Compilare: user.cpp: In function 'void cata_solve(int*, int*)': user.cpp:112: warning: unused variable 'ng' user.cpp: In function 'void gen2()': user.cpp:417: warning: unused variable 'TO' user.cpp: In function 'int main()': user.cpp:483: warning: unused variable 'i' user.cpp:483: warning: unused variable 'j' user.cpp:483: warning: unused variable 't' /tmp/ccPRKFID.o: In function `main': user.cpp:(.text+0x1289): warning: the `gets' function is dangerous and should not be used.