/in/foo.cc: In function 'void buildtree(long long int, long long int, long long int)':
/in/foo.cc:31:10: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  LL mid=l+r>>1;
          ^
/in/foo.cc: In function 'void pushdown(long long int)':
/in/foo.cc:39:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  LL mid=t[x].l+t[x].r>>1;
               ^

BrokenPipeError(32, 'Broken pipe')