In C++

9. Rewrite the following code segment and two different ways, first using a while loop and then a do...while loop. Note that both must the same output as the following code segment:

int limit = 4; int first = 5; int j; for(j = 1; j <= limit; j++) {

cout << first * j << endl;

first = first + (j - 1);

}

cout << endl;

10. To learn how nested for loops work, do a walk-through of the following program segments and in each case determine the exact output.

Case one:

int i, j;

for (i = 1; i <= 5; i++)

{

for (j = (i + 1); j <= 5; j++)

cout << setw(5) << j;

cout << endl;

}

Output:

Case two:

int i, j;

for (i = 1; i <= 5; i++)

{

for (j = 1; j <= i; j++)

cout << setw(3) << j;

cout << endl;

}

Output:

Case three:

const int M = 5;

const int N = 5;

int i, j;

for (i = 1; i <= M; i++)

{

for (j = 1; j <= N; j++)

cout << setw(3) << M * (i - 1) + j;

cout << endl;

}

Output:

Case four:

int i, j;

for (i = 1; i <= 5; i++)

{

for (j = 1; j <= (5 - i); j++)

cout << " ";

for (j = 1; j <= i; j++)

cout << setw(1) << j;

for (j = (i - 1); j >= 1; j--)

cout << setw(1) << j;

cout << endl;

}

Output: