Finding the largest number using if

[Mshabeeb]

I am new to C++.

I was trying to do a program that find the largest among 5 doubles but I always get the same output

here is my code:

/*
programmer: Mshabeeb

C program to count the largest number
*/

#include <iostream>
int main() {
double x,y,z,a,b,largest;

cout<<"Please input five double values:"<<x<<" "<<y<<" "<<z<<" "<<a<<" "<<b<<endl;


largest=x;

if (y>largest) largest=y;
else if (z>largest) largest=z;
else if (a>largest) largest=a;
else if (b>largest) largest=b;
cout<<"The largest value found in the input is"<<largest<<endl;

return 0;
}





I always get the same output whatever the values inputted are:

Please input five double values:4.89922e-270 -1.57834 -2.54553e-42 1.52069e-314 -6.90553e-42
The largest value found in the input is4.89922e-270


I should do it this way to get the grade and I don't know where is the mistake.
I will be thankful if you can help me before midnight

[Reaper1]

well first off, if you want the largest of 5 number, you need to have them inputted first using the cin command.

example

#include <iostream>
using namespace std;

void main()
{
          int a, b, c, d, e;

          cout << "Enter 5 numbers: "
          cin >> a;
          cin >> b;
          cin >> c;
          cin >> d;
          cin >> e;
}

As for finding the largest you need to see how many if-then/if-else statements you need, if you need, now you can either write them seperate like you have or a different way.

example

if (a > b && a > c && a > d && a > e)
{
       largest = a;
       cout << "The largest number is << a << endl;
}
else if (b > a && b > c && b > d && b > e)
{
         largest = b;
         cout << "The largest number is << b << endl;
}
and so on

your making more work for you because your doing it sepeately, meaning youll have more if-then statements.

cout is whats use to print something to the screen and cin allows the program to get the user input from the keyboard.

[Shinigami]

First: use arrays or vectors from STD to store numbers.
Second: don't use so many if - else. Use loop to search. And you will need only a few if - else.

Edit:
you will need one array and one if(), no else;