| ID | Problem Show tags Hide tags | AC / Tried | Difficulty | |
|---|---|---|---|---|
| 191 | P1613E Crazy Robot | 0 / 0 | (None) | |
| 180 | P1615D X(or)-mas Tree | 0 / 0 | (None) | |
| 179 | P1615E Purple Crayon | 0 / 0 | (None) | |
| 169 | P1616G Just Add an Edge | 0 / 0 | (None) | |
| 162 | P1617E Christmas Chocolates | 0 / 0 | (None) | |
| 156 | P1618F Reverse | 0 / 0 | (None) | |
| 148 | P1619G Unusual Minesweeper | 0 / 0 | (None) | |
| 137 | P1621C Hidden Permutations | 0 / 0 | (None) | |
| 132 | P1621H Trains and Airplanes | 0 / 0 | (None) | |
| 123 | P1623B Game on Ranges | 0 / 0 | (None) | |
| 120 | P1623E Middle Duplication | 0 / 0 | (None) | |
| 113 | P1624G MinOr Tree | 0 / 0 | (None) | |
| 108 | P1625E1 Cats on the Upgrade (easy version) | 0 / 0 | (None) | |
| 107 | P1625E2 Cats on the Upgrade (hard version) | 0 / 0 | (None) | |
| 102 | P1626E Black and White Tree | 0 / 0 | (None) | |
| 98 | P1627C Not Assigning | 0 / 0 | (None) | |
| 73 | P1632E1 Distance Tree (easy version) | 0 / 0 | (None) | |
| 72 | P1632E2 Distance Tree (hard version) | 0 / 0 | (None) | |
| 67 | P1633E Spanning Tree Queries | 0 / 0 | (None) | |
| 61 | P1634E Fair Share | 0 / 0 | (None) |
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