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

Answer:

The solution code is written in C++

1. void BigInt(int n){
2.    
3.    int i, j;
4.    
5.    for(i = 1; i <= n; i++){
6.  
7.        for(j = 1; j <= i; j++){
8.            
9.            if(j < 10){
10.                
11.              cout<<j;                
12.            }
13.            else{
14.              cout<<0;
15.            }
16.          
17.        }
18.        
19.        cout<<"\n";
20.        
21.    }
22. }
24. int main()
25. {
26.    BigInt(10);
27.    
28.    return 0;
29. }

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).