showroom.cpp: In function `int main()': showroom.cpp:87: warning: assignment to non-pointer type `char' from NULL showroom.cpp:87: warning: argument to non-pointer type `char' from NULL showroom.cpp:96: warning: assignment to non-pointer type `char' from NULL showroom.cpp:96: warning: argument to non-pointer type `char' from NULL showroom.cpp:110: warning: comparison between signed and unsigned integer expressions showroom.cpp:72: warning: unused variable `int q' /tmp/ccXQclfH.o(.text+0x703): In function `main': : the `gets' function is dangerous and should not be used.