场景: 使用 Oracle.DataAccess.dll 访问数据库时,OracleDataAdapter 执行失败. 异常: System.AccessViolationException was unhandled HResult=-2147467261 Message=Attempted to read or write protected memory. This is often an indication that other memory is corrupt. Source
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=5023 解题报告:一面墙长度为n,有N个单元,每个单元编号从1到n,墙的初始的颜色是2,一共有30种颜色,有两种操作: P a b c 把区间a到b涂成c颜色 Q a b 查询区间a到b的颜色 线段树区间更新,每个节点保存的信息有,存储颜色的c,30种颜色可以压缩到一个int型里面存储,然后还有一个tot,表示这个区间一共有多少种颜色. 对于P操作,依次往下寻找,找要更新的区间,找到要更新的区间之前
A Corrupt Mayor's Performance Art Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 100000/100000 K (Java/Others) Total Submission(s): 255 Accepted Submission(s): 114 Problem Description Corrupt governors always find ways to get dirty money.