Compilare: user.cpp: In function ‘int elog(int, int)’: user.cpp:24:29: warning: ‘s’ may be used uninitialized in this function [-Wmaybe-uninitialized] s=1ll*(s+p)%n; ^ user.cpp: In function ‘int main()’: user.cpp:24:29: warning: ‘s’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:20:17: note: ‘s’ was declared here int p=a,s; ^