Compilare: user.cpp: In function ‘int main()’: user.cpp:35:53: warning: variable ‘mij1’ set but not used [-Wunused-but-set-variable] int l,i,nrimp=0,cif1=0,cif2=0,l1,l2,aux,care=1,u1=1,mij1,mij2,u=1,nc=0,j; ^ user.cpp:35:58: warning: variable ‘mij2’ set but not used [-Wunused-but-set-variable] int l,i,nrimp=0,cif1=0,cif2=0,l1,l2,aux,care=1,u1=1,mij1,mij2,u=1,nc=0,j; ^ user.cpp:103:1: warning: ‘l2’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (l2>l1) ^ user.cpp:103:1: warning: ‘l1’ may be used uninitialized in this function [-Wmaybe-uninitialized]