Compilare: user.c: In function ‘update’: user.c:8:26: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] for (;poz<=n;poz+=poz&(poz-1)^poz) ^ user.c: In function ‘query’: user.c:15:23: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] for (;poz;poz-=poz&(poz-1)^poz) ^ user.c: In function ‘main’: user.c:24:10: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&n,&m); ^ user.c:26:14: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&c); ^ user.c:31:14: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d%d",&tip,&a,&b); ^