Probleme
Guardian of Decency#433
Dificil · Graphs
Romero’s Dilemma#434
Foarte ușor · Graphs
Prime Path#435
Mediu · Graphs · Breadth-first Search
Intersection#436
Dificil · Geometry
Ancestors#437
Foarte ușor · Disjoint set union
XML-converter#438
Dificil · Implementation
Brackets#439
Ușor · Dynamic programming · Math
Number Puzzle#440
Ușor · Brute force · Strings
The most round number#441
Foarte ușor · Implementation
Formations#442
Foarte ușor · Number theory
ICQ#443
Foarte ușor · Sorting
Battleships#444
Ușor · Implementation
Excursion#445
Dificil · Brute force · Math
Smooth Divisors#446
Ușor · Math
Large number#447
Dificil · Brute force · Implementation
Chords#448
Dificil · Combinatorics
Equal Divisors 2#449
Dificil · Math
Spiral#450
Ușor · Brute force · Implementation
base64#451
Foarte dificil · Implementation
Shelves#452
Mediu · Sorting
Restaurants#453
Dificil · Greedy algorithms · Implementation
Changeling#454
Foarte dificil · Brute force · Implementation
Circular route#455
Foarte dificil · Graphs
Game#456
Foarte dificil · Probabilities
Close numbers#457
Mediu · Data Structures · Binary Search