Compilare: user.cpp: In function 'int add(int, int, int)': user.cpp:29: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int verif(int, int, int, int, int, int)': user.cpp:43: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int main()': user.cpp:87: warning: unused variable 'j' user.cpp:87: warning: unused variable 'p' user.cpp:87: warning: unused variable 'q' user.cpp: In function 'int verif(int, int, int, int, int, int)': user.cpp:57: warning: control reaches end of non-void function