Main.cc:7:1: error: expected unqualified-id before 'for'
for(i=1;;i++){
^
Main.cc:7:10: error: 'i' does not name a type
for(i=1;;i++){
^
Main.cc:15:2: error: 'cout' does not name a type
cout << "A="<j/2)
^
Main.cc:21:1: error: expected unqualified-id before 'else'
else if(a[2]>j/2)
^
Main.cc:23:1: error: expected unqualified-id before 'else'
else if (a[3]>j/2){
^
Main.cc:26:1: error: expected unqualified-id before 'else'
else{
^