NanoApe Loves Sequence 题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=5805 Description NanoApe, the Retired Dog, has returned back to prepare for the National Higher Education Entrance Examination! In math class, NanoApe picked up sequences once aga…
异或密码 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Problem Description 晨晨在纸上写了一个长度为N的非负整数序列{ai}.对于这个序列的一个连续子序列{al,al+1,-,ar}晨晨可以求出其中所有数异或的结果 alxoral+1xor...xorar其 中xor表示位异或运算,对应C.C++. Java等语言中的^运算.小璐提出了M个询问,每个询问用…
Relative atomic mass Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 66 Accepted Submission(s): 59 Problem Description Relative atomic mass is a dimensionless physical quantity, the ratio of…
Basic Data Structure Time Limit: 7000/3500 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 872 Accepted Submission(s): 236 Problem Description Mr. Frog learned a basic data structure recently, which is called stac…
Minimum's Revenge Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 283 Accepted Submission(s): 219 Problem Description There is a graph of n vertices which are indexed from 1 to n. For any pai…
