foo.cc: In member function 'void SparseTable::init(int, const VI&)':
foo.cc:24:61: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   24 |                 ST[i][j] = max(ST[i][j - 1], ST[i + (1 << j - 1)][j - 1]);
      |                                                           ~~^~~

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