Compilare: user.cpp: In function ‘int main()’: user.cpp:14:25: warning: variable ‘max’ set but not used [-Wunused-but-set-variable] int n,k,d,num,i,j,x,max,nr,ohio; ^ user.cpp:16:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d %d",&n,&k,&d); ^ user.cpp:20:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&nr); ^ user.cpp:21:51: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for (j=1; j<=nr; j++) {fscanf(f,"%d",&num); a[i][num]=1;} ^