Compilare: main.c: In function 'main': main.c:35:3: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &n ); ^~~~~~~~~~~~~~~~~~~~~~~ main.c:38:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d", &a[i], &b[i] ); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c: In function 'cautSol': main.c:28:10: warning: 'sol' may be used uninitialized in this function [-Wmaybe-uninitialized] return sol; ^~~