Compilare: user.cpp: In function ‘int main()’: user.cpp:37:20: warning: variable ‘bf’ set but not used [-Wunused-but-set-variable] int n,m,i,j,ls,bf,x,ant,y,ma; ^ user.cpp:37:29: warning: unused variable ‘y’ [-Wunused-variable] int n,m,i,j,ls,bf,x,ant,y,ma; ^ user.cpp:37:31: warning: unused variable ‘ma’ [-Wunused-variable] int n,m,i,j,ls,bf,x,ant,y,ma; ^ user.cpp:35:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ttg.in","r",stdin); ^ user.cpp:36:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ttg.out","w",stdout); ^ user.cpp:40:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&m,&n); ^ user.cpp:43:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&ls); ^ user.cpp:47:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&x); ^ user.cpp:60:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&qu[i]); ^