新月

Alice and Bob love playing one-dimensional battle ships. They play on the field in the form of a line consisting of n square cells (that is, on a 1 × n table).At the beginning of the game Alice

time limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputDaniel has a string s, consisting of lowercase English letters a

Problem DescriptionPrincess Alisha invites her friends to come to her birthday party. Each of her friends will bring a gift of some value v, and all of them will come at a different time. Becaus

Long long ago there is a strong tribe living on the earth. They always have wars and eonquer others.One day, there is another tribe become their target. The strong tribe has decide to terminate them!!

Alice is bored out of her mind by her math classes. She craves for something much more exciting. That is why she invented a new type of numbers, the profacts. Alice calls a positive integer number a p

DescriptionMirko is hungry as a bear, scratch that, programmer and has stumbled upon a local restaurant. The restaurant offers N meals and has an interesting pricing policy: each meal i has two