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Thread: Loop counting odd and even numbers

  1. #1
    Join Date
    Mar 2008
    Posts
    672

    Loop counting odd and even numbers

    I want a way (a code in c or c ++) to display the result of given number,The best way to see if a given number is odd or even. Any recommendations and suggestions are appreciated.

  2. #2
    Join Date
    May 2008
    Posts
    2,302

    Re: Loop counting odd and even numbers

    Code:
    int main()
    {
    int in, evn=0, od=0;
    do
    {
    cout << "Please enter a number:"<< ' ';
    cin>> input;
    if ( (evn%2 == 0) && (in >= 0) )
      even++;
    else if (in >= 0)
      od++;
    }
    while (in>=0);
     
    cout << "You have entered" << ' '<< od << ' ' <<"odd numbers." << endl;
    cout << "And" << ' ' << evn << ' ' <<"even numbers." << endl;
    system("PAUSE");
    return 0;
    }

  3. #3
    Join Date
    Jan 2009
    Posts
    199

    Re: Loop counting odd and even numbers

    Code:
    long oddno =1;
     long maxno;
     unsigned long lproduct;
     cout<<"enter the odd number";
     cin >> maxno;
     while( oddno<= maxno )
     {
           long tempno = oddno + 2;
           lpro = tempno *oddno;
           cout<<"the product of two numbers first number"<<oddno<<"second number"<<tempno<<"equals"<<lpro<<"\n";
           oddno = tempno;
    }

  4. #4
    Join Date
    Dec 2008
    Posts
    177

    Re: Loop counting odd and even numbers

    Use the AND operation.
    Code:
    for(int i=0;i<=100;i++)
    {
    if(i&1)
    {
    printf("Odd\n");
    }
    else
    {
    printf("Even\n");
    }
    }

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