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4312
Персистентная очередь
Easy
4313
Persistent stack
Very easy
4314
2D-переворот
Very easy
4317
Задача для второклассника
Medium
4340
Army of Mages
Very easy
4344
Loyd`s Problem
Very hard
4353
Happy Birthday!!!
Very easy
4354
The problem about the chest
Medium
4366
Game with palindroms
Very easy
4373
Квадратное уравнение
Very hard
4376
Оксюморон
Medium
4381
Express delivery
Very hard
4388
Meeting place can not be changed
Easy
4389
Intersection of nonconvex polygons
Very hard
4395
Морской бой
Medium
4397
Бродячий цирк
Very easy
4398
Логово Компьютерных Шаманов
Medium
4400
За кефирчиком!
Easy
4403
Указ рассудительного вождя
Easy
4404
Quite a problem
Very easy
4422
Поезда
Medium
4423
Transfer points
Very easy
4427
Китайские часы
Medium
4428
Пересечение прямоугольников
Very easy
4429
Кассы
Easy
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