Using C++ What input must be provided to the following “ for Loop With Sum” fragment for it to display 20? #include using namespace std; int main() {               int n, sum = 0;               cout << ("please enter a positive integer") << endl;               cin >> n;               for (int i = 0; i <= n; i=i+2) { sum += i;               }               cout << sum << endl; }

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
icon
Related questions
icon
Concept explainers
Question

Using C++ What input must be provided to the following “ for Loop With Sum” fragment for it to display 20?

#include <iostream>

using namespace std;

int main() {

              int n, sum = 0;

              cout << ("please enter a positive integer") << endl;

              cin >> n;

              for (int i = 0; i <= n; i=i+2) {

sum += i;

              }

              cout << sum << endl;

}  

Expert Solution
Step 1

There is one C++ program is given.

We have to find the INPUT so the program will provide 20 as output.

GIven program,

#include <iostream>

using namespace std;

int main() {

              int n, sum = 0;

              cout << ("please enter a positive integer") << endl;

              cin >> n;

              for (int i = 0; i <= n; i=i+2) {

sum += i;

              }

              cout << sum << endl;

}  

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Knowledge Booster
Control Structure
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Database System Concepts
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
C How to Program (8th Edition)
C How to Program (8th Edition)
Computer Science
ISBN:
9780133976892
Author:
Paul J. Deitel, Harvey Deitel
Publisher:
PEARSON
Database Systems: Design, Implementation, & Manag…
Database Systems: Design, Implementation, & Manag…
Computer Science
ISBN:
9781337627900
Author:
Carlos Coronel, Steven Morris
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Computer Science
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education