Προβλήματα

The third one is extra#5280

Δύσκολο · Games · Greedy algorithms

Wire ornament#5281

Πολύ εύκολο · Geometry

Saddle points#5282

Πολύ εύκολο · Implementation · String suffix structures

Thaw#5283

Πολύ εύκολο · Implementation · Prefix Sums

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

Πολύ εύκολο · Data Structures · Segment Tree

Caves and Tunnels#5285

Πολύ δύσκολο · Graphs

Spell#5286

Πολύ δύσκολο · Strings

The cyclic suffixes (Easy)#5287

Πολύ εύκολο · Suffix Array · String suffix structures

Common Substring (Easy)#5288

Εύκολο · Strings · Sorting · Brute force

Nenokku (Easy)#5289

Πολύ εύκολο · Strings · Implementation

Substring (Easy)#5290

Πολύ εύκολο · Brute force · Strings

Present your documents!#5291

Εύκολο · Binary Search · Sorting

Fourth floor#5292

Εύκολο · Data Structures · Binary Search

Cartesian tree#5293

Εύκολο · Binary Search · Implementation

Sums without a module#5294

Πολύ εύκολο · Prefix Sums · Segment Tree

Number in the bracket sequence#5295

Εύκολο · Dynamic programming

Bracket sequence with 2 types of brackets#5296

Μέτριο · Dynamic programming

Restoration of an HTML file#5297

Εύκολο · Implementation

Cow barns#5298

Δύσκολο · Graphs

Covering with paths#5299

Εύκολο · Graphs

Magic Square#5300

Μέτριο · Brute force

Array#5301

Πολύ εύκολο · Data Structures · Implementation

Cyclic Shifts#5302

Μέτριο · Strings

Twelves#5303

Δύσκολο · Breadth-first Search · Depth-first Search

Permutations#5304

Μέτριο · Greedy algorithms

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