Compilare: main.cpp: In function 'int mn()': main.cpp:3:13: warning: overflow in implicit constant conversion [-Woverflow] #define inf 10e9 ^ main.cpp:48:12: note: in expansion of macro 'inf' int mx=inf,indx; ^~~ main.cpp:52:12: warning: 'indx' may be used uninitialized in this function [-Wmaybe-uninitialized] return indx; ^~~~ main.cpp: In function 'void prim(int)': main.cpp:67:15: warning: 'indx' may be used uninitialized in this function [-Wmaybe-uninitialized] mst[u]=true; ~~~~~~^~~~~