Compilare: user.c: In function ‘update’: user.c:7:23: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] for(;poz<=n;poz+=poz&(poz-1)^poz){ ^ user.c: In function ‘query’: user.c:14:20: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] for(;poz;poz-=poz&(poz-1)^poz){ ^ user.c: In function ‘main’: user.c:26:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%d%d",&n,&m); ^ user.c:28:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%d",&d); ^ user.c:32:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%d%d%d",&op,&a,&b); ^