Compilare: user.cpp: In function ‘void Going(int, int)’: user.cpp:11:12: warning: unused variable ‘j’ [-Wunused-variable] int x,y,i,j; ^ user.cpp: In function ‘void Going2(int, int)’: user.cpp:44:10: warning: unused variable ‘i’ [-Wunused-variable] int x,y,i,j; ^ user.cpp:44:12: warning: unused variable ‘j’ [-Wunused-variable] int x,y,i,j; ^ user.cpp: In function ‘int main()’: user.cpp:72:13: warning: unused variable ‘x’ [-Wunused-variable] int i,j,x,ii,p,y; ^ user.cpp:72:15: warning: unused variable ‘ii’ [-Wunused-variable] int i,j,x,ii,p,y; ^ user.cpp:72:18: warning: variable ‘p’ set but not used [-Wunused-but-set-variable] int i,j,x,ii,p,y; ^ user.cpp:72:20: warning: unused variable ‘y’ [-Wunused-variable] int i,j,x,ii,p,y; ^ user.cpp:73:16: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen(in); ^ user.cpp:74:17: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen(out); ^ user.cpp:75:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:78:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&A[i][j]); ^