foo.cc: In member function 'void Segtree::build(long long int, long long int, long long int)':
foo.cc:14:29: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   14 |         #define mid (tr[p].L+tr[p].R>>1)
      |                      ~~~~~~~^~~~~~~~
foo.cc:36:30: note: in expansion of macro 'mid'
   36 |                 build(p<<1,l,mid);
      |                              ^~~
foo.cc:14:29: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   14 |         #define mid (tr[p].L+tr[p].R>>1)
      |                      ~~~~~~~^~~~~~~~
foo.cc:37:30: note: in expansion of macro 'mid'
   37 |                 build(p<<1|1,mid+1,r);
      |                              ^~~
foo.cc: In member function 'void Segtree::upd_bian(long long int, long long int)':
foo.cc:14:29: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   14 |         #define mid (tr[p].L+tr[p].R>>1)
      |                      ~~~~~~~^~~~~~~~
foo.cc:42:23: note: in expansion of macro 'mid'
   42 |                 if(x<=mid)upd_bian(p<<1,x);
      |                       ^~~
foo.cc: In member function 'void Segtree::upd_dian(long long int, long long int)':
foo.cc:14:29: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   14 |         #define mid (tr[p].L+tr[p].R>>1)
      |                      ~~~~~~~^~~~~~~~
foo.cc:51:23: note: in expansion of macro 'mid'
   51 |                 if(x<=mid)upd_dian(p<<1,x);
      |                       ^~~
foo.cc: In member function 'Segtree::node Segtree::query(long long int, long long int, long long int)':
foo.cc:14:29: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   14 |         #define mid (tr[p].L+tr[p].R>>1)
      |                      ~~~~~~~^~~~~~~~
foo.cc:57:24: note: in expansion of macro 'mid'
   57 |                 if(qr<=mid)return query(p<<1,ql,qr);
      |                        ^~~
foo.cc:14:29: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   14 |         #define mid (tr[p].L+tr[p].R>>1)
      |                      ~~~~~~~^~~~~~~~
foo.cc:58:23: note: in expansion of macro 'mid'
   58 |                 if(ql>mid)return query(p<<1|1,ql,qr);
      |                       ^~~
foo.cc:14:29: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   14 |         #define mid (tr[p].L+tr[p].R>>1)
      |                      ~~~~~~~^~~~~~~~
foo.cc:59:41: note: in expansion of macro 'mid'
   59 |                 return Up(query(p<<1,ql,mid),query(p<<1|1,mid+1,qr));
      |                                         ^~~
foo.cc:14:29: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   14 |         #define mid (tr[p].L+tr[p].R>>1)
      |                      ~~~~~~~^~~~~~~~
foo.cc:59:59: note: in expansion of macro 'mid'
   59 |                 return Up(query(p<<1,ql,mid),query(p<<1|1,mid+1,qr));
      |                                                           ^~~

Found 20 testcases.
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