ec3.cpp: In function ‘int main(int, char**)’:
ec3.cpp:8:10: warning: variable ‘a’ set but not used [-Wunused-but-set-variable]
     char a[10];
          ^
ec3.cpp:43:10: warning: unused variable ‘q’ [-Wunused-variable]
     int* q = new int;
          ^
ec3.cpp: In function ‘bool g(int&)’:
ec3.cpp:66:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^