a local climate researcher would like some help with their climate data analysis. they would like a program to help them identify the hottest and coldest cities in various climate zones. they have temperature data for the major u. s. cities within each climate zone, stored in text files that contain the name of the city, the name of the state, the high temperature, and the low temperature for each city in the climate zone. each data field is separated by a space. for example, one line in a climate zone data file would look like: