added c programs
added conditional and precedence examples
Merge branch 'lab' of https://github.com/gurpartap007/cpractice
added merge

Conflicts:
	sanfoundry/a.out
	sanfoundry/arithmetic_operators1_1.c
	sanfoundry/arithmetic_operators1_2.c
	sanfoundry/bitwise_1_3##.c
	sanfoundry/bitwise_1_4##.c
	sanfoundry/bitwise_1_6##.c
	sanfoundry/bitwise_1_7##.c
	sanfoundry/bitwise_1_8##.c
	sanfoundry/bitwise_2_1##.c
	sanfoundry/bitwise_2_2##.c
	sanfoundry/bitwise_2_4###.c
	sanfoundry/bitwise_2_5###.c
	sanfoundry/bitwise_2_6###.c
	sanfoundry/bitwise_2_7###.c
	sanfoundry/bitwise_2_8###.c
	sanfoundry/constants_1_8.c
	sanfoundry/relational_logical_operators_4.c
	sanfoundry/relational_logical_operators_7.c
	sanfoundry/variable_name_2_3.c
added C primer examples
added pointers examples