python 编程： 请高手帮我解答python function (提示：不能超过2行)

1) You are given a variable, wwII_battle_winners , that is associated with a dictionary that maps the names of World War II battles to the victors of WWII battles. Write some code that associates a sorted list of the battle names that appear as keys in this dictionary with the variable battles .

2)The inverse of a map is a new map where the values of the original map become the keys of the new map and the keys become the values. For example, given the map {1:2, 3:4} , the inverse is the map {2:1, 4:3} . Given the map, d , create the inverse of d . Associate the new map with the variable inverse . You may assume that there are no duplicate values in d (that is no two keys in d map to the same value).

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