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Problems

Brute force
Difficulty
Sort by
8548
Divisible Sum Pairs
8554
Shopping
Easy
8560
Clubs
Easy
8581
Products
Medium
8585
One, two, not three
Easy
8622
Divisibility by digits
Very easy
8641
Three digit Armstrong numbers
8642
Four digit Armstrong numbers
8644
Squarow
Easy
8648
Bishops on Black
Medium
8650
Crystal (Unknown)
Medium
8651
Bracelets (Bangles)
Easy
8661
Credit
Very easy
8671
Representable with sum of squares
Very easy
8676
Express As The Sum
Easy
8699
Find a sequence
Very easy
8706
Concatenated Numbers
Hard
8715
Flexible Segments
Very easy
8720
Magic
8765
Find the maximum (of the function)
Very easy
8769
Nuts
Hard
8770
Class
Very easy
8774
Elections
Very easy
8775
Rules
Medium
8776
Prepare a speech
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