Code Signal_练习题_adjacentElementsProduct

Given an array of integers, find the pair of adjacent elements that has the largest product and return that product.

Example

For inputArray = [3, 6, -2, -5, 7, 3], the output should be
adjacentElementsProduct(inputArray) = 21.

7 and 3 produce the largest product.

我的解答：

 1 def adjacentElementsProduct(inputArray):
 2     li = []
 3     if len(inputArray) == 1:
 4         return inputArray[0]
 5     elif len(inputArray) == 2:
 6         return inputArray[0]*inputArray[1]
 7     else:
 8         for i in range(len(inputArray)):
 9             if i+2 <= len(inputArray)-1:
10                 c_max = max(inputArray[i]*inputArray[i+1],inputArray[i+1]*inputArray[i+2])
11                 li.append(c_max)
12         return max(li)
13 ret = adjacentElementsProduct([3, 6, -2, -5, 7, 3])
14 print(ret)

膜拜大神：

def adjacentElementsProduct(inputArray):
    return max([inputArray[i] * inputArray[i+1] for i in range(len(inputArray)-1)])

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