Compilare: main.c: In function 'main': main.c:38:17: warning: array subscript has type 'char' [-Wchar-subscripts] gres[t]=i/8; ^ main.c:13:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%c",&v[0]); ^~~~~~~~~~~~~~~~~~~~~~ main.c:17:9: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%c",&v[i]); ^~~~~~~~~~~~~~~~~~~~~~