Time Limit: 2 Seconds Memory Limit: 65536 KB Anna, Betty, Cindy and...

Bill and Ted are taking a road trip. But the odometer in their car is br...

Problem Description 寒假的时候，ACBOY要去拜访很多朋友，恰巧他所有朋友的家都处在坐标平面的X轴上。ACBOY可以任意选择...

Time Limit:1000MSMemory Limit:10000K Total Submissions:132355Accepted:64...