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Python program to find the sum of all elements of an array

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mahmoud2506
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2022-05-20
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Finding the sum of array elements

There are two ways to find the sum of all array elements, 1) traverse/access each element and add the elements in a variable sum, and finally, print the sum. And, 2) find the sum of array elements using sum() function.

Example:

    Input: 
    arr = [10, 20, 30, 40, 50]
    Output:
    sum = 150
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mahmoud2506
2022-05-20
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Python program for sum of the array elements

# Python program for sum of the array elements

# functions to find sum of elements

# Approach 1
def sum_1(arr):
    result = 0
    for x in arr:
        result += x
    return result

# Approach 2
def sum_2(arr):
    result = sum(arr)
    return result

# main function
if __name__ == "__main__":
    arr = [10, 20, 30, 40, 50]
    print ('sum_1: {}'.format(sum_1(arr)))
    print ('sum_2: {}'.format(sum_2(arr)))

Output

sum_1: 150
sum_2: 150

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