摘要： Problem Description：John has several lines. The lines are covered on the X axis. Let A is a point which is covered by the most lines. John wants to kn... 阅读全文

摘要： Problem Description：Here has an function:f(x)=|a∗x3+b∗x2+c∗x+d|(L≤x≤R)Please figure out the maximum result of f(x).Input：Multiple test cases(less than... 阅读全文