1)
#include <iostream>
#include <cmath>
#include <vector>
#include <algorithm>
#include <set>
using namespace std;
signed main() {
srand(time(NULL));
int n;
cin >> n;
int a[n];
for(int i = 0; i < n; i++)
a[i] = rand() % 5 + 1;
vector<int> ans;
for(int i = 0; i < n; i++)
{
cout << a[i] << " ";
if(a[i] == a[0])
ans.push_back(i);
}
cout << "\n";
for(auto i: ans)
cout << i << " ";
}
2)
#include <iostream>
#include <cmath>
#include <vector>
#include <algorithm>
#include <set>
using namespace std;
signed main() {
int n,k;
cin >> n >> k;
int a[n];
vector<int> ans;
for(int i = 0; i < n; i++)
{
cin >> a[i];
if(a[i] % k == 0)
ans.push_back(a[i]);
}
for(auto i: ans)
cout << i << " ";
}
3)
#include <iostream>
#include <cmath>
#include <vector>
#include <algorithm>
#include <set>
using namespace std;
signed main() {
int n,z;
cin >> n >> z;
int a[n];
for(int i = 0; i < n; i++)
{
cin >> a[i];
a[i] = min(a[i],z);
}
for(auto i: a)
cout << i << " ";
}
ответ:4