ec3.cpp:43:10: warning: unused variable 'q' [-Wunused-variable]
    int* q = new int;
         ^
ec3.cpp:11:5: warning: array index 10 is past the end of the array (which contains 10 elements) [-Warray-bounds]
    a[10] = 0;
    ^ ~~
ec3.cpp:8:5: note: array 'a' declared here
    char a[10];
    ^
ec3.cpp:66:1: warning: control may reach end of non-void function [-Wreturn-type]
}
^
3 warnings generated.