摘要：
【题目描述】 An addition chain for n is an integer sequence with the following four properties: a0 = 1 am = n a0 include using namespace std; int n,deep; in 阅读全文
摘要：
【题目描述】 George took sticks of the same length and cut them randomly until all parts became at most 50 units long. Now he wants to return sticks to the 阅读全文