Compilare: main.c: In function 'main': main.c:79:2: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%lu", &nr_teste); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:84:3: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%lu%lu", &n, &nr_relatii); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:91:4: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d", &a, &b, &c); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~