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Now, let’s use our knowledge of sets and help Mickey.
Ms. Gabriel Williams is a botany professor at District College. One day, she asked her student Mickey to compute the average of all the plants with distinct heights in her greenhouse.
Complete the average function in the editor below.
average has the following parameters:
The first line contains the integer, , the size of .
The second line contains the space-separated integers, .
STDIN Function ----- -------- 10 arr size N = 10 161 182 161 154 176 170 167 171 170 174 arr = [161, 181, ..., 174]
Here, set ([154, 161, 167, 170, 171, 174, 176, 182]) is the set containing the distinct heights. Using the sum() and len() functions, we can compute the average.
n = float(raw_input()) plant = set() sum_p = 0 for x in raw_input().split(' '): if x not in plant: plant.add(x) sum_p += float(x) print sum_p/float(len(plant))
def average(array): return sum(set(array))/len(set(array))
def average(array): s = set(array) return sum(s)/len(s)
def average(array): # your code goes here x=set(array) return float(sum(x)/len(x))
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