ita; add ASSERT_EQUALS to test.h
ita; exercise 2.3.5 - binary search
ita; exercise 2.3.6 - musings on insertion sort
ita; exercise 2.3.7 - find (b, c) such that b + c = x
ita; refactored a part of the build
ita; remove unused macro from test.h
ita; oops. fix an error in 2.3.2
ita; problem 2.1 - merge/insertion sort
ita; problem 2.2 - bubble-sort
ita; problem 2.3 - horner's rule
ita; problem 2.4 - number of inversions
ita; exercise 3.1.1 - max(f,g) = ϴ(f+g)
ita; exercise 3.1.2 - (n + a)^b
ita; exercise 3.1.3 - meaningless statement
ita; exercise 3.1.4 - 2^n and 2^{2n}
ita; exercise 3.1.5 - ϴ = O ∩ Ω
ita; exercise 3.1.6 - more greek letters
ita; exercise 3.1.7 - o ∩ ω = ∅
ita; exercise 3.1.8 - functions of >2 args
ita; exercise 3.2.1 - monotonically increasing fns