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摘要： B. Finding Team MemberThere is a programing contest named SnakeUp, 2n people want to compete for it. In order to attend this contest, people need to f... 阅读全文

摘要： A. Kefa and First StepsKefa decided to make some money doing business on the Internet for exactly n days. He knows that on the i-th day (1 ≤ i ≤ n) he... 阅读全文

摘要： B. Kefa and CompanyKefa wants to celebrate his first big salary by going to restaurant. However, he needs company.Kefa has n friends, each friend will... 阅读全文

摘要： C. Kefa and ParkKefa decided to celebrate his first big salary by going to the restaurant.He lives by an unusual park. The park is a rooted tree consi... 阅读全文

摘要： B. Anton and LinesThe teacher gave Anton a large geometry homework, but he didn't do it (as usual) as he participated in a regular round on Codeforces... 阅读全文

摘要： CatenymsDescriptionA catenym is a pair of words separated by a period such that the last letter of the first word is the same as the last letter of th... 阅读全文

摘要： 找球号(一）描述在某一国度里流行着一种游戏。游戏规则为：在一堆球中，每个球上都有一个整数编号i(0 2 #include 3 #include 4 using namespace std; 5 6 int main() 7 { 8 int m,n; 9 setS;10 sc... 阅读全文

摘要： 小明求素数积描述小明最近遇到了一个素数题，是给你一个正整数N（2= 2 #include 3 #include 4 #include 5 using namespace std; 6 7 const int mod=1000000; 8 9 int p[1005];10 int pro[1005... 阅读全文

摘要： 房间安排描述2010年上海世界博览会(Expo2010),是第41届世界博览会。于2010年5月1日至10月31日期间，在中国上海市举行。本次世博会也是由中国举办的首届世界博览会。上海世博会以“城市，让生活更美好”(Better City,Better Life)为主题，将充分探索21世纪城市生活。... 阅读全文

摘要： 最少乘法次数描述给你一个非零整数，让你求这个数的n次方，每次相乘的结果可以在后面使用，求至少需要多少次乘。如24：2*2=22（第一次乘），22*22=24（第二次乘），所以最少共2次；输入第一行m表示有m(1 2 using namespace std; 3 4 int main() 5 { 6... 阅读全文