Compilare: user.cpp: In function 'int add(int, int, int)': user.cpp:30: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int verif(int, int, int, int, int, int)': user.cpp:44: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int main()': user.cpp:88: warning: unused variable 'j' user.cpp:88: warning: unused variable 'p' user.cpp:88: warning: unused variable 'q' user.cpp: In function 'int verif(int, int, int, int, int, int)': user.cpp:58: warning: control reaches end of non-void function