/in/foo.cc: In function 'void min_delete(int)':
/in/foo.cc:33:16: warning: unused variable 't' [-Wunused-variable]
  int lc,rc,min,t;
                ^
/in/foo.cc: In function 'int get_min()':
/in/foo.cc:47:10: warning: unused variable 'i' [-Wunused-variable]
  int res,i;
          ^
/in/foo.cc: In function 'void max_insert(int)':
/in/foo.cc:61:10: warning: unused variable 't' [-Wunused-variable]
  int i,j,t;
          ^
/in/foo.cc: In function 'void max_delete(int)':
/in/foo.cc:73:16: warning: unused variable 't' [-Wunused-variable]
  int lc,rc,max,t ;
                ^
/in/foo.cc: In function 'int get_max()':
/in/foo.cc:87:10: warning: unused variable 'i' [-Wunused-variable]
  int res,i;
          ^