Compilare: main.c: In function 'main': main.c:14:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d%d", &n, &m, &k, &c); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:19:9: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d%d", &operatii[i].l1, &operatii[i].c1, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ &operatii[i].l2, &operatii[i].c2); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~