# Python: Sum of the magnitudes of the elements in the array with product signs

## Python Programming Puzzles: Exercise-57 with Solution

Write a Python program to find the sum of the magnitudes of the elements in the array. This sum should have a sign that is equal to the product of the signs of the entries.

Input: [1, 3, -2] Output: -6 Input: [1, -3, 3] Output: -7 Input: [10, 32, 3] Output: 45 Input: [-25, -12, -23] Output: -60

**Pictorial Presentation:**

**Sample Solution:**

**Python Code:**

```
def test(nums):
tot = sum(abs(i) for i in nums)
if all(nums):
return tot if sum(i < 0 for i in nums) % 2 == 0 else -tot
return 0
nums = [1, 3, -2]
print("Original list of numbers:")
print(nums)
print("Sum of the magnitudes of the elements in the array with a sign that is equal to the product of the signs of the entries:")
print(test(nums))
nums = [1, -3, 3]
print("\nOriginal list of numbers:")
print(nums)
print("Sum of the magnitudes of the elements in the array with a sign that is equal to the product of the signs of the entries:")
print(test(nums))
nums = [10, 32, 3]
print("\nOriginal list of numbers:")
print(nums)
print("Sum of the magnitudes of the elements in the array with a sign that is equal to the product of the signs of the entries:")
print(test(nums))
nums = [-25, -12, -23]
print("\nOriginal list of numbers:")
print(nums)
print("Sum of the magnitudes of the elements in the array with a sign that is equal to the product of the signs of the entries:")
print(test(nums))
```

Sample Output:

Original list of numbers: [1, 3, -2] Sum of the magnitudes of the elements in the array with a sign that is equal to the product of the signs of the entries: -6 Original list of numbers: [1, -3, 3] Sum of the magnitudes of the elements in the array with a sign that is equal to the product of the signs of the entries: -7 Original list of numbers: [10, 32, 3] Sum of the magnitudes of the elements in the array with a sign that is equal to the product of the signs of the entries: 45 Original list of numbers: [-25, -12, -23] Sum of the magnitudes of the elements in the array with a sign that is equal to the product of the signs of the entries: -60

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