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The third one is extra#5280

Татаал · Games · Greedy algorithms

Wire ornament#5281

Абдан жеңил · Geometry

Saddle points#5282

Абдан жеңил · Implementation · String suffix structures

Thaw#5283

Абдан жеңил · Implementation · Prefix Sums

And again the sum... (Easy)#5284

Абдан жеңил · Data Structures · Segment Tree

Caves and Tunnels#5285

Абдан татаал · Graphs

Spell#5286

Абдан татаал · Strings

The cyclic suffixes (Easy)#5287

Абдан жеңил · Suffix Array · String suffix structures

Common Substring (Easy)#5288

Жеңил · Strings · Sorting · Brute force

Nenokku (Easy)#5289

Абдан жеңил · Strings · Implementation

Substring (Easy)#5290

Абдан жеңил · Brute force · Strings

Present your documents!#5291

Жеңил · Binary Search · Sorting

Fourth floor#5292

Жеңил · Data Structures · Binary Search

Cartesian tree#5293

Жеңил · Binary Search · Implementation

Sums without a module#5294

Абдан жеңил · Prefix Sums · Segment Tree

Number in the bracket sequence#5295

Жеңил · Dynamic programming

Bracket sequence with 2 types of brackets#5296

Орточо · Dynamic programming

Restoration of an HTML file#5297

Жеңил · Implementation

Cow barns#5298

Татаал · Graphs

Covering with paths#5299

Жеңил · Graphs

Magic Square#5300

Орточо · Brute force

Array#5301

Абдан жеңил · Data Structures · Implementation

Cyclic Shifts#5302

Орточо · Strings

Twelves#5303

Татаал · Breadth-first Search · Depth-first Search

Permutations#5304

Орточо · Greedy algorithms

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