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C++ program to find greatest number between three numbers

Program description
This program shows the greatest number between three numbers using if-else-if statement. It takes three numbers as input from user and output the greatest number.

 code:

  1. #include<iostream>
  2. using namespace std;
  3. int main()
  4. {
  5. int num1,num2,num3;
  6. cout<<" Enter value for first number";
  7. cin>>num1;

  9. cout<<" Enter value for second number";
  10. cin>>num2;

  12. cout<<" Enter value for third number";
  13. cin>>num3;
  14. if(num1>num2&&num1>num3)
  15. {
  16. cout<<" First number is greatest:"<<endl<<"whick is= "<<num1;
  17. }
  18. else if(num2>num1&&num2>num3)
  19. {
  20. cout<<" Second number is greatest"<<endl<<"whick is= "<<num2;
  21. }
  22. else
  23. {
  24. cout<<" Third number is greatest"<<endl<<"whick is= "<<num3;
  25. }
  26. return 0;
  27. }

Note : If you have any query or idea about program 
Comment below.



23 comments:

  1. Mehboob MasihOctober 25, 2012 at 8:59 AM

    In this program you never include the #include library so that i am not able to write clrscr(); and getch(); because output screen is not holding after Entering the Third number and also screen is not clear for next time compiling of program.
    using namespace std; is not working!!!!!!!

    ReplyDelete
    Replies
    1. UnknownOctober 25, 2012 at 12:38 PM

      It depends on compiler you are using to write code.
      For Turbo C++ and Borland C++ compiler use the header file
      #inclulde to write clrscr(); and getch()
      They don't work with using namespace std;

      In visual studio
      to clear screen use system("cls")

      Delete
    2. UnknownSeptember 26, 2014 at 10:17 PM

      use #include for clrscr and getch

      Delete
  2. Nikola AnđelićDecember 15, 2012 at 11:29 AM

    This comment has been removed by a blog administrator.

    ReplyDelete
  3. Elizabeth the writers BlogDecember 29, 2012 at 3:27 AM

    Is this topic connected with your education or is it mostly about your hobbies and free time?

    ReplyDelete
  4. CPP ProgrammingJuly 3, 2013 at 8:24 PM

    Thanks for the efforts on gathering useful content and sharing here. You can find more questions and answers related to C, C++ programming and all other programming languages Q&A in the below forum.

    C CPP programming and programming languages Q&A

    ReplyDelete
  5. UnknownAugust 27, 2013 at 11:09 AM

    what if two numbers among the three are equal?

    ReplyDelete
  6. YOOEYSeptember 1, 2013 at 3:09 AM

    This program is a much better version of this with extra functionality.

    #include

    using namespace std;

    int main()
    {
    int num1,num2,num3;

    cout<<"Enter 1st Number : ";
    cin>>num1;
    cout<<"\nEnter 2nd Number : ";
    cin>>num2;
    cout<<"\nEnter 3rd Number : ";
    cin>>num3;

    if(num1>num2 && num1>num3)
    cout<<"\n**** "<num1 && num2>num3)
    cout<<"\n**** "<num2 && num3>num1)
    cout<<"\n**** "<<num3<<" is the largest number. ****";

    if(num1==num2 && num1==num3 && num2==num1 && num2==num3 && num3==num1 && num3==num2)
    cout<<"\n**** All three numbers are same ****";

    else
    cout<<"\n**** Wrong Combination. Try Again ****";




    return 0;
    }

    ReplyDelete
  7. UnknownSeptember 30, 2013 at 9:33 AM

    // A Switch Program

    #include
    #include

    using namespace std;

    int main(int argc, char *argv[])
    {

    //Switches (case Structure) //

    int marks;

    cout<<"\t\nEnter the makrs = ";
    cin>>marks;
    cout<<"\t\nCongratulations Your Grade is = ";

    switch (marks)
    {
    case 90:
    cout<<"A\n\n\n";
    break;
    case 80:
    cout<<"B\n\n\n";
    break;
    case 70:
    cout<<"C\n\n";
    break;

    default:
    cout<<"Sorry Try Again Student\n\n";
    break;
    }

    system("PAUSE");
    return 0;
    }

    ReplyDelete
  8. jobshiveproDecember 30, 2013 at 12:20 AM

    write a program that in put 4 value from the user and find the maximum number using nested if

    ReplyDelete
  9. UnknownJanuary 27, 2014 at 2:48 AM

    Its Possible to use double If else in this Program ??

    ReplyDelete
    Replies
    1. Fahad MunirJanuary 29, 2014 at 8:59 AM

      Yes You Can. Copy The Code Paste It In Compiler and Do Experiment With Dry Run.

      Delete
  10. UnknownFebruary 6, 2014 at 10:21 PM

    why don't u just use array traversing? ain't that simple as shit?

    ReplyDelete
  11. ssptcceOctober 9, 2014 at 3:19 AM

    #include
    #include

    void main()
    {
    int x,y,z,max;
    clrscr();
    cout<<"Enter The Three Numbers ";
    cin>>x>>y>>z;

    max=x;
    if (y>max)
    max=y;
    if (z>max)
    max=z;

    cout<<"\n"<<"The Greatest Number among "<<x<<" "<<y<<" "<<z<<" is "<<max;
    getch();
    }

    ReplyDelete
  12. UnknownJuly 3, 2015 at 7:04 AM

    can u please do it with the greatest,the second greatest and the lowest together ,???

    ReplyDelete
  13. AnonymousOctober 16, 2015 at 1:06 AM

    how can we write the program for fourth number to find the greatest number in them.

    ReplyDelete
  14. UnknownNovember 1, 2015 at 1:59 AM

    This comment has been removed by the author.

    ReplyDelete
  15. Zeyad WagdyDecember 29, 2015 at 11:33 AM

    #include
    using namespace std;
    int main()
    {
    int num1, num2, num3 , max;
    cin >> num1;
    cin >> num2;
    cin >> num3;
    max = num1;
    if (num2 > max)
    {
    max = num2;
    }
    if (num3 > max)
    {
    max = num3;
    }
    cout << "The greatest number is " << max;
    cin.get();
    cin.ignore();
    return 0;
    }

    ReplyDelete
  16. UnknownJune 10, 2016 at 4:22 AM

    THANK U SOO MUCH......IT HELPED ALOT......THNX C++

    ReplyDelete
  17. NikJune 22, 2017 at 9:34 PM

    How to find largest number among three using friend function and three classes?

    ReplyDelete
  18. NikJune 22, 2017 at 9:35 PM

    Find largest number among three using friend function and three classes?

    ReplyDelete