Sum of array elements#8763

Sum of array elements

1 second

128 megabytes

Easy

Given array $a$ of length $n$ . Find the sum of its elements.

Implement the function:

long long solve(int n, vector <int> arr); // C++

function solve(const n :integer; const arr: array of integer) : integer; // Pascal

public static int solve(int n, int []arr); // Java

def solve(n, arr); // Python

static long solve(long n, long [] arr); // C#

$n$ - size of array;
$a$ - array of integers;
function must return one integer - the sum of all array elements.

Input

First line contains number of elements $n$ ( $1 \leq n \leq 1 0^{5}$ 1 \leq n \leq 10^5) in array.

Second line contains $n$ integers $a_{1}$ a_1, $a_{2}$ a_2, ..., $a_{n}$ a_n ( $1 \leq a_{i} \leq 1 0^{6}$ 1 \leq a_i \leq 10^6) - the array elements.

Output

One integer will be printed - the sum of array elements.

Examples

Example 1

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Example 2

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Scoring

( $5$ points) $n \leq 1$ n \leq 1;
( $15$ points) $n \leq 100$ n \leq 100, $a_{i} \leq 100$ a_i \leq 100;
( $30$ points) $n \leq 1 0^{4}$ n \leq 10^4, $a_{i} \leq 1 0^{4}$ a_i \leq 10^4;
( $50$ points) without additional restrictions.

1 \leq n \leq 1 0^{5}

a_{1}

a_{2}

a_{n}

1 \leq a_{i} \leq 1 0^{6}

n \leq 1

n \leq 100

a_{i} \leq 100

n \leq 1 0^{4}

a_{i} \leq 1 0^{4}