For each line of input produce one line of output. This line contains three floating-point numbers F1, F2, F3. Here F1 is the expected cost when they travel along a path, F2 is the expected cost when it is guaranteed that they travel along a simple path and F3 is the expected cost when it is guaranteed that they travel along a simple cycle. All the floatingpoint numbers should be rounded up to four digits after the decimal point. You must assume that their travelling cost is not greater than (L). Travelling cost is always expressed in universal joule.

谁能告诉我F1的含义到底是什么.travel along a path 究竟是什么意思?

• 就是求三种走法的各自的平均吧 (0) IamI 2005-08-07 00:46:58