31 Consider the following code segment and answer the questions that follow int x 10 int y - 12 int *px -6X; int *py - sy; int' pnew int, int temp 311 Wnte a short code segment to swap the values pointed to by px and py without referring to variables x and y 312 Give a C++ statement to release the memory occupied by p 313 Without taking your answer in 3 1 1 into consideration, what does the following line of code imply? 32 px - py: Wnite statements to declare and create a dynamic array classlist with string elements to keep the names of students Assume class 1st will have numberStudents elements