Average

Easy Arrays

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Problem Statement

Write a C++ program that reads an array of N integers and computes their average formatted to 2 decimal places.

Input Format

First line: N. Second line: N space-separated integers.

Output Format

Print average formatted to 2 decimal places.

Constraints

1 <= N <= 1000

Sample Input

4
10 20 30 40

Sample Output

25.00

Explanation

Calculates the sum of elements and divides by N using floating-point division.

Starter Code

#include <iostream>
#include <vector>
#include <iomanip>

int main() {
    int n;
    if (std::cin >> n) {
        std::vector<int> arr(n);
        for (int i = 0; i < n; i++) {
            std::cin >> arr[i];
        }
        // Write your code here
    }
    return 0;
}

Limits

Time Limit: 1s
Memory Limit: 256MB

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