Compilare: user.c: In function ‘main’: user.c:81:8: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(infile, "%d %d", &n, &m); ^ user.c:88:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(infile, "%d %d", &u, &v); ^ user.c:111:10: warning: ‘count’ may be used uninitialized in this function [-Wmaybe-uninitialized] count++; ^