Compilare: main.c: In function 'get_list': main.c:76:13: warning: array subscript has type 'char' [-Wchar-subscripts] if(v[cell->value.a] + v[cell->value.b] + v[cell->value.c] == sum) { ^ main.c:76:32: warning: array subscript has type 'char' [-Wchar-subscripts] if(v[cell->value.a] + v[cell->value.b] + v[cell->value.c] == sum) { ^ main.c:76:51: warning: array subscript has type 'char' [-Wchar-subscripts] if(v[cell->value.a] + v[cell->value.b] + v[cell->value.c] == sum) { ^ main.c: In function 'add_hash': main.c:87:12: warning: array subscript has type 'char' [-Wchar-subscripts] p = f(v[value.a] + v[value.b] + v[value.c]); ^ main.c:87:25: warning: array subscript has type 'char' [-Wchar-subscripts] p = f(v[value.a] + v[value.b] + v[value.c]); ^ main.c:87:38: warning: array subscript has type 'char' [-Wchar-subscripts] p = f(v[value.a] + v[value.b] + v[value.c]); ^ main.c: In function 'main': main.c:133:48: warning: array subscript has type 'char' [-Wchar-subscripts] v[i], v[j], v[k], v[res->a], v[res->b], v[res->c]); ^ main.c:133:59: warning: array subscript has type 'char' [-Wchar-subscripts] v[i], v[j], v[k], v[res->a], v[res->b], v[res->c]); ^ main.c:133:70: warning: array subscript has type 'char' [-Wchar-subscripts] v[i], v[j], v[k], v[res->a], v[res->b], v[res->c]); ^ main.c:114:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d", &n, &s); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:116:9: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d", &v[i]); ^~~~~~~~~~~~~~~~~~~~~~~