Could someone please tell me all the errors with this code? I couldn't really understand what they were.

Question

#include <iostream>
using namespace std;

int main(){
int div=2;
int num;
bool switch==true;
cout<<"Please enter a number:"<<endl;
cin>>num;
do{
if(num%div>0){
div++;
}
else{
switch=false;
}
}while(div<num&&num%div>0)
if(switch==true){
cout<<num<<"is a prime number.";
}
else{
cout<<num<<"is not a prime number.";
}
return 0;
}

Answer 1

I only saw three errors:

- you are using '==' to assign a variable, it should be '='.
- switch is a reserved word, so you can not use it as the name of a variable.
- missing a ';' after this expression: while (div<num&&num%div>0)

#include <iostream>
using namespace std;

int main(){
int div=2;
int num;
bool sw = true;
cout<<"Please enter a number:"<<endl;
cin>>num;
do
{
if(num%div>0)
{
div++;
}
else
{
sw = false;
}
} while (div<num&&num%div>0);

if(sw == true)
{
cout<<num<<" is a prime number.";
}
else
{
cout<<num<<" is not a prime number.";
}
return 0;
}

Answer 2

Mickel thank you!