摘要:
Problem DescriptionThere are many people's name and birth in a list.Your task is to print the name from young to old.(There is no pair of two has the ... 阅读全文
摘要:
Problem DescriptionMZL loves xor very much.Now he gets an array A.The length of A is n.He wants to know the xor of all (Ai+Aj)(1≤i,j≤n) The xor of an ... 阅读全文