Compilare: main.cpp: In function 'void apm()': main.cpp:59:22: warning: 'bestj' may be used uninitialized in this function [-Wmaybe-uninitialized] m[cnt].second=bestj; ~~~~~~~~~~~~~^~~~~~ main.cpp:57:31: warning: 'besti' may be used uninitialized in this function [-Wmaybe-uninitialized] unionfind(besti,bestj); ^