Question

Write a demo main program that illustrates the work of BigInt(n) and prints the following sequence of big numbers 1, 12, 123, 1234, …, 1234567890, one below the other.

Answer 1

The solution code is written in C++

1. void BigInt(int n){
3. int i, j;
5. for(i = 1; i <= n; i++){
7. for(j = 1; j <= i; j++){
9. if(j < 10){
11. cout<<j;
12. }
13. else{
14. cout<<0;
15. }
17. }
19. cout<<"\\";
21. }
22. }
24. int main()
25. {
26. BigInt(10);
28. return 0;
29. }

Step-by-step explanation:

Firstly, create a function BigInt that takes one input number, n.

Next, create a double layer for-loop (Line 5-21). The outer loop is to print one big number per iteration and the inner layer is keep printing the accumulated individual digit for a big number. To ensure the big number is printed one below the other, we print a new line in outer loop (Line 19).

In main program, we call the function to print the big number (Line 26).