Compilare: user.cpp: In function ‘void dynamic_opt()’: user.cpp:58:14: warning: unused variable ‘c1’ [-Wunused-variable] int li=0,c1,c2,i,j,lm[N][N],ii,jj; ^ user.cpp:58:17: warning: unused variable ‘c2’ [-Wunused-variable] int li=0,c1,c2,i,j,lm[N][N],ii,jj; ^ user.cpp: In function ‘void dynamic()’: user.cpp:21:18: warning: ‘c2’ may be used uninitialized in this function [-Wmaybe-uninitialized] int li=-1,c1,c2,i,j,lm[N][N],ii,jj; ^ user.cpp:48:14: warning: ‘c1’ may be used uninitialized in this function [-Wmaybe-uninitialized] for(ii=c1-li+1;ii<=c1;ii++) ^