CS2
Week 5: Algorithm
analysis, searching,
sorting
9
Program analysis
nAnother reason why programmers like big O is that it can often be concluded from the control structures in a program
nE.g. , no loops or
recursion – O(1)
nA single counting
loop or recursion that simplifies by a fixed
amount – linear n
nA double nested FOR
loop – ?
nRecursion that
divides by a fixed constant - ?