Thread: while looping

I am trying to figure out how to make a program so that when I enter a starting number and an ending number all numbers between that are added up.

For Example
First Number: 1
Second Number: 5

The program will: 1+2+3+4+5 = answer

This is what I have so far

#include<iostream.h>
#include<math.h>

main()
{
int firstnum, secondnum, x, answer;

answer = 0;

cout<<"Please enter beginning term: ";
cin>>firstnum;
cout<<"Please enter ending term: ";
cin>>secondnum;


while(firstnum<=secondnum)
{
answer = firstnum++;
{
cout<<answer<<endl;
}
} return 0;
}
This prints
1
2
3
4
5

How would I get it to 1 + 2 + 3 + 4 + 5 using the while loop?

Any help would be appreciated.

Thank You

[email protected]

using a for loop it would be

int answer = 0;
for(i = startingNumberp; i <= endingNumber; i++)
{
answer += i; //expands to answer = answer + i;
}
cout << answer;

maybe this will work,i didn't test it though, it may be wrong.


int total=firstnum;
while(firstnum<=secondnum) {
cout<<answer<<" + ";
answer = firstnum++;
total+=answer;
}
cout<<" = "<<total;

I tried correcting the while loop... I am a step closer but not quite there....

The code I now am using is

#include<iostream.h>
#include<math.h>

main()
{
int firstnum, secondnum, answer;


cout<<"Please enter beginning term: ";
cin>>firstnum;
cout<<"Please enter ending term: ";
cin>>secondnum;

int total = firstnum;
while(firstnum<=secondnum)
{
cout<<answer<<" + ";

answer = firstnum++;
total +=answer;
}
cout<<" = "<<total;
}

When I run the program I get..

Please enter beginning term: 1 // i entered the number 1
Please enter ending term: 5 // i entered the number 5
5368726784 + 1 + 2 + 3 + 4 + = 16

I'm not sure why I am getting 5368726784.. any suggestions would be appreciated...

when the program is correct it should say 1 + 2 + 3 + 4 + 5 = 15

I apprecate the help so far... Any more would be even more appreciated.

Thank You

[email protected]

int total=0
int temp=firstnum;
while(firstnum<=lastnum)
{
cout<<temp<<"+";
total=(total+temp);
temp++;
}
cout<<"="<<total;

I tried the last suggestion unfortuantely I it was never ending... information with I believe six digits plus six digits just kept continuing... this is the code I used.

#include<iostream.h>
#include<math.h>

main()
{
int firstnum, temp, secondnum, answer;
int total = 0;

cout<<"Please enter beginning term: ";
cin>>firstnum;
cout<<"Please enter ending term: ";
cin>>secondnum;

temp = firstnum;
while(firstnum<=secondnum)
{
cout<<temp<<" + ";
total=(total+temp);
temp++;
}
cout<<" = "<<total;
}

Any additional help would be appeciated... I still have some hope that I will end up being able to enjoy a little of the weekend.

Thank You

[email protected]

this should work:

main()
{
int firstnum, secondnum, answer;
int total = 0;

cout<<"Please enter beginning term: ";
cin>>firstnum;
cout<<"Please enter ending term: ";
cin>>secondnum;

while(firstnum<=secondnum)
{
cout<<firstnum<<" + ";
total=(total+firstnum);
firstnum++;
}
cout<<" = "<<total;
}