Compilare: main.c: In function 'main': main.c:38:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &t); ^~~~~~~~~~~~~~~~~~~~~ main.c:40:9: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &n, &m); ^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:42:13: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &a[j], &b[j]); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~