Submission #62508457

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#include <bits/stdc++.h>
#define int long long
using namespace std;
int n, m, x, cnt, ans[1001];
bool flag[1001];
signed main()
{
    cin >> n >> m;
    for (int i = 1; i <= m; i++)
        cin >> x, flag[x] = 1;
    for (int i = 1; i <= n; i++)
    {
        if (!flag[i]) ans[++cnt] = i;
    }
    cout << cnt << endl;
    for (int i = 1; i <= cnt; i++)
        cout << ans[i] << " ";
    return 0;
 
 
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#include <bits/stdc++.h>
#define int long long
using namespace std;

int n, m, x, cnt, ans[1001];
bool flag[1001];

signed main()
{
    cin >> n >> m;
    for (int i = 1; i <= m; i++)
        cin >> x, flag[x] = 1;
    for (int i = 1; i <= n; i++)
    {
        if (!flag[i]) ans[++cnt] = i;
    }
    cout << cnt << endl;
    for (int i = 1; i <= cnt; i++)
        cout << ans[i] << " ";

    return 0;
}

Submission Info

Judge Result