Eroare de compilare: user.c: In function ‘main’: user.c:15:6: error: ‘i’ undeclared (first use in this function) for(i=1;i<=T;i++) ^ user.c:15:6: note: each undeclared identifier is reported only once for each function it appears in user.c:7:9: warning: unused variable ‘j’ [-Wunused-variable] int T, j; ^ user.c:13:8: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &T); ^ user.c:17:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d%d%d%d", &A, &B, &X_i, &Y_i); ^