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9870
Daily Division
9876
Jurassic Jigsaw
9878
A Prize No One Can Win
Very easy
9879
Birthday Boy
Medium
9880
Cardboard Container
Very easy
9882
Entirely Unsorted Sequences
9883
Financial Planning
9885
Harry the Hamster
Medium
9889
Product of differences
Easy
9890
Balls and boxes
Very easy
9891
Odd sum
Very easy
9892
C0n + ... + Cnn
Very easy
9893
Matrix: sum of indexes
Medium
9894
Sum of rows
Very easy
9895
Arithmetic progressions
Very easy
9896
Average price
Very easy
9897
Set of strings
Very easy
9898
LinkedList Sum
9899
LinkedList Length
9900
Number of natural
9901
The number of natural 2
9902
Number of even numbers
Very easy
9903
Number of odd numbers
Very easy
9904
The number of odd ones is 2
9905
The number of evens #2
Very easy
1
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366