Compilare: user.cpp: In function ‘int main()’: user.cpp:28:23: warning: unused variable ‘elem’ [-Wunused-variable] int n,m,k,i,j,cer,elem,nr=0,min=2000000000,dmax,dy,dx,ax,ay,bx,by,sldt,num; ^ user.cpp:28:59: warning: variable ‘ax’ set but not used [-Wunused-but-set-variable] int n,m,k,i,j,cer,elem,nr=0,min=2000000000,dmax,dy,dx,ax,ay,bx,by,sldt,num; ^ user.cpp:28:62: warning: variable ‘ay’ set but not used [-Wunused-but-set-variable] int n,m,k,i,j,cer,elem,nr=0,min=2000000000,dmax,dy,dx,ax,ay,bx,by,sldt,num; ^ user.cpp:28:65: warning: variable ‘bx’ set but not used [-Wunused-but-set-variable] int n,m,k,i,j,cer,elem,nr=0,min=2000000000,dmax,dy,dx,ax,ay,bx,by,sldt,num; ^ user.cpp:28:68: warning: variable ‘by’ set but not used [-Wunused-but-set-variable] int n,m,k,i,j,cer,elem,nr=0,min=2000000000,dmax,dy,dx,ax,ay,bx,by,sldt,num; ^ user.cpp:26:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("rascoala.in","r",stdin); ^ user.cpp:27:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("rascoala.out","w",stdout); ^ user.cpp:29:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&cer); ^ user.cpp:30:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&n,&m,&k); ^ user.cpp:33:40: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&v[(i-1)*m+j].s); ^