nrpal.cpp: In function `long int sparg(long int, long int)': nrpal.cpp:19: warning: control reaches end of non-void function nrpal.cpp: In function `int main()': nrpal.cpp:52: warning: long int format, different type arg (arg 2) /tmp/cclxwYnh.o(.text+0xa8): In function `main': : the `gets' function is dangerous and should not be used.