Compilare: main.c: In function 'main': main.c:14:3: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d", &n, &m, &p); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:23:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &v[0]); ^~~~~~~~~~~~~~~~~~~~~~~~ main.c:27:7: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &v[j]); ^~~~~~~~~~~~~~~~~~~~~~~~