/in/fileReverse.c: In function 'main':
/in/fileReverse.c:13:10: error: unused variable 'rev' [-Werror=unused-variable]
     char rev[105];
          ^~~
/in/fileReverse.c:12:10: error: unused variable 'ori' [-Werror=unused-variable]
     char ori[105];
          ^~~
/in/fileReverse.c:6:14: error: unused parameter 'argc' [-Werror=unused-parameter]
 int main(int argc,char *argv[]){
              ^~~~
cc1: all warnings being treated as errors