Compilare: main.c: In function 'main': main.c:13:3: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%d%d", &n, &m); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:15:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%d", &a[i]); ^~~~~~~~~~~~~~~~~~~~~~~~~ main.c:18:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%d", &b[i]); ^~~~~~~~~~~~~~~~~~~~~~~~~