Main.cc:14:16: warning: invalid suffix on literal; C++11 requires a space between literal and identifier [-Wliteral-suffix]
else cout<"NO"endl
^
Main.cc: In function 'int main()':
Main.cc:10:13: error: 'i' was not declared in this scope
while(n%i!=0&&n!=1){
^
Main.cc:13:8: error: 'i' was not declared in this scope
if(i==n) cout<<"YES"<<endl;
^
Main.cc:14:20: error: expected ';' before 'endl'
else cout<<"NO"endl
^