/in/ex5.cpp: In function 'int main(int, char**)':
/in/ex5.cpp:64:14: error: unused parameter 'argc' [-Werror=unused-parameter]
 int main(int argc, char *argv[])
              ^~~~
/in/ex5.cpp:64:31: error: unused parameter 'argv' [-Werror=unused-parameter]
 int main(int argc, char *argv[])
                               ^
cc1plus: all warnings being treated as errors