Dev - C++ - me pueden ayudar aqui me da error de convercion

#include <iostream>

#include <stdio.h>

#include <string.h>

using namespace std;

main(){

char *p ;

char frase[200];

int cant;

cout<<"Ingrese su frase: ";

 cin>>frase;

p=&frase;

  delete[] p;

cant = strlen(frase);

cout<< "frase: "<<&frase<<endl<<cant<<endl;

cout<<endl;

}

#include <iostream>

#include <string>

using namespace std;

int main(){

    string *p;

    string frase;

    int cant;

    cout << "Ingrese su frase: ";

    getline(cin, frase);

    p = &frase;

    cant = frase.length();

    cout << "\nfrase: " << frase

         << "\nlongitud: " << cant

         << "\nP: " << *p << endl;

    p = NULL;

    cout << "\nP = NULL: " << p << endl;

    return 0;

}