Compilare: user.c: In function ‘update’: user.c:6:37: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] for (;poz <= n;poz = poz + (poz & (poz - 1) ^ poz)) ^ user.c: In function ‘querry’: user.c:13:33: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] for(; poz; poz = poz - (poz & (poz - 1) ^ poz)) ^ user.c: In function ‘main’: user.c:37:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &n, &m); ^ user.c:39:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &a); ^ user.c:44:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &op); ^ user.c:46:19: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &a, &b); ^ user.c:53:19: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &a); ^