qq_40688707的博客

You are given a positive integer n, please count how many positive integers k satisfy kk≤nkk≤n. InputThere are no more than 50 test cases. Each case only contains a positivse integer n in a line. ...

Nike likes playing cards and makes a problem of it. Now give you n integers, ai(1≤i≤n)ai(1≤i≤n) We define two identical numbers (eg: 2,22,2) a Duizi, and three consecutive positive integers (eg: 2,3,4...