Given an array of integer values, and a target integer number, find the unique pairs of numbers that add up to the target number. The output would be a 2D array of numbers. Make sure the pairs are sorted. Pair with the lowest number are first in the array The numbers within the pair are also sorted For example, given an array of numbers[9, 2, 10, 1, 5, 3, 3] and a target number of 12 your output should be [ [2,10], [3,9] ]

1. which of the following statements are true about routers and routing on the internet. choose two answers. a. protocols ensure that a single path between two computers is established before sending packets over it. b. routers are hierarchical and the "root" router is responsible for communicating to sub-routers the best paths for them to route internet traffic. c. a packet traveling between two computers on the internet may be rerouted many times along the way or even lost or "dropped". d. routers act independently and route packets as they see fit.