Compilare: user.cpp: In function ‘bool verif(int, int, int)’: user.cpp:103: warning: suggest parentheses around ‘&&’ within ‘||’ user.cpp: In function ‘int main()’: user.cpp:146: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘int verifica(int, int)’: user.cpp:140: warning: control reaches end of non-void function