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9614
Coin change problem
Easy
9615
Frobenius coin problem
Easy
9616
Anti-palindromic strings
Very easy
9617
Number of positive
Very easy
9618
Sum of negative
Very easy
9620
Nautilus
Easy
9621
Alpine valley
Medium
9622
Tom's Kitchen
Hard
9625
toUpperCase
Very easy
9626
startsWith endsWith
Very easy
9627
a^b^c
Easy
9628
Frog
Medium
9629
k-th ancestor
Easy
9630
Bishops
Medium
9631
Competition of sequences
Very easy
9632
The best team
Very easy
9634
Go to the finals
Very easy
9635
Transport system
Medium
9636
Dino and colors
Very easy
9637
Dino and snow buildings
Very easy
9638
Easy problem for Dino
Very easy
9639
Big array of Dino
Medium
9640
Dino and fetters
Easy
9641
Cold Days in Dinotopia
Hard
9642
Good pairs
Medium
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