/in/foo.cc:48:30: error: stray '\342' in program
             while (ch[i][j]!=‘0‘&&ch[i][j]!=‘1‘)
                              ^
/in/foo.cc:48:31: error: stray '\200' in program
             while (ch[i][j]!=‘0‘&&ch[i][j]!=‘1‘)
                               ^
/in/foo.cc:48:32: error: stray '\230' in program
             while (ch[i][j]!=‘0‘&&ch[i][j]!=‘1‘)
                                ^
/in/foo.cc:48:34: error: stray '\342' in program
             while (ch[i][j]!=‘0‘&&ch[i][j]!=‘1‘)
                                  ^
/in/foo.cc:48:35: error: stray '\200' in program
             while (ch[i][j]!=‘0‘&&ch[i][j]!=‘1‘)
                                   ^
/in/foo.cc:48:36: error: stray '\230' in program
             while (ch[i][j]!=‘0‘&&ch[i][j]!=‘1‘)
                                    ^
/in/foo.cc:48:49: error: stray '\342' in program
             while (ch[i][j]!=‘0‘&&ch[i][j]!=‘1‘)
                                                 ^
/in/foo.cc:48:50: error: stray '\200' in program
             while (ch[i][j]!=‘0‘&&ch[i][j]!=‘1‘)
                                                  ^
/in/foo.cc:48:51: error: stray '\230' in program
             while (ch[i][j]!=‘0‘&&ch[i][j]!=‘1‘)
                                                   ^
/in/foo.cc:48:53: error: stray '\342' in program
             while (ch[i][j]!=‘0‘&&ch[i][j]!=‘1‘)
                                                     ^
/in/foo.cc:48:54: error: stray '\200' in program
             while (ch[i][j]!=‘0‘&&ch[i][j]!=‘1‘)
                                                      ^
/in/foo.cc:48:55: error: stray '\230' in program
             while (ch[i][j]!=‘0‘&&ch[i][j]!=‘1‘)
                                                       ^
/in/foo.cc:50:30: error: stray '\342' in program
             a[i][j]=ch[i][j]-‘0‘;
                              ^
/in/foo.cc:50:31: error: stray '\200' in program
             a[i][j]=ch[i][j]-‘0‘;
                               ^
/in/foo.cc:50:32: error: stray '\230' in program
             a[i][j]=ch[i][j]-‘0‘;
                                ^
/in/foo.cc:50:34: error: stray '\342' in program
             a[i][j]=ch[i][j]-‘0‘;
                                  ^
/in/foo.cc:50:35: error: stray '\200' in program
             a[i][j]=ch[i][j]-‘0‘;
                                   ^
/in/foo.cc:50:36: error: stray '\230' in program
             a[i][j]=ch[i][j]-‘0‘;
                                    ^