Run id: 130732

Main.cc: In function 'int main()':
Main.cc:10:23: warning: left operand of comma operator has no effect [-Wunused-value]
  for(int i=0,j=len-1;i=0;i++,j--)
                       ^
Main.cc:22:8: error: 'Yes' was not declared in this scope
  cout<