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CHALLENGE ACTIVITY 4.2.2: Basic while loop with user input. Write an expression that executes the loop while the user enters a number greater than or equal to 0. Note: These activities may test code with different test values. This activity will perform three tests, with user input of 9, 5, 2, -1, then with user input of 0, -17, then with user input of -1. See "How to Use zyBooks" . Also note: If the submitted code has an infinite loop, the system will stop running the code after a few seconds, and report "Program end never reached." The system doesn't print the test case that caused the reported message.

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ammary456

Answer:

#include<iostream>

using namespace std;

int main()

{

int userNum;

userNum=9;

while(userNum>=0)

{

  cout<<"Body"<<endl;

  cin>>userNum;

}

cout<<"Done"<<endl;

return 0;

}

Explanation:

  • Use the userNum >= 0 expression that executes the loop while the user enters a number greater than or equal to 0.
  • Print the userNum inside the while loop.
MrRoyal

Loops are repeated program statements

The expression for the while loop in Python, where comments are used to explain each line is as follows is:

#This gets input for the number

num = int(input())

#This is repeated while the input is 0 or more

while num>=0:

   #This gets another input

   num = int(input())

Read more about loops at:

https://brainly.com/question/19344465

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