Compilare: user.cpp:22:6: warning: ISO C++ forbids declaration of ‘main’ with no type [-Wreturn-type] main() ^ user.cpp: In function ‘long int suma(int)’: user.cpp:14:12: warning: ‘s’ may be used uninitialized in this function [-Wmaybe-uninitialized] return s; ^ user.cpp: In function ‘int main()’: user.cpp:19:14: warning: ‘s’ may be used uninitialized in this function [-Wmaybe-uninitialized] return s%p; ^ user.cpp:11:10: note: ‘s’ was declared here long s; ^