Write C++ program that adds positive integer numbers from 1 to 1000 using while/for loop control structure.

Question

First try to understand the question and express it in your own words, next try to solve the question and formulate some math related expressions starting from input-> process--> output arrangement (this is formulating algorithm), then use graphical method to describe the step by step arrangement you already have at the algorithm phase. Finally, start coding using appropriate header file, variable declaration and initialization, and apply proper syntax rules.

Answer 1

#include <iostream>

using namespace std;

int main() {

int sum = 0;

for (int i = 1; i <= 1000; i++) {

sum += i;

}

cout << "Sum from 1 to 1000 using for loop: " << sum << endl;

return 0;

}

Answer 2

#include<iostream>

using namespace std;

int main()

{

int sum = 0;

for(int i=1; i<=1000; i++)

{

sum = sum + i;

}

cout<<"The Sum is: "<<sum;

return 0;

}