/in/foo.cc: In function 'void build(int&, int, int, int)':
/in/foo.cc:78:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
     int mid = x + y >> 1;
               ~~^~~
/in/foo.cc: In function 'void LCP(int, int)':
/in/foo.cc:127:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
         mid = min + max >> 1;
               ~~~~^~~~~