摘要：
Ivan and Powers of Two Time Limit:1000MS Memory Limit:262144KB 64bit IO Format:%I64d & %I64u Submit Status Practice CodeForces 404C Ivan and Powers of 阅读全文
摘要：
Ryouko's Memory Note Time Limit:1000MS Memory Limit:262144KB 64bit IO Format:%I64d & %I64u Submit Status Practice CodeForces 433C Ryouko's Memory Note 阅读全文