甜晨流年

time limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputA word or a sentence in some language is called a pangram if all the characters of the alphabet of...

time limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputNew Year is coming in Line World! In this world, there are n cells numbered by integers from 1 to ...

time limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputSomeday, Drazil wanted to go on date with Varda. Drazil and Varda live on Cartesian plane. Drazil's...

time limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputSome natural number was written on the board. Its sum of digits was not less than k. But you were ...

time limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputThere are two popular keyboard layouts in Berland, they differ only in letters positions. All the o...

time limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputThere are n Imperial stormtroopers on the field. The battle field is a plane with Cartesian coordin...

time limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputDrazil has many friends. Some of them are happy and some of them are unhappy. Drazil wants to make...