ex1-v1.bash : res=263
	time: 1:28.00 real, 62.50 user, 31.11 sys
	context-switch:	5860+165603, page-faults: 0+7574999

ex1.bash : res=263
	time: 0:00.37 real, 0.37 user, 0.00 sys
	context-switch:	5+1, page-faults: 0+321

ex1-c : res=263
	time: 0:00.00 real, 0.00 user, 0.00 sys
	context-switch:	0+1, page-faults: 0+149

ex2.bash : res=1680
	time: 0:06.50 real, 6.43 user, 0.03 sys
	context-switch:	52+14, page-faults: 0+2873