摘要：
Description Find the biggest integer \(n (1\leqslant n\leqslant N)\) and an integer \(x\) to make them satisfy Input The input consists of several tes 阅读全文
摘要：
Description Tina Town is a friendly place. People there care about each other. Tina has a ball called zball. Zball is magic. It grows larger every day 阅读全文
摘要：
Description iSea is tired of writing the story of Harry Potter, so, lucky you, solving the following problem is enough. Input The first line contains 阅读全文
摘要：
Description There is a \(n×m\) board, a chess want to go to the position \((n,m)\) from the position \((1,1)\). The chess is able to go to position \( 阅读全文
摘要：
Description The so-called best problem solver can easily solve this problem, with his/her childhood sweetheart. It is known that \(y=(5+2\sqrt{6})^{1+ 阅读全文
摘要：
Description Math is important!! Many students failed in 2+2’s mathematical test, so let's AC this problem to mourn for our lost youth.. Look this samp 阅读全文
摘要：
Description Chiaki is interested in an infinite sequence \(a_1,a_2,a_3,...\) which is defined as follows: \(a_n=\begin{cases} 1 &,n=1,2\\a_{n−a_{n−1}} 阅读全文
摘要：
Description There is a complete graph containing \(n\) vertices, the weight of the \(i\)-th vertex is \(w_i\). The length of edge between vertex \(i\) 阅读全文
摘要：
Description There is a nonnegative integer sequence \(a_{1...n}\) of length \(n\). HazelFan wants to do a type of transformation called prefix-XOR, wh 阅读全文