The code for the above problem is:-
#include<iostream>
#include<bits/stdc++.h>
using namespace std;
main(){
int num,sum=0; //variable for storing input and result
cout<<"Please enter a positive integer \n"; //prompting the
user for input
cin>>num;
while(num<=0) //checking if the input is negative or zero
{
cin.clear(); //clearing the input stream
cout<<"Invalid input . Please enter a positive
integer \n"; //prompting the user to check his input
cin>>num;
if(num>=1) //if the number entered is positive then
stop checking the number
break;
}
for(int i=1;i<=num;i++)
{
sum=sum+i; //calculating the sum upto that number
}
cout<<"The sum upto "<<num<<" is "<<sum; //
Displaying Result
}
The Screenshot of the code is provided below for proper indentation and positioning of comments:-
OUTPUT:-
C++ coding answer 5. Write a program that asks the user for a positive integer value....
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