Help me complete with this output :x

Question

what is the code when the ouput is like this :

_______________________________
enter your first number = //ex: 2
enter your last number = // ex: 6

the answer is :
2 + 3 + 4 + 5 + 6 = 20
--------------------------------
i can make output 2-6, but can't make the calculation.
Any suggestion ?

Answer 1

int start, end, sum = 0;
cin>>start>>end;
for(int i=start;i<=end;i++)
{
cout<<i<<"+";
sum+=i;
}
cout<<"="<<sum<<endl;

// Add other required cout operations yourself.

Answer 2

thx bro.