gistfile1.txt

#include <iostream>
#include <vector>
#include <limits> 

double average(const std::vector<int>& arr) {
    if (arr.empty()) return 0;

    double sum = 0;
    for (int num : arr) {
        sum += num;
    }
    return sum / arr.size();
}

void minMax(const std::vector<int>& arr) {
    if (arr.empty()) {
        std::cout << "array is empty\n";
        return;
    }

    int minV = arr[0], maxV = arr[0];
    int minI = 0, maxI = 0;

    for (size_t i = 1; i < arr.size(); ++i) {
        if (arr[i] < minV) {
            minV = arr[i];
            minI = i;
        }
        if (arr[i] > maxV) {
            maxV = arr[i];
            maxI = i;
        }
    }

    std::cout << "minimum: " << minV << ", index: " << minI << std::endl;
    std::cout << "Maximum: " << maxV << ", index: " << maxI << std::endl;
}

void reverseArray(std::vector<int>& arr) {
    size_t left = 0, right = arr.size() - 1;
    while (left < right) {
        std::swap(arr[left], arr[right]);
        ++left;
        --right;
    }
}
int main() {
    std::vector<int> arr = { 10, 5, 20, 3, 7 };

    std::cout << "arithmetic mean: " << average(arr) << std::endl;
    minMax(arr);

    reverseArray(arr);
    std::cout << "array after reverse: ";
    for (int num : arr) {
        std::cout << num << " ";
    }
    std::cout << std::endl;
}