Compilare: user.cpp: In function ‘void Read()’: user.cpp:8:7: warning: unused variable ‘i’ [-Wunused-variable] { int i,dim; char c; ^ user.cpp:8:9: warning: unused variable ‘dim’ [-Wunused-variable] { int i,dim; char c; ^ user.cpp:8:19: warning: unused variable ‘c’ [-Wunused-variable] { int i,dim; char c; ^ user.cpp: In function ‘void Solve()’: user.cpp:33:26: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long long int’ [-Wformat=] fprintf(g,"%I64d\n",sol); ^