Compilare: user.cpp: In function ‘int main()’: user.cpp:13: warning: unused variable ‘s’ user.cpp:13: warning: unused variable ‘nrt’ user.cpp:13: warning: unused variable ‘j’ user.cpp: In function ‘int cauta(int, int)’: user.cpp:50: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:72: warning: control reaches end of non-void function