Compilare: user.cpp: In function ‘int main()’: user.cpp:74:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<aux.size();++j) { ^ user.cpp:98:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<aux.size();++j) { ^ user.cpp:32:27: warning: variable ‘best’ set but not used [-Wunused-but-set-variable] int i,st,dr,lastplaced=0,best,xd,p,j,dir,last; ^ user.cpp:32:39: warning: unused variable ‘dir’ [-Wunused-variable] int i,st,dr,lastplaced=0,best,xd,p,j,dir,last; ^ user.cpp:32:43: warning: variable ‘last’ set but not used [-Wunused-but-set-variable] int i,st,dr,lastplaced=0,best,xd,p,j,dir,last; ^