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OI-codes/Luogu/P1138/P1138.cpp

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// R39029021
#include <bits/stdc++.h>
using namespace std;
int main() {
int n, a[10005], k;
cin >> n >> k;
for (int i = 0; i < n; i++) {
cin >> a[i];
}
sort(a, a + n);
n = unique(a, a + n) - a;
if (k >= n) {
cout << "NO RESULT" << endl;
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} else {
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cout << a[--k];
}
return 0;
}