#include <iostream>
#include <string>

using namespace std;

int main(void)
{
    string i;

    i = "hello";

    i.insert(0,2,"g");

    cout << i<<endl;
}

Line 19: error: iostream: No such file or directory
Line 17: error: string: No such file or directory
Line 4: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'namespace'
In function 'main':
Line 8: error: 'string' undeclared (first use in this function)
Line 8: error: (Each undeclared identifier is reported only once
Line 8: error: for each function it appears in.)
Line 8: error: expected ';' before 'i'
Line 10: error: 'i' undeclared (first use in this function)
Line 14: error: 'cout' undeclared (first use in this function)
Line 14: error: 'endl' undeclared (first use in this function)