A minimal spanning tree of G is a spanning tree with the minimum ____.

Which of the following statements is not valid C++ code?

A) int ptr = &num1; B) int ptr = int *num1; C) float num1 = &ptr2; D) All of the above are valid. E) All of the above are invalid.

If you accidentally create a filename that contains a nonprinting character, such as a CONTROL character, how can you remove the file?

What will be an ideal response?