time limit per test3 seconds memory limit per test256 megabytes inputstandard input outputstandard output Anton is growing a tree in his garden. In case you forgot, the tree is a connected acyclic undirected graph. There are n vertices in the tree, e…

题目链接 可以发现 十进制4 对应 二进制100 十进制16 对应 二进制10000 十进制64 对应 二进制1000000 可以发现每多两个零,4的次幂就增加1. 用string读入题目给定的二进制数字,求出其长len,当len为奇数时,第一位为1,后面的位数如果都为0,则输出len,如果有一个不为0,则输出len+1: 当len为偶数时,则输出len.(之所以这样输出是因为题目给定4的次幂是从0开始的) #include<iostream> #include<string> #…

time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output Kevin Sun has just finished competing in Codeforces Round #334! The round was 120 minutes long and featured five problems with maximum point valu…

time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Generous sponsors of the olympiad in which Chloe and Vladik took part allowed all the participants to choose a prize for them on their own. Chri…

time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Ari the monster is not an ordinary monster. She is the hidden identity of Super M, the Byteforces' superhero. Byteforces is a country that consi…

time limit per test3 seconds memory limit per test256 megabytes inputstandard input outputstandard output Bogdan has a birthday today and mom gave him a tree consisting of n vertecies. For every edge of the tree i, some number xi was written on it. I…

time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Spongebob is already tired trying to reason his weird actions and calculations, so he simply asked you to find all pairs of n and m, such that t…

time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Today on a lecture about strings Gerald learned a new definition of string equivalency. Two strings a and b of equal length are called equivalen…

time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Every Codeforces user has rating, described with one integer, possibly negative or zero. Users are divided into two divisions. The first divisio…

time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Mr. Funt now lives in a country with a very specific tax laws. The total income of mr. Funt during this year is equal to n (n ≥ 2) burles and th…