C++ Program to Print Numbers From 1 to n Without Using Loops, Recursion or Goto Statement

You may have made program to print numbers from 1 to n using
loops, recursion or goto statement. But have you ever thought about doing this
without help of loops, recursion or goto? It can be done without using such
things as explained in below program.Also Read: C program to find factorial of any number using recursion
Also Read: C++ Templates: Program to Swap Two Numbers Using Function Template

#include<iostream>
using namespace std;
class Num
{
    public:
    static int i;
    Num()
    {
        cout<<i++<<” “;
    }
};
int Num::i=1;
int main()
{
    int n;
    cout<<“Enter value on n:”;
    cin>>n;
    Num obj[n];
    return 0;
}
In this program we are using the concept of static data
member and array of objects. Class Num
contains a static variable i whose value
will remain till the program terminates. We are creating an array of objects
of class Num. In this program we are
creating n objects, value of n depends on input we give. The default
constructor is called for all objects one by one. In the constructor the value
of i is printed and is incremented
by one in each call. In this way numbers from 1 to n are printed.
C++ Program to Print Numbers From 1 to n Without Using Loops, Recursion or Goto Statement
If you have any doubts or any suggestion regarding above
program then you can ask it by commenting below.

13 thoughts on “C++ Program to Print Numbers From 1 to n Without Using Loops, Recursion or Goto Statement

  1. Malang Sarkar

    try this code if anyone facing problem

    #include

    using namespace std;

    class Num
    {
    public:
    static int i;
    Num()
    {
    cout<<i++<<" ";
    }
    };

    int Num::i=1;

    int main()
    {

    Num obj[60];
    return 0;
    }

    Reply
    1. Neeraj Mishra

      Your code will print from 1 to 60 only. We want to print from 1 to n, the value of n depends on input. So the code I have shared above is suitable for it. Anyways, thanks for your nice suggestion.

      Reply
  2. DylansDad

    When I compile,errors says unused variable 'obj' and ISO C++ forbids variable length array 'obj'. Do I have to run this in header file seperate from the main or can I run it as shown here in a single cpp file?

    Reply

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