/in/foo.cc:30:12: error: stray '\357' in program
    res += 1；
            ^
/in/foo.cc:30:13: error: stray '\274' in program
    res += 1；
             ^
/in/foo.cc:30:14: error: stray '\233' in program
    res += 1；
              ^
/in/foo.cc: In function 'void klskr()':
/in/foo.cc:31:13: error: expected ';' before 'f'
             f[fa] = fb;// 合并a b
             ^