700 | 943 |
| 1515F | Phoenix and Earthquake | | | 2600 | 2.2k |
| 1508C | Complete the MST | | | 2500 | 1.8k |
| 1508E | Tree Calendar | | | 3100 | 453 |
| 1499F | Diameter Cuts | | | 2400 | 1.7k |
| 1498F | Christmas Game | | | 2500 | 1.1k |
| 1495D | BFS Trees | | | 2600 | 1.6k |
| 1494D | Dogeforces | | | 2300 | 2.9k |
| 1491E | Fib-tree | | | 2400 | 2.4k |
| 1486F | Pairs of Paths | | | 2600 | 875 |
| 1485E | Move and Swap | | | 2500 | 1.6k |
| 1467E | Distinctive Roots in a Tree | | | 2500 | 1.8k |
| 1463E | Plan of Lectures | | | 2400 | 1.8k |
| 1454E | Number of Simple Paths | | | 2000 | 6.8k |
| 1453E | Dog Snacks | | | 2300 | 2.3k |
| 1452G | Game On Tree | | | 2700 | 579 |
| 1444E | Finding the Vertex | | | 3500 | 171 |
| 1442E | Black, White and Grey Tree | | | 3000 | 805 |
| 1436D | Bandit in a City | | | 1900 | 6.6k |
| 1406C | Link Cut Centroids | | | 1700 | 12k |
| 1404B | Tree Tag | | | 1900 | 8.3k |
| 1403B | Spring cleaning | | | 2300 | 437 |
| 1402C | Star Trek | | | 2600 | 271 |
| 1401D | Maximum Distributed Tree | | | 1800 | 10.7k |
| 1399E1 | Weights Division (easy version) | | | 2000 | 6.4k |
| 1399E2 | Weights Division (hard version) | | | 2200 | 2.6k |
| 1396E | Distance Matching | | | 3200 | 441 |
| 1391E | Pairs of Pairs | | | 2600 | 2.1k |
| 1389G | Directing Edges | | | 2800 | 540 |
| 1388C | Uncle Bogdan and Country Happiness | | | 1800 | 10.5k |
| 1388D | Captain Flint and Treasure | | | 2000 | 7k |
| 1387B2 | Village (Maximum) | | | 2500 | 1.4k |
| 1381D | The Majestic Brown Tree Snake | | | 3000 | 832 |
| 1375G | Tree Modification | | | 2800 | 2.3k |
| 1370F1 | The Hidden Pair (Easy Version) | | | 2400 | 1.8k |
| 1370F2 | The Hidden Pair (Hard Version) | | | 2700 | 1.7k |
| 1364D | Ehab's Last Corollary | | | 2100 | 5.1k |
| 1363E | Tree Shuffling | | | 2000 | 7.6k |
| 1361E | James and the Chase | | | 3000 | 1k |
| 1340D | Nastya and Time Machine | | | 2600 | 1.1k |
| 1338B | Edge Weight Assignment | | | 1800 | 9.7k |
| 1338D | Nested Rubber Bands | | | 2700 | 1.2k |
| 1336A | Linova and Kingdom | | | 1600 | 25.5k |
| 1332F | Independent Set | | | 2500 | 1.2k |
| 1328E | Tree Queries | | | 1900 | 12.3k |
| 1325C | Ehab and Path-etic MEXs | | | 1500 | 17.9k |
| 1324F | Maximum White Subtree | | | 1800 | 13.6k |
| 1320E | Treeland and Viruses | | | 3000 | 1.1k |
| 1307F | Cow and Vacation | | | 3300 | 690 |
| 1305D | Kuroni and the Celebration | | | 1900 | 5.4k |
| 1304E | 1-Trees and Queries | | | 2000 | 6k |
| 1299D | Around the World | | | 3000 | 652 |
| 1297E | Modernization of Treeland | | | unrated | 219 |
| 1296F | Berland Beauty | | | 2100 | 3.1k |
| 1294F | Three Paths on a Tree | | | 2000 | 7.2k |
| 1292C | Xenon's Attack on the Gangs | | | 2300 | 2.4k |
| 1286B | Numbers on Tree | | | 1800 | 5.7k |
| 1285D | Dr. Evil Underscores | | | 1900 | 8.7k |
| 1280C | Jeremy Bearimy | | | 2000 | 3.1k |
| 1278E | Tests for problem D | | | 2200 | 2.1k |
| 1263F | Economic Difficulties | | | 2400 | 982 |