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Problems

Brute force
Difficulty
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4025
Digital Clock
Easy
4029
Hip To Be Square
Easy
4032
Key Insight
4044
N Queens
Medium
4062
Herbarium
Medium
4067
Electronic Hunting
Very hard
4079
Permutation
Very easy
4086
Triangle
Very hard
4098
Prime Substring
4101
Three digit numbers
4106
Subsets generation
Very easy
4122
Periodic, My Dear Watson
Easy
4136
The Dragon and the knights
4175
Again About Prime Numbers
Very easy
4182
Chaotic permutation
Easy
4191
Vampire Numbers
Easy
4193
Yalynky
Easy
4203
Box of chocolate
Medium
4204
The Millionaire's Will
Easy
4207
Bulls and cows
Hard
4210
Broken Scales
Easy
4236
Cloudlet
Very hard
4242
Puzzle
Very easy
4267
Babs` Box Boutique
Very easy
4269
Hexagon Perplexagon
Very easy
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