/in/foo.cc: In function 'int main()':
/in/foo.cc:104:49: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'long long int*' [-Wformat=]
         for (int i=1; i<=m; i++) scanf("%d", a+i);
                                              ~~~^
/in/foo.cc:105:14: warning: variable 'anst' set but not used [-Wunused-but-set-variable]
         bint anst=0;
              ^~~~