while loop - still need help

I have been working on a problem to enter the first term then a second term.... then add all of the numbers

for example..
enter first term: 1
enter second term: 5
output
1+2+3+4+5 = 14

I was able to get that to work correctly...
now I am trying to do the second half of the program...
to output
1*1*1 + 2*2*2 + 3*3*3 + 4*4*4 + 5*5*5 = answer

this is what i have so far... I think I have the right idea but something like a bracket in the wrong place or maybe too many places

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

main()
{
int firstnum, secondnum, answer;
int total = 0;
int total2 = 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<<"\n";


{
cout<<firstnum<<" * " << firstnum<<" * "<<firstnum;
total2 = (firstnum * firstnum * firstnum);
firstnum++;
}

cout<<" = "<<total2<<"\n";
}


}

when i compile I get an error.... expecting a bracket....

suggestions would be appreciated.

thank you

[email protected]

>total2 = (firstnum * firstnum * firstnum);

here you are reassigning firstnum cubed to the total... which does not make it a running total...

try...

Code:

---

total2 += (firstnum * firstnum * firstnum);

---

oh... and to help with your questioning, use code tags...

so far as the brackets... seems okay since you have a correct number and sequence of brackets, but maybe your compiler doesn't like that you have blocks without a looping variable... what is the exact error?

hth...

Try this:

int multotal,total;
while (firstnum <= secondnum)
{
cout<<firstnum<<"*"<<firstnum<<"*"<<firstnum;
if (firstnum < secondnum)
{
cout<<" + ";
}
multotal=firstnum*firstnum*firstnum;
total=total+multotal;
firstnum++;
}
cout<<" = "<<total;

I am still trying to make a program that:
Enter first term: 1
Enter second term: 4
Output:
1 + 2 + 3+ 4 = answer
1*1*1 + 2*2*2 + 3*3*3 + 4*4*4 = answer

This is the code that I have:
#include<iostream.h>
#include<math.h>

main()
{
int firstnum, secondnum, answer;
int total = 0;
int total2 = 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<<"\n";


{
cout<<firstnum<<" * " << firstnum<<" * "<<firstnum;
firstnum++;
}
total2+= (firstnum * firstnum * firstnum);
cout<<" = "<<total2<<"\n";
}


}

But instead when I run the program I get:
Please enter beginning term: 1
Please enter ending term: 4
1 + = 1
2 * 2 * 2 = 27
3 + = 4
4 * 4 * 4 = 152

Any suggestions would be really appreciated.

Thank You

I didn't test this as I don't have access to a compiler at the moment, but it was paper debugged, so the logic should work.

Code:

---

void printSingle(int start, int end){
    int i = s, total = 0;
    while(n < end){
        cout<<n;
        if(n != end-1) cout<<"+";
        total += n++;
    }
    cout<<"="<<total<<endl;
}

void printCube(int start, int end){
    int cubeTotal = 0, total = 0;
    for(int i = start; i < e; ++i){
        for(int j = 0; j < 3; ++j){
            cout<<i;
            if(j != 2) cout<<"*";
            cubeTotal *= i;
        }
        total += cubeTotal;
        cout<<"+";
    }
    cout<<"="<<total<<endl;
}

---

-Prelude

Hi Learnin,
I hear that you can enclose pretty much any code in {}, but I am wondering why you put them there. I have never seen anything like this. If they are for documentation, a couple of //words might help. The{} confuse me, and maybe the compiler. I, beginner, usually write }//end of while -- to keep myself straight.

Also, I'm pretty sure that your code won't get the right answer. If the user enters, say, 1-5, I suspect the ++ will change the 1 into a 2 by the time you get to the * part, and then to a 3 by the time you get back to the + part.
Good luck, Al:o