摘要： Painter's Problem Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 4839 Accepted: 2350 Description There is a square wall which is made of n 阅读全文

摘要： EXTENDED LIGHTS OUT Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 7459 Accepted: 4860 Description In an extended version of the game Ligh 阅读全文

摘要： 开关问题 Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 6294 Accepted: 2393 Description 有 N个相同的开关，每个开关都与某些开关有着联系，每当你打开或者关闭某个开关的时候，其他的与此开关相关联的开 阅读全文

摘要： B. Jzzhu and Sequences time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Jzzhu has invented 阅读全文