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Problems

Prefix Sums
Difficulty
Sort by
3616
Permutations
Very easy
3617
Farm
Easy
3764
Remainders sum
Hard
3840
Halloween treats
Very easy
3842
Bitris
Very easy
3869
Meteomeasurements
Very easy
3871
Roads of Russia
Very easy
3942
Darkwing Duck
Very hard
4010
Movie collection
Very easy
4073
Its a Murder!
Very easy
4081
Frequent values - 2
Easy
4082
Interval Product
Very easy
4145
Mountains
Very hard
4206
Painters
Easy
4255
Sum on a segment
Very easy
4282
Valentine's Day
Easy
4290
Repair
Medium
4325
Tree
Hard
4339
Water Monopoly
Very hard
4368
Triangular web
Very easy
4407
Unicycle counting
4425
Further solving
Very easy
4432
Tom Sawyer and His Friends
Easy
4461
Accept in 150 seconds
4467
Kryptex
Very easy
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