bacan.cpp: In function `int main()': bacan.cpp:16: warning: char format, different type arg (arg 3) bacan.cpp:41: warning: assignment to non-pointer type `char' from NULL bacan.cpp:41: warning: argument to non-pointer type `char' from NULL bacan.cpp:42: warning: assignment to non-pointer type `char' from NULL bacan.cpp:42: warning: argument to non-pointer type `char' from NULL bacan.cpp:14: warning: unused variable `int m' /tmp/ccEE5Od4.o(.text+0x6d): In function `main': : the `gets' function is dangerous and should not be used.