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Given a positive integer N, you should output the most right digit of N^N.InputThe input contains several test cases. The first line of the input is a single integer T which is the number of test ca...

In this problem you are to calculate the sum of all integers from 1 to n, but you should take all powers of two with minus in the sum.For example, for n = 4 the sum is equal to  - 1 - 2 + 3 - 4 =  - ...

You are given a positive integer n, please count how many positive integers k satisfy k^k≤n.InputThere are no more than 50 test cases.Each case only contains a positivse integer n in a line.1≤n≤10...

题目链接：http://whu2019.contest.codeforces.com/group/YyBKO8xFiH/contest/102167/problem/DD. Dandeliontime limit per test1.0 smemory limit per test256 MBinputstandard inputoutputstandard o...

链接：https://ac.nowcoder.com/acm/contest/548/B来源：牛客网时间限制：C/C++ 1秒，其他语言2秒空间限制：C/C++ 262144K，其他语言524288K64bit IO Format: %lld题目描述立华奏在学习初中数学的时候遇到了这样一道大水题：“设箱子内有 n 个球，其中给 m 个球打上标记，设一次摸球摸到每一个球的概...