Answer to Question #57104 in C++ for priyam

Question

write an user defined function ,the function should accept the 2D array[4][4] of integersand convert it to B[16]..
please explain the steps

Answer 1

Solution
We must set every row side by side. So, if we look index of array, we can see that index for first row connected by low: i=>i;
for second row: i=>4+i etc.
so, in dependence form number of row, we must add corresponding number of 4.
So, we can see, that element a[i][j] corresponding to b[i*4+j].

void convertArray(int array2D[4][4], int B[16])
{
for (int i=0;i<4;i++)
for(int j=0;j<4;j++)
B[i*4+j]=array2D[i][j];
}