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Problems

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Difficulty
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4206
Painters
Easy
4210
Broken Scales
Easy
4211
Gas stations
Very easy
4220
AAAAHH! Overbooked!
Very easy
4223
Matryoshka Dolls
4230
Library
Hard
4256
SumX
Very easy
4261
Number of inversions
Very easy
4268
Flash Mob
Very easy
4282
Valentine's Day
Easy
4288
Stepan's Task
Medium
4302
Football
4388
Meeting place can not be changed
Easy
4396
The Last Eye
Easy
4415
Arriving to LKSH
Very easy
4416
Testing System
Very easy
4417
Number
Very easy
4424
Union of segments
Very easy
4425
Further solving
Very easy
4550
Works in Crimea
Medium
4567
Sister Cities High
Easy
4642
Conveyor
Very hard
4701
Boxes
Medium
4738
Sorting
4741
Bubble Sort - 2
Very easy
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