Compilare: user.cpp: In function ‘void add(int, int, int)’: user.cpp:11: warning: unused variable ‘l’ user.cpp:11: warning: unused variable ‘t’ user.cpp: In function ‘int main()’: user.cpp:65: warning: unused variable ‘j’ user.cpp:65: warning: unused variable ‘k’ user.cpp: In function ‘void calc(int)’: user.cpp:39: warning: array subscript is below array bounds user.cpp: In function ‘void calc2(int)’: user.cpp:59: warning: array subscript is below array bounds