Building a for loop

/****************************************************************************************
4_51a.cpp

example 1, trivial case

****************************************************************************************/
#include <iostream>
#include <string>
using namespace std;

int main()
    {
    //prompt & inform the user
    cout << "This program will add together the range of integers from 0 to 10" << endl;
    cout << "Sum: " << 0+1+2+3+4+5+6+7+8+9+10 << endl;

    return 0;
    }

This program will add together the range of integers from 0 to 10
Sum: 55

/****************************************************************************************
4_51b.cpp

Series sum using WHILE

****************************************************************************************/
#include <iostream>
#include <string>
using namespace std;

int main()
    {
    //prompt & inform the user
    cout << "This program will add together the range of integers from 0 ... 10" << endl;

    int sum = 0,  //placeholder for running sum
        next= 0;  //placeholder for which number to add

    while ( next <= 10)
        {
        sum = sum + next;
        next++;
        }

    cout << "Sum: " << sum << endl;

    return 0;
    }

This program will add together the range of integers from 0 to 10
Sum: 55

/****************************************************************************************
4_51c.cpp
    Jim Millard
    for CO311/Spring 2000

Series sum using FOR

****************************************************************************************/
#include <iostream>
#include <string>
using namespace std;

int main()
    {
    //prompt & inform the user
    cout << "This program will add together the range of integers 0 ... 10" << endl;

    int sum = 0; //placeholder for running sum

    for (int next=0; next <= 10; next++)
        sum += next;

    cout << "Sum: " << sum << endl;

    return 0;
    }

This program will add together the range of integers from 0 to 10
Sum: 55

/****************************************************************************************
4_51d.cpp
    Jim Millard
    for CO311/Spring 2000

Series sum using FOR

****************************************************************************************/
#include <iostream>
#include <string>
using namespace std;

int main()
    {
    //useful constants
    const int start = 0, finish = 10;

    //prompt & inform the user
    cout << "This program will add together the range of integers from "
         << start << " ... " << finish << endl;

    int sum = 0; //placeholder for running sum

    for (int next=start; next <= finish; next++)
        sum += next;

    cout << "Sum: " << sum << endl;

    return 0;
    }

This program will add together the range of integers from 0 to 10
Sum: 55