Compilare: user.cpp: In function ‘int main()’: user.cpp:6:5: warning: ‘p’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (b == 0) return 1; ^ user.cpp:26:18: note: ‘p’ was declared here long long n, p; ^ user.cpp:22:15: warning: ‘n’ may be used uninitialized in this function [-Wmaybe-uninitialized] return (a * aux) % mod; ^ user.cpp:26:15: note: ‘n’ was declared here long long n, p; ^