ex1.bash : valid=182/251 time: 0:00.06 real, 0.06 user, 0.00 sys ex1-c : valid=182/251 time: 0:00.00 real, 0.00 user, 0.00 sys ex2.bash : valid=109/251 time: 0:00.16 real, 0.16 user, 0.00 sys ex2-c : valid=109/251 time: 0:00.00 real, 0.00 user, 0.00 sys