| 1 | Add One | dp, matrices | 12207 | Approved |
| 2 | Pipes | dp, implementation | 11847 | Approved |
| 3 | Sleeping Schedule | dp, implementation | 11653 | Approved |
| 4 | Little Dima and Equation | brute force, implementation, math, number theory | 11347 | Approved |
| 5 | Gardener and Tree | brute force, data structures, dfs and similar, greedy, implementation, trees | 10793 | Approved |
| 6 | RPG Protagonist | brute force, greedy, math | 10666 | Approved |
| 7 | Palindrome Basis | brute force, dp, math, number theory | 10595 | Approved |
| 8 | Pull Your Luck | brute force, greedy, math, number theory | 10526 | Approved |
| 9 | Three Blocks Palindrome (easy version) | binary search, brute force, data structures, dp, two pointers | 10124 | Approved |
| 10 | Guess the K-th Zero (Easy version) | binary search, interactive | 10113 | Approved |
| 11 | Range Update Point Query | binary search, brute force, data structures | 10075 | Approved |
| 12 | Fault-tolerant Network | brute force, data structures, implementation | 10037 | Approved |
| 13 | Tenzing and Balls | dp | 9859 | Approved |
| 14 | Tenzing and Balls | dp | 9840 | Approved |
| 15 | Data Structures Fan | binary search, bitmasks, data structures, dp | 9765 | Approved |
| 16 | Data Structures Fan | binary search, bitmasks, data structures, dp | 9762 | Approved |
| 17 | Cover it! | dfs and similar, dsu, graphs, shortest paths, trees | 9702 | Approved |
| 18 | Tracking Segments | binary search, brute force, data structures, two pointers | 9495 | Approved |
| 19 | To Become Max | binary search, brute force, data structures, dp | 9469 | Approved |
| 20 | To Become Max | binary search, brute force, data structures, dp | 9466 | Approved |
| 21 | The Walkway | brute force, dp, greedy, math, number theory | 9462 | Approved |
| 22 | The Walkaway | brute force, dp, greedy, math, number theory | 9462 | Approved |
| 23 | Sending a Sequence Over the Network | dp | 9346 | Approved |
| 24 | Road Optimization | dp | 9263 | Approved |
| 25 | Pride | brute force, dp, greedy, math, number theory | 9180 | Approved |
