Compilare: main.c: In function 'main': main.c:34:3: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d", &n, &m ); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:36:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &a[i] ); ^~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:38:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &b[i] ); ^~~~~~~~~~~~~~~~~~~~~~~~~~