/in/foo.cc: In function 'void RMQ_ST()':
/in/foo.cc:28:36: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   28 |         for (int i = 1; i + (1 << j-1) <= n; i++)
      |                                   ~^~
/in/foo.cc:29:54: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   29 |             fa[i][j] = max(fa[i][j-1],fa[i + (1 << j - 1)][j-1]);
      |                                                    ~~^~~