Compilare: main.cpp: In function 'int main()': main.cpp:55:14: warning: 'sp' may be used uninitialized in this function [-Wmaybe-uninitialized] if(sol[sp] != sol[fp]) ~~~~~~^ main.cpp:49:19: warning: 'fp' may be used uninitialized in this function [-Wmaybe-uninitialized] if(x != 2 && i != fp) ~~~~~~~^~~~~~~~~~ main.cpp:46:34: warning: 'poz' may be used uninitialized in this function [-Wmaybe-uninitialized] cout << "1 2 " << poz << " " << i << "\n" << flush; ^~~