Eroare de compilare: user.c: In function ‘main’: user.c:36:8: error: ‘m’ undeclared (first use in this function) v = m + inv % m; ^ user.c:36:8: note: each undeclared identifier is reported only once for each function it appears in user.c:36:12: error: ‘inv’ undeclared (first use in this function) v = m + inv % m; ^ user.c:31:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%*c%d", &a, &b); ^