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Arrays(Swapping and Finding Max element)

PeacefulWarrior answered on July 5, 2023 Popularity 1/10 Helpfulness 1/10

answer Arrays(Swapping and Finding Max element)

Arrays(Swapping and Finding Max element)

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#include <iostream>
#include <algorithm>
using namespace std;

void listFirstNElements(int arr[], int size, int n) {
    cout << "First " << n << " elements: ";
    for (int i = 0; i < min(size, n); i++) {
        cout << arr[i] << " ";
    }
    cout << endl;
}

void listLastNElements(int arr[], int size, int n) {
    cout << "Last " << n << " elements: ";
    for (int i = max(size - n, 0); i < size; i++) {
        cout << arr[i] << " ";
    }
    cout << endl;
}

void swapArrayElements(int arr[], int size) {
    for (int i = 0; i < size - 1; i += 2) {
        swap(arr[i], arr[i + 1]);
    }
}

void findMaxAndSecondMax(int arr[], int size) {
    int maxVal = arr[0];
    int secondMaxVal = arr[0];

    for (int i = 1; i < size; i++) {
        if (arr[i] > maxVal) {
            secondMaxVal = maxVal;
            maxVal = arr[i];
        } else if (arr[i] > secondMaxVal && arr[i] != maxVal) {
            secondMaxVal = arr[i];
        }
    }

    cout << "Max: " << maxVal << endl;
    cout << "Second Max: " << secondMaxVal << endl;
}

int main() {
    int size;
    cout << "Enter the size of the array: ";
    cin >> size;

    int* arr = new int[size];

    cout << "Enter the elements of the array: ";
    for (int i = 0; i < size; i++) {
        cin >> arr[i];
    }

    int n;
    cout << "Enter the value of N: ";
    cin >> n;

    listFirstNElements(arr, size, n);
    listLastNElements(arr, size, n);

    cout << "Before swapping: ";
    for (int i = 0; i < size; i++) {
        cout << arr[i] << " ";
    }
    cout << endl;

    swapArrayElements(arr, size);

    cout << "After swapping: ";
    for (int i = 0; i < size; i++) {
        cout << arr[i] << " ";
    }
    cout << endl;

    findMaxAndSecondMax(arr, size);

    delete[] arr;

    return 0;
}

Popularity 1/10 Helpfulness 1/10 Language cpp

Source: chat.openai.com

Tags: c++ max

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Contributed on Jul 05 2023

PeacefulWarrior

0 Answers Avg Quality 2/10

Arrays(Swapping and Finding Max element)

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