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Thread: To find the possible consecutive natural no.s which when added, give user-entered no.

  1. #1
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    Default To find the possible consecutive natural no.s which when added, give user-entered no.

    The question states : "Write a program which inputs a positive natural number N and prints the possible consecutive number combinations, which when added give N".
    For example :
    N=9
    Output :
    2 3 4
    4 5

    Another Example:
    N=27
    Output:
    2 3 4 5 6 7
    8 9 10
    13 14

    Here's my source code :
    import java.io.*;
    class neutral
    {
    int N;
    void main()throws IOException
    {
    BufferedReader br = new BufferedReader (new InputStreamReader (System.in));
    System.out.println("Enter a Number:");
    N=Integer.parseInt(br.readLine());
    int arr[]=new int[N];
    int no=1;
    int f=0;
    int r=f;
    int sum=0;
    for(int i=0; i<N; i++)
    {
    arr[i]=no;
    no++;
    }
    for(f=0; f<N; f++)
    {
    for(r=f; r<N; r++)
    {
    sum=sum+arr[r];
    if(sum==N)
    {
    break;
    }
    }
    if(sum==N)
    {
    break;
    }
    }
    for(int k=f; k<r; k++)
    {
    System.out.println(arr[k]+" ");
    }
    }
    }

    =========================
    It accepts the number but gives no output.
    Can you please verify the errors, correct it, and tell me where I went wrong.
    Thanks. =)


  2. #2
    Crazy Cat Lady KevinWorkman's Avatar
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    Default Re: To find the possible consecutive natural no.s which when added, give user-entered

    Quote Originally Posted by amandeshmukh5 View Post
    Can you please verify the errors, correct it, and tell me where I went wrong.
    Thanks. =)
    That's not how this work. I recommend you read through this: http://www.javaprogrammingforums.com...e-posting.html as well as the link in my signature on asking questions the smart way.

    Also, you should try stepping through this with a debugger, or at least adding some more print statements, to figure out what's going on in your program.
    Useful links: How to Ask Questions the Smart Way | Use Code Tags | Java Tutorials
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