Python: Find a pair with highest product from a given array of integers
Python: Array Exercise-17 with Solution
Write a Python program to find a pair with highest product from a given array of integers.
Examples :
Input: arr[] = {1, 2, 3, 4, 7, 0, 8, 4}
Output: {7,8}
Input: arr[] = {0, -1, -2, -4, 5, 0, -6}
Output: {-4, -6}
Sample Solution:
Python Code :
def max_Product(arr):
arr_len = len(arr)
if (arr_len < 2):
print("No pairs exists")
return
# Initialize max product pair
x = arr[0]; y = arr[1]
# Traverse through every possible pair
for i in range(0, arr_len):
for j in range(i + 1, arr_len):
if (arr[i] * arr[j] > x * y):
x = arr[i]; y = arr[j]
return x,y
nums = [1, 2, 3, 4, 7, 0, 8, 4]
print("Original array:", nums)
print("Maximum product pair is:", max_Product(nums))
nums = [0, -1, -2, -4, 5, 0, -6]
print("\nOriginal array:", nums)
print("Maximum product pair is:", max_Product(nums))
Sample Output:
Original array: [1, 2, 3, 4, 7, 0, 8, 4] Maximum product pair is: (7, 8) Original array: [0, -1, -2, -4, 5, 0, -6] Maximum product pair is: (-4, -6)
Python Code Editor:
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Python: Tips of the Day
Find current directory and file's directory:
To get the full path to the directory a Python file is contained in, write this in that file:
import os dir_path = os.path.dirname(os.path.realpath(__file__))
(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)
To get the current working directory use
import os cwd = os.getcwd()
Documentation references for the modules, constants and functions used above:
- The os and os.path modules.
- The __file__ constant
- os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
- os.path.dirname(path) (returns "the directory name of pathname path")
- os.getcwd() (returns "a string representing the current working directory")
- os.chdir(path) ("change the current working directory to path")
Ref: https://bit.ly/3fy0R6m
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