樱花落舞

摘要： Description Mishka is a little polar bear. As known, little bears loves spending their free time playing dice for chocolates. Once in a wonderful sunn 阅读全文

摘要： Description The Little Elephant very much loves sums on intervals. This time he has a pair of integers l and r (l ≤ r). The Little Elephant has to fin 阅读全文

摘要： Description The Little Elephant loves sortings. He has an array a consisting of n integers. Let's number the array elements from 1 to n, then the i-th 阅读全文

摘要： Description The Little Elephant loves Ukraine very much. Most of all he loves town Rozdol (ukr. "Rozdil"). However, Rozdil is dangerous to settle, so 阅读全文

摘要： Description Sergei B., the young coach of Pokemons, has found the big house which consists of n flats ordered in a row from left to right. It is possi 阅读全文

摘要： Description Vasya has the square chessboard of size n × n and m rooks. Initially the chessboard is empty. Vasya will consequently put the rooks on the 阅读全文

摘要： Description There are n cards (n is even) in the deck. Each card has a positive integer written on it. n / 2 people will play new card game. At the be 阅读全文

摘要： Description Ari the monster always wakes up very early with the first ray of the sun and the first thing she does is feeding her squirrel. Ari draws a 阅读全文

摘要： Description Galois is one of the strongest chess players of Byteforces. He has even invented a new variant of chess, which he named «PawnChess». This 阅读全文

摘要： Description Vasya has n days of vacations! So he decided to improve his IT skills and do sport. Vasya knows the following information about each of th 阅读全文