Compilare: user.cpp: In function ‘void update(int, int)’: user.cpp:8:31: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] for (;poz<=n;poz=poz+(poz &(poz-1)^poz)) ^ user.cpp: In function ‘int querry(int)’: user.cpp:15:27: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] for(;poz;poz=poz-(poz &(poz-1)^poz)) ^ user.cpp: In function ‘int main()’: user.cpp:39:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&n,&m); ^ user.cpp:41:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&a); ^ user.cpp:46:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&tip); ^ user.cpp:48:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&a,&b); ^ user.cpp:55:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&a); ^