This code said compilation error. What's wrong with it?

Question

#include <iostream>
using namespace std;

int main() {
int div=2;
int num;
bool switch=true
cout<<"Please enter a number:"<<endl;
cin>>num>>endl;
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

Missing semicolons... compilation error is not a guarentee of something being wrong. I get them all the time and run once more to get my errors or working output.

Answer 2

Your if at the end will always be true as you are missing the second =.

Answer 3

You can not cin into endl.
ie cin>>num>>endl;
is invalid.

Answer 4

John Wells Thanks!!