Compilare: user.cpp: In function ‘void Solve()’: user.cpp:13:12: warning: unused variable ‘t’ [-Wunused-variable] { int i,j,t,l1,l2,sum=0; ^ user.cpp: In function ‘int main()’: user.cpp:45:7: warning: unused variable ‘i’ [-Wunused-variable] { int i,t,nr,len; ^ user.cpp:45:11: warning: unused variable ‘nr’ [-Wunused-variable] { int i,t,nr,len; ^ user.cpp:45:14: warning: unused variable ‘len’ [-Wunused-variable] { int i,t,nr,len; ^