Compilare: user.cpp: In function ‘void umplere()’: user.cpp:70:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<dragon.size()) ^ user.cpp: In function ‘int drum(int, int)’: user.cpp:102:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(j<path.size()) ^ user.cpp:120:1: warning: control reaches end of non-void function [-Wreturn-type] } ^