Compilare: user.cpp: In function ‘void fill(int, int (*)[255])’: user.cpp:15:9: warning: unused variable ‘i’ [-Wunused-variable] int i,j,k; ^ user.cpp:15:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,k; ^ user.cpp: In function ‘int solve()’: user.cpp:32:19: warning: unused variable ‘r’ [-Wunused-variable] int i,j,t,aux,r,au; ^ user.cpp: In function ‘int main()’: user.cpp:58:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,k,r,a1,b1,aa,bb,c; ^ user.cpp:58:13: warning: unused variable ‘k’ [-Wunused-variable] int i,j,k,r,a1,b1,aa,bb,c; ^ user.cpp:58:17: warning: unused variable ‘a1’ [-Wunused-variable] int i,j,k,r,a1,b1,aa,bb,c; ^ user.cpp:58:20: warning: unused variable ‘b1’ [-Wunused-variable] int i,j,k,r,a1,b1,aa,bb,c; ^ user.cpp:58:23: warning: unused variable ‘aa’ [-Wunused-variable] int i,j,k,r,a1,b1,aa,bb,c; ^ user.cpp:58:26: warning: unused variable ‘bb’ [-Wunused-variable] int i,j,k,r,a1,b1,aa,bb,c; ^ user.cpp:58:29: warning: unused variable ‘c’ [-Wunused-variable] int i,j,k,r,a1,b1,aa,bb,c; ^