Compilare: user.cpp: In function 'int insrt(char*)': user.cpp:23: warning: no return statement in function returning non-void user.cpp: In function 'void read()': user.cpp:30: warning: unused variable 'i' user.cpp:30: warning: unused variable 'j' user.cpp:35: warning: unused variable 'nr' user.cpp: In function 'int insrt(char*)': user.cpp:23: warning: control reaches end of non-void function /tmp/cc372emr.o: In function `read()': user.cpp:(.text+0x2e): warning: the `gets' function is dangerous and should not be used.