/in/foo.cc: In function 'int main()':
/in/foo.cc:11:8: warning: unused variable 'ge' [-Wunused-variable]
    int ge=a&10;
        ^~
/in/foo.cc:13:8: warning: unused variable 'shi' [-Wunused-variable]
    int shi=a%100;
        ^~~
/in/foo.cc:22:8: warning: unused variable 'bai' [-Wunused-variable]
    int bai=a/100;
        ^~~
/in/foo.cc:31:8: warning: unused variable 'bai' [-Wunused-variable]
    int bai=a/1000; 
        ^~~
/in/foo.cc:32:8: warning: unused variable 'qian' [-Wunused-variable]
    int qian=a/10000;
        ^~~~
/in/foo.cc:41:8: warning: unused variable 'bai' [-Wunused-variable]
    int bai=a/10000;
        ^~~
/in/foo.cc:42:8: warning: unused variable 'qian' [-Wunused-variable]
    int qian=a/100000;
        ^~~~
/in/foo.cc:43:8: warning: unused variable 'wan' [-Wunused-variable]
    int wan;
        ^~~
/in/foo.cc:6:6: warning: unused variable 'geshu' [-Wunused-variable]
  int geshu=0;
      ^~~~~