foo.cc: In function 'void pushtag(long long int)':
foo.cc:25:43: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   25 |         int l = lc[x], r = rc[x], mid = l + r >> 1;
      |                                         ~~^~~
foo.cc: In function 'void build(long long int, long long int, long long int)':
foo.cc:84:21: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   84 |         int mid = l + r >> 1;
      |                   ~~^~~
foo.cc: In function 'void edit1(long long int, long long int, long long int, double, double)':
foo.cc:103:25: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  103 |         int mid = lc[x] + rc[x] >> 1;
      |                   ~~~~~~^~~~~~~
foo.cc: In function 'void edit2(long long int, long long int, long long int)':
foo.cc:126:25: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  126 |         int mid = lc[x] + rc[x] >> 1;
      |                   ~~~~~~^~~~~~~
foo.cc: In function 'void query(long long int, long long int, long long int)':
foo.cc:149:25: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  149 |         int mid = lc[x] + rc[x] >> 1;
      |                   ~~~~~~^~~~~~~

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