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Deepak Raj

Posted on • Originally published at codeperfectplus.com on

# A Very Big Sum - Problem-Solving | HackerRank

A Very Big Sum is an easy-level Python problem that requires basic knowledge of Python. In this post, we will provide a Python solution for A Very Big Sum.

## Problem Statement and Explanation

In this challenge, you need to compute and print the sum of the elements in an array, taking into account that some of those integers may be exceedingly large.

### Input Format

• The array βarrβ includes integers βa[i]β ranging from 1 to 10^10.

### Output Format

• The sum of the elements in the array, as a single integer.

## Explanation of Solution

• `aVeryBigSum` is a function in C++ that takes a vector of integers as input and returns the sum of all the elements in the vector. The function uses the `accumulate()` function to calculate the sum.

• The `accumulate()` function is a standard library function in C++. It takes three arguments: the beginning iterator of the range, the end iterator of the range, and an initial value. In this case, the initial value is 0.

• The `accumulate()` function works by iterating over the range and adding each element to the initial value. The final value of the accumulator is the sum of all the elements in the range.