Write a pseudocode or algorithm for a C program that will ask a user for a certain number and display all prime numbers from 1 to that number using the do while loop #include #include using namespace std; int main() { int i,num,usernum; cout<<"Enter a number: "<<""; cin>>usernum; cout<<"All prime numbers from 1 up to "<< usernum <<" are:" <<" " ; i=2; do{ int counter=0; num=1; do{ if(i%num==0) { counter++; } num++; } while(num<=i); if(counter==2) { cout<

C++ for Engineers and Scientists
4th Edition
ISBN:9781133187844
Author:Bronson, Gary J.
Publisher:Bronson, Gary J.
Chapter9: Completing The Basics
Section: Chapter Questions
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Write a pseudocode or algorithm for a C program that will ask a user for a certain number and display all prime numbers from 1 to that number using the do while loop

#include <iostream>
#include <conio.h>
using namespace std;
int main()
{
int i,num,usernum;
cout<<"Enter a number: "<<"";
cin>>usernum;
cout<<"All prime numbers from 1 up to "<< usernum <<" are:" <<" " ;
i=2;
do{
int counter=0;
num=1;
do{
if(i%num==0)
{
counter++;
}
num++;
}
while(num<=i);
if(counter==2)
{
cout<<i<<" ";
}
i++;
}
while(i<=usernum);
getch();
return 0;
}

 

 

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