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Problems
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Problems

Topics
Difficulty
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433
Guardian of Decency
Hard
434
Romero’s Dilemma
Very easy
435
Prime Path
Medium
436
Intersection
Hard
437
Ancestors
Very easy
438
XML-converter
Hard
439
Brackets
Easy
440
Number Puzzle
Easy
441
The most round number
Very easy
442
Formations
Very easy
443
ICQ
Very easy
444
Battleships
Easy
445
Excursion
Hard
446
Smooth Divisors
Easy
447
Many number
Hard
448
Chords
Hard
449
Equal Divisors 2
Hard
450
Spiral
Easy
451
base64
Very hard
452
Shelves
Medium
453
Restaurants
Hard
454
Changeling
Very hard
455
Circular route
Very hard
456
Game
Very hard
457
Similar numbers
Medium
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