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Python: Compute the sum of elements of an given array of integers

Python map: Exercise-11 with Solution

Write a Python program to compute the sum of elements of an given array of integers, use map() function.

Sample Solution:

Python Code :

from array import array
def array_sum(nums_arr):
    sum_n = 0
    for n in nums_arr:
        sum_n += n
    return sum_n

nums = array('i', [1, 2, 3, 4, 5, -15])
print("Original array:",nums)
nums_arr = list(map(int, nums))
result = array_sum(nums_arr)
print("Sum of all elements of the said array:")
print(result)

Sample Output:

Original array: array('i', [1, 2, 3, 4, 5, -15])
Sum of all elements of the said array:
0

Python Code Editor:

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Previous: Write a Python program to compute the square of first N Fibonacci numbers, using map function and generate a list of the numbers.
Next: Write a Python program to find the ration of positive numbers, negative numbers and zeroes in an array of integers.

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Python: Tips of the Day

Merging two dicts in Python 3.5+ with a single expression

Example:

# How to merge two dictionaries
# in Python 3.5+

x = {'p': 1, 'q': 3}
y = {'q': 5, 'r': 8}

z = {**x, **y}

z
{'r': 4, 'p': 1, 'q': 3}

z = dict(x, **y)
print(z)

Output:

{'p': 1, 'q': 5, 'r': 8}