/in/foo.cc: In function 'void tupd(int&, int, int)':
/in/foo.cc:10:10: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int m=l+r>>1;
         ~^~
/in/foo.cc: In function 'long long int tqry(int, int, int)':
/in/foo.cc:17:9: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  int m=l+r>>1;
        ~^~
/in/foo.cc: In function 'void upd(int, int, int)':
/in/foo.cc:23:9: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  int m=l+r>>1;
        ~^~
/in/foo.cc: In function 'long long int qry(int, int, int)':
/in/foo.cc:28:9: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  int m=l+r>>1;
        ~^~