#include
#include
using namespace std;
int main()
{
ofstream fout("test");
if(!fout) {
cout << "Cannot open output file.\n";
return 1;
}
fout << "Hello!\n";
fout << 100 << ' ' << hex << 100 << endl;
fout.close();
ifstream fin("test"); // open input file
if(!fin) {
cout << "Cannot open input file.\n";
return 1;
}
char str[80];
int i;
fin >> str >> i;
cout << str << ' ' << i << endl;
fin.close();
return 0;
}