Example: Convert an Array into Zig Zag in C++ language using Function

// Convert an Array into Zig Zag in C++ language using Function
#include <iostream>
#define N 100
using namespace std;

void makeZigZag(int arru[], int n) {
    bool flag = true;
    int temp;

    for (int i = 0; i <= n - 2; i++) {
        if (flag) {
            if (arru[i] > arru[i + 1]) {
                swap(arru[i], arru[i + 1]);
            }
        }
        else {
            if (arru[i] < arru[i + 1]) {
                swap(arru[i], arru[i + 1]);
            }
        }
        flag = !flag;
    }
}

int main() {
    int arru[N], x;
    // arru - it will store array elements
    // x - size of array

    cout << "-----enter the size of the array-----\n";
    cin >> x;

    cout << "-----Enter the " << x << " elements one by one-----\n";
    for (int i = 0; i < x; i++) {
        cin >> arru[i];
    }

    // This will change the array position into zig-zag
    cout << "\n-----The zig-zag pattern-----\n";
    makeZigZag(arru, x);
    for (int i = 0; i < x; i++)
        cout << arru[i] << ",  ";
    cout << "\n";
    return 0;
}