Consider the following C program.

#include < stdio.h >
int main () {
    int a [4] [5] = {{1, 2, 3, 4, 5},
                           {6, 7, 8, 9, 10},
                           {11, 12, 13, 14, 15},
                           {16, 17, 18, 19, 20}};
    printf (“%d\n”, *(*(a+**a+2) +3));
    return (0);
}

The output of the program is _______.

A program P reads in 500 integers in the range [0, 100] representing the cores of 500 students. It then print the frequency of each score above 50. What would be the best way for P to store the frequencies?

A single array A[1..MAXSIZE] is used to implement two stacks, The two stacks grow from opposite ends of the array. Variables top1 and top2 (top1 < top2) point to the location of the topmost element in each of the stacks, If the space is to be used efficiently, the condition for "stack full" is

An n $$\times$$ n array v is defined as follows V [i, j] = i - j for all i, j, $$1 \le i \le n,\,1 \le j \le n$$ The sum of the elements of the array v is