For Alisa 89 1 (6)

#include <iostream>
#include <vector>
#include <algorithm>
#include <windows.h>

using namespace std;


bool isSimple(int n)
{
    if (n == 1)// 1 это не простое число
        return false;
    for (int i = 2; i * i <= n; ++i)
        if (n % i == 0)
            return false;
    return true;
}

int main()
{
    int x;
    cout << "X = ";
    cin >> x;
    int n;
    cout << "N = ";
    cin >> n;
    vector<int> a(n);
    for (int i = 0; i < n; ++i)
        {
            cin >> a[i];
            if (isSimple(a[i]))
                a[i] = x;
        }
    for (int i = 0; i < n; ++i)
        cout << a[i] << ' ';
    system("pause");

}