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：

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

膜拜大神：

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