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Problems

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Difficulty
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8245
Short cube
Hard
8246
Comparison of Sequences
Hard
8247
Building a Fenwick Tree
Very easy
8248
From the prefix function to the z-function
Very easy
8249
Suffix passport control
Hard
8250
Power
Medium
8251
Concatenation of Three Palindromes
Hard
8252
Time-Turner
Easy
8253
Researchers
Medium
8254
Hotel rooms
8255
n-digit numbers
Very easy
8256
Copy the array
Hard
8257
Roads
Very easy
8258
Walk
8259
Patterns
8260
An interesting tour
Easy
8261
Jumps with a turn
8262
Counting in formation
Medium
8263
Different numbers
Hard
8264
Drawing
Easy
8265
The Last Battle
Easy
8266
Schedule
Easy
8267
Pizza
8268
Retweet twinter
Medium
8269
Fragmentation
Very easy
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