/in/foo.cc:17:10: error: stray '\357' in program
    doar*=（double）(day[i]/day[i+1]);
          ^
/in/foo.cc:17:11: error: stray '\274' in program
    doar*=（double）(day[i]/day[i+1]);
           ^
/in/foo.cc:17:12: error: stray '\210' in program
    doar*=（double）(day[i]/day[i+1]);
            ^
/in/foo.cc:17:19: error: stray '\357' in program
    doar*=（double）(day[i]/day[i+1]);
                   ^
/in/foo.cc:17:20: error: stray '\274' in program
    doar*=（double）(day[i]/day[i+1]);
                    ^
/in/foo.cc:17:21: error: stray '\211' in program
    doar*=（double）(day[i]/day[i+1]);
                     ^