23 lines
312 B
C++
23 lines
312 B
C++
#include <bits/stdc++.h>
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using namespace std;
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int main() {
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ios::sync_with_stdio(false);
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cin.tie(nullptr);
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int n, x, k;
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cin >> n >> k >> x;
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cout << n + 1 << '\n';
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k--;
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while (n--) {
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int a;
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cin >> a;
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cout << a << ' ';
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k--;
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if (!k)
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cout << x << ' ';
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}
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cout << '\n';
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}
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