get ascii value of string in c 2b 2b

1#include<iostream>
2using namespace std;
3int main ()
4{
5    char c;
6    cout << "Enter a character : ";
7    cin >> c;
8    cout << "ASCII value of " << c <<" is :  " << (int)c;
9    return 0;
10}

1#include<iostream.h>
2#include<conio.h>
3void main()
4{
5  char a;
6  clrscr();
7  cout<<"\nEnter any key: ";
8  cin>>a;
9  cout<<"ASCII value of "<<a<<" is: "<<int(a);
10  getch();
11}

1int main()
2{
3 char *s="hello";
4 while(*s!='\0')
5  {
6  printf("%c --> %d\n",*s,*s);
7  s++;
8  }
9 return 0;
10}