Compilare: user.c: In function ‘main’: user.c:26:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d" ,&t); ^ user.c:32:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d" ,&n,&p[0]); ^ user.c:76:68: warning: ‘z’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(fout,"%d %d %d %d %d\n" ,nr,x,y,z,n-x*p[0]-y*p[1]-z*p[2]); ^