Pointers and arrays . Write a program as follows and run it and print the outputs. . Instantiate some variables and arrays and pointers as follows. Q3 int mainO int n 3; int i 3; int all 15, 6, 7); int *p1 = NULL ; // see below return o . Write the following statement p1-a; 1. Compile the program. It should compile successfully. 2. A pointer to int can point to an array of type int. 3. In C++, an array is implemented as a pointer to a block of memory . Run a loop and print the values of a[i] and p1[i]. for (i 0; i