Main.cc:2:1: error: 'cin' does not name a type
cin>>n;
^
Main.cc:3:1: error: expected unqualified-id before 'for'
for(int x=0;x<=n;x++){
^
Main.cc:3:13: error: 'x' does not name a type
for(int x=0;x<=n;x++){
^
Main.cc:3:18: error: 'x' does not name a type
for(int x=0;x<=n;x++){
^
Main.cc:14:1: error: expected unqualified-id before 'if'
if(a==0){
^