i need help describing this program

[cstrickd]

#include
using namespace std;


int foo [] = {16, 2, 77, 40, 12071};
int n, result=0;

void idkLol()
{
// an array with 5 rows and 2 columns.
int a[5][2] = { {0,0}, {1,2}, {2,4}, {3,6},{4,8}};

// output each array element's value
for ( int i = 0; i < 5; i++ )
for ( int j = 0; j < 2; j++ )
{
cout << "a[" << i << "][" << j << "]: ";
cout << a[i][j]<< endl;
}


}

int main ()
{
for ( n=0 ; n<5 ; ++n )
{
result += foo[n];
}
cout << result;
return 0;
}