Compilare: user.cpp: In function ‘int main()’: user.cpp:110:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<r.size();i++) ^ user.cpp:36:27: warning: variable ‘lh’ set but not used [-Wunused-but-set-variable] int a,b,c=1,i,j,k,l=1,lh,aux,saux,nod,snod,actual,colt,maxl=0,maxc=0,minim=999; ^ user.cpp:36:55: warning: ‘colt’ may be used uninitialized in this function [-Wmaybe-uninitialized] int a,b,c=1,i,j,k,l=1,lh,aux,saux,nod,snod,actual,colt,maxl=0,maxc=0,minim=999; ^