Compilare: user.cpp: In function ‘int main()’: user.cpp:23:11: warning: unused variable ‘t’ [-Wunused-variable] { int i,j,t,cost,ind,pos,actx,acty,acts,sol,res,mxact; ^ user.cpp:23:22: warning: unused variable ‘pos’ [-Wunused-variable] { int i,j,t,cost,ind,pos,actx,acty,acts,sol,res,mxact; ^ user.cpp:23:31: warning: variable ‘acty’ set but not used [-Wunused-but-set-variable] { int i,j,t,cost,ind,pos,actx,acty,acts,sol,res,mxact; ^ user.cpp:23:49: warning: unused variable ‘mxact’ [-Wunused-variable] { int i,j,t,cost,ind,pos,actx,acty,acts,sol,res,mxact; ^