cpp23 wap to print all the prime no. in a range

#include <iostream>
#include<math.h>
using namespace std;

bool isprime(int n){
        for(int j=2;j<=sqrt(n);j++){
            if(n%j==0){
                return false;
            }
        }
        return true;
}

int main(){    
    int n1,n2;
    int n=2;
    cin>>n1>>n2;
    for(int i=n1;i<n2;i++){
        if(isprime(i)){
            cout<<i<<endl;
        }
    }

    return 0;
}