Compilare: user.cpp: In function ‘int main()’: user.cpp:30:35: warning: ‘y’ is used uninitialized in this function [-Wuninitialized] unsigned long long x, y, besta = y, bestb = 0; ^ user.cpp: In function ‘long long unsigned int cautbin(long long unsigned int, long long unsigned int, long long unsigned int)’: user.cpp:26:9: warning: ‘best’ may be used uninitialized in this function [-Wmaybe-uninitialized] return best; ^ user.cpp: In function ‘int main()’: user.cpp:36:9: warning: ‘best’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (a + b < besta + bestb) { ^