#include <iostream>
#include <string>
using namespace std;
int main()
{
string s1[\]= {"A","Z"};
string s="";
for (int i=0; i<2; i++)
cout << s.append(s1[i\]).insert(1,"_");
return( 0 );
}
ICAgICNpbmNsdWRlIDxpb3N0cmVhbT4KCiAgICAjaW5jbHVkZSA8c3RyaW5nPgoKICAgCgogICAKCiAgICB1c2luZyBuYW1lc3BhY2Ugc3RkOwoKICAgCgogICAKCiAgICBpbnQgbWFpbigpCgogICAgewoKICAgICAgIHN0cmluZyBzMVtcXT0geyJBIiwiWiJ9OwoKICAgICAgIHN0cmluZyBzPSIiOwoKICAgICAgCgogICAgICAgZm9yIChpbnQgaT0wOyBpPDI7IGkrKykKCiAgICAgICAgICAgICAgICAgY291dCA8PCBzLmFwcGVuZChzMVtpXF0pLmluc2VydCgxLCJfIik7CgogICAgICAgcmV0dXJuKCAwICk7CgogICAgfQoKICAg
prog.cpp:19:18: error: expected expression
string s1[\]= {"A","Z"};
^
prog.cpp:27:39: error: expected ']'
cout << s.append(s1[i\]).insert(1,"_");
^
prog.cpp:27:37: note: to match this '['
cout << s.append(s1[i\]).insert(1,"_");
^
2 errors generated.