Compilare: user.cpp: In function ‘int main()’: user.cpp:13:9: warning: variable ‘matrix’ set but not used [-Wunused-but-set-variable] int matrix[n+1][n+1]; ^ user.cpp:14:9: warning: variable ‘matrix2’ set but not used [-Wunused-but-set-variable] int matrix2[n+1][n+1]; ^ user.cpp:24:9: warning: variable ‘tomb’ set but not used [-Wunused-but-set-variable] int tomb[n+1]; ^ user.cpp:51:9: warning: unused variable ‘current’ [-Wunused-variable] int current; ^