Bob John questions

• Formatting output with 'printf' in Perl
• What is the closest value to 1/3 that can be achieved using IEEE 754 32-bit floating point format?
• Finding factors of a number. Not getting accurate results
• Calculating the number of inversions (conceptually?)
• How can I use STL to create a max and min heap for data points?
• Can someone explain what the at-most-once invariant and Existence, Ownership, and Conservation rules are?
• How do you find the shortest path quickly in a breadth first search?
• How can I understand linked lists?
• Intuitively explaining pointers and their significance?
• Can someone explain the following load and store instructions as part of the ARM ISA?

Bob John answers