Basic program

[johnr15]

I'm practicing so I wrote this simple program that suppose to add and divide two numbers. It does that but the result comes out with a 0 at the front and don't know why. Any idea? Thanks

#include<iostream>
using namespace std;

int main()
{


int a ,b;
int result;
a = 0;
b = 0;
//a = a + 90;
//result = 0;
result = a + b;
cout << "Enter a number for a and a number for b:" << endl;
cin >> a >> b;
cout <<"the answer is:" << result << (a + b)/2 <<endl;

return 0;
}

[Rehan FASTian]

result = a + b;
cout << "Enter a number for a and a number for b:" << endl;
cin >> a >> b;

You are summing a and b first and then taking a & b as input.
When a and b are being added, a = 0 & b = 0, so result is giving 0.

Solution:

#include<iostream>
using namespace std;

int main()
{


int a ,b;
int result;
a = 0;
b = 0;
//a = a + 90;
//result = 0;
cout << "Enter a number for a and a number for b:" << endl;
cin >> a >> b;
result = a + b;
cout <<"the answer is:" << result << (a + b)/2.0 <<endl;

return 0;
}

[johnr15]

thanks wiseRehan,

I ran it and now it's giving me a different result which doesn't look right. For example, if enter two numbers, 5,5 it give me 105.

[Rehan FASTian]

The thing being printed is the result (10) and average(5) without any space or newline.

Replace your cout statememnt with:
cout <<"the answer is:" << result << endl;
cout << "Average is: " << (a + b)/2.0 <<endl; //or you can write cout << "Average is: " <<result/2.0 <<endl;

[Rehan FASTian]

Side note: Remember result/2 and result/2.0 are two different things. Division of two integers give an integer where as division of an integer and a float gives float.