Run id: 124122

Main.cc: In function 'int main()':
Main.cc:6:17: error: 'n' was not declared in this scope
  for(int i=1;i<=n;i++ ){
                 ^
Main.cc:10:12: error: 'n' was not declared in this scope
  for(int i=n;i>=1;i-- ){
            ^