C++ Exercises: Print the first N numbers for a specific base

Last update on April 07 2025 12:59:20 (UTC/GMT +8 hours)

68. First N Numbers for a Specific Base

Write a program that will print the first N numbers for a specific base.

Sample Solution:-

C++ Code :

#include <iostream> // Include input/output stream library
using namespace std; // Use the standard namespace

int main() // Main function where the execution of the program starts
{
    int trm, bs, r, q, i, num; // Declare integer variables for terms, base, remainders, quotient, iteration, and number

    // Display information about converting numbers to different bases
    cout << "\n\n Print the first N numbers for a specific base:\n";
    cout << " The number 11 in base 10 = 1*(10^1)+1*(10^0)=11" << endl;
    cout << " Similarly the number 11 in base 7 = 1*(7^1)+1*(7^0)=8" << endl;
    cout << "----------------------------------------------------------------\n";

    cout << " Input the number of term: ";
    cin >> trm; // Input the number of terms to display
    cout << " Input the base: ";
    cin >> bs; // Input the base for conversion

    cout << " The numbers in base " << bs << " are: " << endl;

    // Loop to calculate and display the first 'trm' numbers in base 'bs'
    for (i = 1; i <= trm; i++) 
    {
        r = i % bs; // Calculate remainder when 'i' is divided by 'bs' (base)
        q = i / bs; // Calculate quotient when 'i' is divided by 'bs' (base)
        num = q * 10 + r; // Convert the number 'i' to the specified base and store it in 'num'
        cout << num << "  "; // Display the number in the specified base
    }
    cout << endl;
}

Sample Output:

 Print the first N numbers for a specific base:                        
 The number 11 in base 10 = 1*(10^1)+1*(10^0)=11                       
 Similarly the number 11 in base 7 = 1*(7^1)+1*(7^0)=8                 
----------------------------------------------------------------       
 Input the number of term: 15                                          
 Input the base: 9                                                     
 The numbers in base 9 are:                                            
1  2  3  4  5  6  7  8  10  11  12  13  14  15  16

Flowchart:

For more Practice: Solve these Related Problems:

Write a C++ program to print the first N natural numbers in a given base by converting each number from decimal.
Write a C++ program that reads N and a base value, then outputs the representation of numbers 1 through N in that base.
Write a C++ program to generate a sequence of numbers in a specified base and display them in order.
Write a C++ program that converts the first N numbers into a target base and prints the result as a space-separated list.

C++ Code Editor:

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