// practice ground
| # | Title | Topics | Difficulty |
|---|---|---|---|
| 801 | Interval Cascade Analyzer |
Intervals
Sorting
|
Medium |
| 802 | Prefix Routing Engine |
Strings
Trie
|
Medium |
| 803 | Matrix Heat Diffusion |
Matrix
Simulation
|
Medium |
| 804 | Museum Exhibit Rotation Planner |
Arrays
Greedy
|
Medium |
| 805 | Glacier Melt Timeline |
BFS
Graphs
|
Medium |
| 806 | Festival Lantern Arrangement |
Simulation
Strings
|
Easy |
| 807 | Astronomical Observation Windows |
Intervals
Sorting
|
Medium |
| 808 | River Lock Navigation |
Dynamic Programming
Graphs
|
Hard |
| 809 | Orchard Harvest Balancer |
DFS
Trees
|
Medium |
| 810 | Archive Restoration Sequence |
Hashing
Strings
|
Medium |
| 811 | Railway Switch Calibration |
Graphs
Greedy
|
Hard |
| 812 | Volcano Evacuation Routes |
BFS
Graphs
|
Medium |
| 813 | Library Shelf Compression |
Simulation
Stacks
|
Easy |
| 814 | Satellite Orbit Alignment |
Geometry
Math
|
Hard |
| 815 | Ancient Script Decoder |
Strings
Trie
|
Medium |
| 816 | Harbor Dock Assignment |
Greedy
Heaps / Priority Queue
|
Medium |
| 817 | Clock Tower Synchronization |
Math
Simulation
|
Easy |
| 818 | Planet Supply Network |
Graphs
Union Find (Disjoint Set)
|
Medium |
| 819 | Coral Reef Expansion |
DFS
Matrix
|
Medium |
| 820 | Marketplace Stall Rearrangement |
Arrays
Two Pointers
|
Easy |
| 821 | Tunnel Ventilation Planner |
Binary Search
Graphs
|
Hard |
| 822 | Historic Map Stitching |
Divide and Conquer
Recursion
|
Hard |
| 823 | Rain Gauge Distribution |
Greedy
Sorting
|
Medium |
| 824 | Village Census Register |
Arrays
Hashing
|
Easy |
| 825 | Opera Seat Visibility |
Geometry
Matrix
|
Medium |
