摘要：
Sumdiv Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 22680 Accepted: 5660 Description Consider two natural numbers A and B. Let S be the 阅读全文
摘要：
Fractal Streets Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 445 Accepted: 162 Description With a growing desire for modernization in ou 阅读全文