摘要：
Biker's Trip OdometerTime Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 2634Accepted Submission(s): 1782Problem DescriptionMost bicycle speedometers work by using a Hall Effect sensor fastened to the front fork of the bicycle. A magnet is attached 阅读全文
