Compilare: user.c: In function ‘main’: user.c:68:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d%d\n",&p,&n,&m); ^ user.c:69:10: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(sir,12,fin); ^ user.c:29:15: warning: ‘ymin’ may be used uninitialized in this function [-Wmaybe-uninitialized] seen[x][y]=1; ^ user.c:48:32: note: ‘ymin’ was declared here int i,j,val,minim=INF,xmin,ymin; ^ user.c:29:15: warning: ‘xmin’ may be used uninitialized in this function [-Wmaybe-uninitialized] seen[x][y]=1; ^ user.c:48:27: note: ‘xmin’ was declared here int i,j,val,minim=INF,xmin,ymin; ^