Compilare: user.c: In function ‘main’: user.c:15:17: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(a[0]<a[2]&&a[1]<a[3]||a[0]<a[3]&&a[1]<a[2]) ^ user.c:19:17: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(a[0]<a[2]&&a[1]<a[4]||a[0]<a[4]&&a[1]<a[2]) ^ user.c:23:17: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(a[0]<a[4]&&a[1]<a[3]||a[0]<a[3]&&a[1]<a[4]) ^ user.c:9:7: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &n); ^ user.c:13:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &a[j]); ^