Help with sum of numbers

[psp1202]

Hey all i'm trying to add the sum between two numbers and for some reason my calculations are off. For example when the user inputs the numbers 1 and 4 the answer is calculate as 10 instead of 5. I am not sure what I'm doing wrong...

#include<iostream>
using namespace std;
 
int main()
{
 
  int num1, num2;
 
  cout<<"Enter an integer: ";
  cin>>num1;
  cout<<"Enter another integer: ";
  cin>>num2;
 
  int total = 0;
  for (int x=num1; x<=num2; x++)
  {
 
         total += x;
 
  }  
 
  cout<<"The sum of the integers between the two numbers is "<< total;

[markyrocks]

#include<iostream>
using namespace std;
 
int main()
{
 
  int num1, num2;
 
  cout<<"Enter an integer: ";
  cin>>num1;
  cout<<"Enter another integer: ";
  cin>>num2;
 
  int total = num1+num2;
  //for (int x=num1; x<=num2; x++)
  //{
 
        // total += x;
 
 // }  
 
  cout<<"The sum of the integers between the two numbers is "<< total;

  //add pause here 

//ico 

this all you need the for statement is useless

[TheMassiveChipmunk]

I think this what you want to do.

#include <iostream>

using namespace std;

int main(int argc, char *argv[])
{
  int X = 0 , Y = 0 , Total = 0;
  cout << "Enter an integer." << endl;
  cin >> X;
  cout << "Enter an other integer." << endl;
  cin >> Y;
  Total = X + Y;
  cout << "The sum of the integers is " << Total << endl;
  return 0;
}

I do not understand why you have a for loop.

Hope this helps :)

[psp1202]

Hey thanks for the reply. I don't think I was very clear in my original post. First, I am required to use a for loop for this and I'm trying to find the sum of the integers BETWEEN the two user input values. For example, if the user enters 6 and 10 I want to find the sum of the numbers 7+8+9.

[TheMassiveChipmunk]

Do you mean this?

#include <iostream>

using namespace std;

int main(int argc, char *argv[])
{
  int X = 0 , Y = 0 , Total = 0;
  cout << "Please enter an integer." << endl;
  cin >> X;
  cout << "Please enter an other integer." << endl;
  cin >> Y;
  for (int i = X ; i <= Y ; i++)
    {
      cout << Total << endl;
      Total += i;
    }
  cout << "The sum between the numbers is " << Total << "." << endl;
  return 0;
}

[psp1202]

When the numbers are plugged into the code you have provided the sum between those numbers is incorrect just like my program. I'm not sure what I'm doing wrong I feel like this should be easy and I am making it way too difficult.

[whitenite1]

@psp1202

I am confused. In your original post, you wrote 1 and 4 the answer is calculate as 10, which is 1+2+3+4, but in the last post, you write, enters 6 and 10 I want to find the sum of the numbers 7+8+9. Which is it? The numbers from start to end, or the numbers in between? Here's your code for either way..

#include<iostream>

using namespace std;
 
int main()
{
   int num1, num2, total;
 
  cout << "Enter an integer: ";
  cin >> num1;
  cout<<"Enter a larger integer: ";
  cin >> num2;
 
  total = 0;
  for (int x=num1; x<=num2; x++)
  { 
        total += x;
  }  
 
  cout<<"The sum of the integers from " << num1 << " to " << num2 << " = " << total << endl;

 total = 0;
  for (int x=num1+1; x<num2; x++)
  { 
        total += x;
  }  
 
  cout<<"The sum of the integers between the numbers = " << total << endl;
return 0;
}

[psp1202]

Thank you for the help and sorry for the confusion. When I said the the calculation was equal to 10 I was stating that is what my program was calculating instead of the right answer which would be 5.

[kdmpenguin]

i wrote a program like this already

[whitenite1]

@psp1202

Okay. So then the answer would be the second solution in the code I posted.