do it quickly

1. This question is about Big-O notation and time complexity. Consider the following phrases: executes in quadratic time executes in linear time executes in log-linear time executes in constant time executes in logarithmic time executes in exponential time executes in cubic time a) Making use of the above phrases, state the meaning of EACH of the following expressions in the Big-O notation: i) executes in O(na) time ii) executes in O(n log n) time iii) executes in O(1) time